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Non-fish Identification: Find Species

Family: Portunidae swimming crabs (See list of species below)

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Total number of spines in dorsal and anal fins (optional)



210 species with fin ray counts including ? spines in dorsal and ? in anal fins (see list below)
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Achelous binoculus
[Redspotted swimming crab]


Achelous gibbesii
[Iridescent swimming crab]
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Achelous ordwayi
[Redhair swimming crab]
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Achelous rufiremus
[]


Achelous sebae
[]
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Achelous spinicarpus
[]
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Achelous spinimanus
[]
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Achelous tuberculatus
[]
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Achelous tumidulus
[Crevice sculling crab]
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Alionectes pulchricristatus
[]


Arenaeus cribrarius
[Speckled swimming crab]
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Arenaeus mexicanus
[Sand swimcrab]
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Bathynectes longispina
[Bathyal swimming crab]


Bathynectes maravigna
[deepsea swimming crab]
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Bathynectes piperitus
[Peppermint swimcrab]


Callinectes amnicola
[Bigfisted swimcrab]
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Callinectes arcuatus
[Arched swimming crab]
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Callinectes bellicosus
[Warrior swimcrab]
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Callinectes bocourti
[Blunttooth swimcrab]


Callinectes danae
[Dana swimcrab]
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Callinectes exasperatus
[Rugose swimcrab]
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Callinectes larvatus
[Masked swimcrab]
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Callinectes maracaiboensis
[Maracaibo swimcrab]
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Callinectes marginatus
[Marbled swimcrab]


Callinectes ornatus
[Shelling crab]
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Callinectes pallidus
[Gladiator swimcrab]
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Callinectes rathbunae
[Sharptooth swimcrab]


Callinectes sapidus
[Blue crab]
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Callinectes similis
[Lesser blue crab]
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Callinectes toxotes
[Giant swimcrab]
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Caphyra acheronae
[]


Caphyra loevis
[Xenia swimming crab]
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Caphyra rotundifrons
[Turtle-weed crab]
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Caphyra tridens
[]
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Caphyra unidentata
[]
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Carupa laeviscula
[]
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Carupa tenuipes
[Violet-eyed swimming crab]
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Catoptrus inaequalis
[]
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Catoptrus nitidus
[]
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Cavoportunus dubius
[]
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Charybdis acuta
[]
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Charybdis affinis
[Smoothshelled swimming crab]
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Charybdis amboinensis
[]
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Charybdis anisodon
[Twospined arm swimming crab]


Charybdis annulata
[Banded-legged swimming crab]
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Charybdis bimaculata
[Two-spot swimming crab]
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Charybdis brevispinosa
[]
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Charybdis callianassa
[]
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Charybdis erythrodactyla
[Rainbow crab]


Charybdis feriata
[Crucifix crab]
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Charybdis granulata
[]
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Charybdis hawaiensis
[Hawaiian swimming crab]


Charybdis hellerii
[Spiny hands]
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Charybdis hongkongensis
[]


Charybdis japonica
[Japanese swimming crab]
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Charybdis jaubertensis
[]
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Charybdis longicollis
[Lesser swimming crab]
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Charybdis lucifera
[Yellowish brown crab]
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Charybdis miles
[Soldier swimming crab]


Charybdis natator
[Ridged swimming crab]
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Charybdis obtusifrons
[]
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Charybdis omanensis
[]
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Charybdis orientalis
[]
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Charybdis ornata
[]
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Charybdis padadiana
[]
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Charybdis philippinensis
[]
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Charybdis rathbuni
[]


Charybdis riversandersoni
[]
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Charybdis sagamiensis
[]
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Charybdis smithii
[]


Charybdis truncata
[Blunt-toothed crab]
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Charybdis vadorum
[]
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Charybdis vannamei
[]
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Charybdis variegata
[]
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Cronius ruber
[Red swimcrab]


Cycloachelous granulatus
[]
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Cycloachelous orbitosinus
[]
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Cycloachelous suborbicularis
[]
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Echinolatus proximus
[]
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Euphylax dovii
[Pelagic swimcrab]


Gonioinfradens paucidentatus
[]
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Goniosupradens acutifrons
[]
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Laleonectes nipponensis
[]
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Laleonectes stridens
[]
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Laleonectes vocans
[spotted swimming crab]
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Lissocarcinus elegans
[]
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Lissocarcinus holothuricola
[]


Lissocarcinus laevis
[Swimmer crab]


Lissocarcinus orbicularis
[Sea cucumber crab]
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Lissocarcinus polybiodes
[]
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Lissocarcinus polyboides
[]
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Lupella forceps
[]
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Lupocyclus inaequalis
[]
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Lupocyclus philippinensis
[]
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Lupocyclus quinquedentatus
[]
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Lupocyclus tugelae
[]


Macropipus tuberculatus
[Knobby swimcrab]
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Monomia australiensis
[]
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Monomia curvipenis
[]
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Monomia lucida
[]
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Monomia rubromarginatus
[]


Necora puber
[Velvet swimming crab]
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Nectocarcinus antarcticus
[]
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Nectocarcinus bennetti
[]
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Neptunus longispinosus
[]
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Ovalipes australiensis
[]
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Ovalipes catharus
[Paddle crab]
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Ovalipes elongatus
[]
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Ovalipes floridanus
[Florida lady crab]


Ovalipes ocellatus
[Ocellate lady crab]
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Ovalipes punctatus
[Sand crab]
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Ovalipes trimaculatus
[Rowing crab]
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Parathranites hexagonum
[]
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Parathranites parahexagonus
[]
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Parathranites tuberosus
[]
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Podophthalmus nacreus
[]
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Podophthalmus vigil
[Periscope crab]
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Polybius henslowii
[Henslow's swimming crab]


Portumnus latipes
[Slender swimcrab]
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Portumnus lysianassa
[]
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Portunus acuminatus
[]
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Portunus anceps
[Delicate swimming crab]
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Portunus argentatus
[]
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Portunus armatus
[Blue swimmer crab]
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Portunus brockii
[]
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Portunus convexus
[]
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Portunus depressifrons
[Flatface swimming crab]
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Portunus gladiator
[]
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Portunus gracilimanus
[]
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Portunus guinotae
[]
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Portunus haanii
[Warty swimming crab]


Portunus hastatus
[Lancer swimcrab]
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Portunus iranjae
[]
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Portunus longispinosus
[]
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Portunus macrophthalmus
[]
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Portunus orbicularis
[]
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Portunus paralatibrachium
[]


Portunus pelagicus
[Blue swimming crab]
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Portunus petreus
[]
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Portunus pubescens
[Hairy swimming crab]
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Portunus reticulatus
[]
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Portunus rugosus
[]


Portunus sanguinolentus
[Threespot swimming crab]


Portunus sayi
[Sargassum swimming crab]
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Portunus sebae
[Ocellate swimming crab]


Portunus segnis
[]
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Portunus spinicarpus
[Longspine swimming crab]
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Portunus spinimanus
[Blotched swimming crab]
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Portunus tenuipes
[]
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Portunus trituberculatus
[Gazami crab]


Portunus tuberculosus
[Blood-spot swimming crab]
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Portunus ventralis
[]
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Portunus vossi
[]
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Portunus xantusii
[Xantus swimcrab]
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Raymanninus schmitti
[Sharpoar swimming crab]
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Sanquerus validus
[Senegalese smooth swimcrab]
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Scylla olivacea
[Orange mud crab]
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Scylla paramamosain
[Green mud crab]


Scylla serrata
[Indo-Pacific swamp crab]
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Scylla tranquebarica
[Purple mud crab]


Thalamita admete
[]
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Thalamita annulipes
[]
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Thalamita auauensis
[]
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Thalamita bevisi
[]
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Thalamita bouvieri
[]
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Thalamita cerasma
[]
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Thalamita chaptalii
[]
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Thalamita coeruleipes
[]
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Thalamita cooperi
[]
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Thalamita corrugata
[]


Thalamita crenata
[Wide front swimcrab]
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Thalamita dakini
[]
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Thalamita danae
[]
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Thalamita demani
[]
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Thalamita difficilis
[]
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Thalamita gatavakensis
[]
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Thalamita gloriensis
[]
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Thalamita gracilipes
[]
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Thalamita integra
[]
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Thalamita intermedia
[]
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Thalamita investigatoris
[]
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Thalamita iranica
[]
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Thalamita macropus
[]
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Thalamita macrospinifera
[]
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Thalamita malaccensis
[]
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Thalamita minuscula
[]
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Thalamita mitsiensis
[]
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Thalamita multispinosa
[]
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Thalamita philippinensis
[]


Thalamita picta
[]
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Thalamita pilumnoides
[]
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Thalamita poissonii
[Poisson swimming crab]
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Thalamita prymna
[]
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Thalamita pseudopelsarti
[]
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Thalamita quadrilobata
[]
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Thalamita rubridens
[]
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Thalamita savignyi
[]
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Thalamita seurati
[]
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Thalamita sima
[Four-lobed swimming crab]
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Thalamita simillima
[]
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Thalamita spinifera
[]
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Thalamita spinimana
[Spiny claw swimming crab]
No picture found

Thalamita stephensoni
[]
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Thalamita woodmasoni
[]
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Thalamitoides quadridens
[]
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Thalamitoides tridens
[]
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Xiphonectes bidens
[]


Xiphonectes hastatoides
[]
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Xiphonectes pseudohastatoides
[]
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Xiphonectes unidens
[]
210 Species of Family Portunidae
(swimming crabs)
Sort by: Species Length
Scientific Name English Name Distribution Max. Length (cm)
Achelous binoculus Redspotted swimming crab Western Atlantic Ocean.
Achelous gibbesii Iridescent swimming crab Western Atlantic
Achelous ordwayi Redhair swimming crab Western Atlantic Ocean. 1.06 CW
Achelous rufiremus Southwest Atlantic
Achelous sebae Western Central Atlantic
Achelous spinicarpus Southwest Atlantic
Achelous spinimanus Southwest Atlantic
Achelous tuberculatus Southeast Pacific
Achelous tumidulus Crevice sculling crab Western Atlantic
Alionectes pulchricristatus Indo-West Pacific 2.61 CW
Arenaeus cribrarius Speckled swimming crab Western Atlantic 14.1 CW
Arenaeus mexicanus Sand swimcrab Southeast Pacific
Bathynectes longispina Bathyal swimming crab Western Atlantic Ocean.
Bathynectes maravigna deepsea swimming crab Atlantic Ocean and the Me
Bathynectes piperitus Peppermint swimcrab Eastern Atlantic
Callinectes amnicola Bigfisted swimcrab Eastern Atlantic 12.2 CW
Callinectes arcuatus Arched swimming crab Eastern Pacific 19.5 CW
Callinectes bellicosus Warrior swimcrab Eastern Central Pacific 19 CW
Callinectes bocourti Blunttooth swimcrab Western Atlantic 16 WD
Callinectes danae Dana swimcrab Western Atlantic 13.9 CW
Callinectes exasperatus Rugose swimcrab Eastern Pacific and Weste 12.9 CW
Callinectes larvatus Masked swimcrab Western Atlantic 14.2 WD
Callinectes maracaiboensis Maracaibo swimcrab Western Central Atlantic 16 WD
Callinectes marginatus Marbled swimcrab Atlantic Ocean 10 CW
Callinectes ornatus Shelling crab Western Atlantic 13 CW
Callinectes pallidus Gladiator swimcrab Eastern Atlantic 10.9 CW
Callinectes rathbunae Sharptooth swimcrab Western Central Atlantic 15 WD
Callinectes sapidus Blue crab Western Atlantic 22.7 WD
Callinectes similis Lesser blue crab Western Atlantic 12.2 WD
Callinectes toxotes Giant swimcrab Eastern Pacific 16 CW
Caphyra acheronae Southwest Pacific
Caphyra loevis Xenia swimming crab Indo-West Pacific.
Caphyra rotundifrons Turtle-weed crab Indo-Pacific.
Caphyra tridens Indo-Pacific
Caphyra unidentata Indo-Pacific.
Carupa laeviscula Indo-West Pacific
Carupa tenuipes Violet-eyed swimming crab Indo-Pacific
Catoptrus inaequalis Indo-Pacific.
Catoptrus nitidus Indo-West Pacific.
Cavoportunus dubius Indo-Pacific.
Charybdis acuta Western Pacific.
Charybdis affinis Smoothshelled swimming crab Indo-West Pacific 6 CW
Charybdis amboinensis Western Pacific
Charybdis anisodon Twospined arm swimming crab Indo-West Pacific reachin 4.53 CW
Charybdis annulata Banded-legged swimming crab Indo-Pacific 7 CW
Charybdis bimaculata Two-spot swimming crab Indo-West Pacific 3.43 CW
Charybdis brevispinosa Indo-West Pacific
Charybdis callianassa Indo-West Pacific.
Charybdis erythrodactyla Rainbow crab Indo-Pacific.
Charybdis feriata Crucifix crab Indo-West Pacific 20 CW
Charybdis granulata Indo-West Pacific 8.25 CW
Charybdis hawaiensis Hawaiian swimming crab Pacific Ocean.
Charybdis hellerii Spiny hands Indo-Pacific. Introduced 7.9 CW
Charybdis hongkongensis Indo-West Pacific 4.56 CW
Charybdis japonica Japanese swimming crab Western Pacific 7 CW
Charybdis jaubertensis Eastern Indian Ocean
Charybdis longicollis Lesser swimming crab Western Indian Ocean
Charybdis lucifera Yellowish brown crab Indo-Pacific 47.4 CL
Charybdis miles Soldier swimming crab Indo- Pacific 7.5 CW
Charybdis natator Ridged swimming crab Indo-West Pacific 17 CW
Charybdis obtusifrons Indo-Pacific.
Charybdis omanensis Western Indian Ocean
Charybdis orientalis Indo-West Pacific
Charybdis ornata Western Central Pacific
Charybdis padadiana Western Central Pacific.
Charybdis philippinensis Western Central Pacific.
Charybdis rathbuni Eastern Central Pacific
Charybdis riversandersoni Indo-West Pacific
Charybdis sagamiensis Indo-Pacific
Charybdis smithii Indian Ocean
Charybdis truncata Blunt-toothed crab Indo-West Pacific 5 CW
Charybdis vadorum Indo-West Pacific 2.97 CW
Charybdis vannamei Western Central Pacific.
Charybdis variegata Indo-West Pacific. 3.04 CW
Cronius ruber Red swimcrab Atlantic Ocean and Easter 5.2 CL
Cycloachelous granulatus Indo-Pacific.
Cycloachelous orbitosinus Western Pacific
Cycloachelous suborbicularis Indo-Pacific.
Echinolatus proximus Eastern Central Pacific
Euphylax dovii Pelagic swimcrab Southeast Pacific
Gonioinfradens paucidentatus Indo-Pacific. Introduced
Goniosupradens acutifrons Indo-West Pacific
Laleonectes nipponensis Indo-Pacific.
Laleonectes stridens Eastern Central Pacific
Laleonectes vocans spotted swimming crab Atlantic Ocean
Lissocarcinus elegans Eastern Central Pacific
Lissocarcinus holothuricola Eastern Central Pacific
Lissocarcinus laevis Swimmer crab Central Pacific.
Lissocarcinus orbicularis Sea cucumber crab Indo-Pacific.
Lissocarcinus polybiodes Indo-West Pacific.
Lissocarcinus polyboides Indo-Pacific.
Lupella forceps Western Central Atlantic.
Lupocyclus inaequalis Indo-Pacific.
Lupocyclus philippinensis Indo-Pacific.
Lupocyclus quinquedentatus Indo-Pacific.
Lupocyclus tugelae Indo-West Pacific.
Macropipus tuberculatus Knobby swimcrab Eastern Atlantic and the 3.96 CW
Monomia australiensis Eastern Indian Ocean
Monomia curvipenis Eastern Indian Ocean
Monomia lucida Indo-West Pacific.
Monomia rubromarginatus Indo-West Pacific
Necora puber Velvet swimming crab Atlantic and the Mediterr 10.9 CL
Nectocarcinus antarcticus Southwest Pacific
Nectocarcinus bennetti Southwest Pacific
Neptunus longispinosus Western Central Pacific
Ovalipes australiensis Indo-West Pacific
Ovalipes catharus Paddle crab Southwest Pacific
Ovalipes elongatus Southwest Pacific
Ovalipes floridanus Florida lady crab Western Atlantic Ocean.
Ovalipes ocellatus Ocellate lady crab Western Atlantic Ocean. 8.7 CW
Ovalipes punctatus Sand crab Southern Atlantic and Ind 9.5 CW
Ovalipes trimaculatus Rowing crab Indo-West Pacific and Sou
Parathranites hexagonum Eastern central Pacific
Parathranites parahexagonus Eastern Central Pacific
Parathranites tuberosus Eastern Central Pacific
Podophthalmus nacreus Western Pacific
Podophthalmus vigil Periscope crab Indo-Pacific 15 CW
Polybius henslowii Henslow's swimming crab Eastern Atlantic and the 4.4 CL
Portumnus latipes Slender swimcrab Mediterranean (Spain, Fra
Portumnus lysianassa Mediterranean Sea.
Portunus acuminatus Eastern Pacific
Portunus anceps Delicate swimming crab Western Atlantic
Portunus argentatus Indo-West Pacific. 3.81 CW
Portunus armatus Blue swimmer crab Indo-West Pacific 22 CW
Portunus brockii Indo-West Pacific
Portunus convexus Indo-West Pacific
Portunus depressifrons Flatface swimming crab Western Atlantic Ocean.
Portunus gladiator Indo-West Pacific. 12 CW
Portunus gracilimanus Indo-West Pacific. 4.27 CW
Portunus guinotae Indo-Pacific.
Portunus haanii Warty swimming crab Indo-West Pacific. 8.24 CW
Portunus hastatus Lancer swimcrab Eastern Atlantic and thro 2.6 CL
Portunus iranjae Indo-Pacific.
Portunus longispinosus Indo-Pacific.
Portunus macrophthalmus Indo-Pacific.
Portunus orbicularis Western Pacific
Portunus paralatibrachium Eastern Central Pacific
Portunus pelagicus Blue swimming crab Indo-West Pacific 20 CW
Portunus petreus Indian Ocean
Portunus pubescens Hairy swimming crab Pacific Ocean
Portunus reticulatus Indian Ocean
Portunus rugosus Indo-West Pacific
Portunus sanguinolentus Threespot swimming crab Indo-Pacific. From East 21.5 CW
Portunus sayi Sargassum swimming crab Eastern Atlantic Ocean.
Portunus sebae Ocellate swimming crab Western Atlantic Ocean.
Portunus segnis Western Indian Ocean 16.2 CW
Portunus spinicarpus Longspine swimming crab Western Atlantic Ocean. 4.29 CW
Portunus spinimanus Blotched swimming crab Western Atlantic. Temper 9.19 CW
Portunus tenuipes Indo-West Pacific
Portunus trituberculatus Gazami crab Indo-West Pacific. 15.86 CW
Portunus tuberculosus Blood-spot swimming crab Indo-Pacific.
Portunus ventralis Western Atlantic.
Portunus vossi Western Central Atlantic
Portunus xantusii Xantus swimcrab Eastern Central Pacific 7.5 CW
Raymanninus schmitti Sharpoar swimming crab Western Atlantic Ocean.
Sanquerus validus Senegalese smooth swimcrab Eastern Atlantic 9.3 CL
Scylla olivacea Orange mud crab Indo-West Pacific 18 CW
Scylla paramamosain Green mud crab Indo-West Pacific 20 CW
Scylla serrata Indo-Pacific swamp crab Indo-West Pacific. Intro 28 CW
Scylla tranquebarica Purple mud crab Eastern Indian Ocean; Nor 20 CW
Thalamita admete Indo-Pacific. Tropical t
Thalamita annulipes Eastern Indian Ocean
Thalamita auauensis Eastern Pacific.
Thalamita bevisi Eastern Pacific
Thalamita bouvieri Indo-Pacific. Tropical t
Thalamita cerasma Pacific Ocean
Thalamita chaptalii Indo-Pacific. Tropical t
Thalamita coeruleipes Indo-Pacific. Tropical t
Thalamita cooperi Indo-Pacific. Tropical t
Thalamita corrugata Pacific Ocean. Tropical
Thalamita crenata Wide front swimcrab Indo-Pacific. 8 CW
Thalamita dakini Indo-Pacific.
Thalamita danae Indo-Pacific
Thalamita demani Indo-Pacific.
Thalamita difficilis Southwest Pacific
Thalamita gatavakensis Indo-Pacific.
Thalamita gloriensis Indo-Pacific, Northeast A
Thalamita gracilipes Indo-Pacific.
Thalamita integra Indo-Pacific.
Thalamita intermedia Eastern Indian Ocean
Thalamita investigatoris Western Central Pacific
Thalamita iranica Western Indian Ocean.
Thalamita macropus Pacific Ocean.
Thalamita macrospinifera Indo-Pacific.
Thalamita malaccensis Eastern Indian Ocean
Thalamita minuscula Eastern Central Pacific
Thalamita mitsiensis Indo-Pacific. Tropical t
Thalamita multispinosa Eastern Central Pacific
Thalamita philippinensis Indo-Pacific.
Thalamita picta Indo-Pacific.
Thalamita pilumnoides Indo-Pacific.
Thalamita poissonii Poisson swimming crab Indo-West Pacific and Eas
Thalamita prymna Indo-Pacific.
Thalamita pseudopelsarti Central Pacific
Thalamita quadrilobata Indo-Pacific.
Thalamita rubridens Western Indian Ocean
Thalamita savignyi Indo-West Pacific.
Thalamita seurati Pacific Ocean
Thalamita sima Four-lobed swimming crab Indo-Pacific 5.62 CW
Thalamita simillima Eastern Central Pacific
Thalamita spinifera Indo-Pacific.
Thalamita spinimana Spiny claw swimming crab Indo-West Pacific. 12 CW
Thalamita stephensoni Pacific Ocean
Thalamita woodmasoni Indo-Pacific
Thalamitoides quadridens Indo-Pacific. Tropical t
Thalamitoides tridens Indo-Pacific.
Xiphonectes bidens Northwest Pacific
Xiphonectes hastatoides Indo-West Pacific and Atl
Xiphonectes pseudohastatoides Western Pacific 5.28 CW
Xiphonectes unidens Northwest Pacific 3.76 CW



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