Other identification tools | SeaLifeBase

Non-fish Identification: Find Species

Family: Isognomonidae tree oysters (See list of species below)

Select Ocean (marine/brackish) or Continent (freshwater):

Select Country (optional):

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



17 species with fin ray counts including ? spines in dorsal and ? in anal fins (see list below)
No picture found

Crenatula modiolaris
[]
No picture found

Crenatula nigrina
[]


Isognomon alatus
[flat tree-oyster]
No picture found

Isognomon anomioides
[]


Isognomon bicolor
[bicolor purse-oyster]


Isognomon ephippium
[saddle tree oyster]
No picture found

Isognomon incisum
[]


Isognomon isognomum
[wader tree oyster]
No picture found

Isognomon janus
[thin purse-oyster]
No picture found

Isognomon legumen
[pod tree oyster]
No picture found

Isognomon marsupialis
[]
No picture found

Isognomon nucleus
[]


Isognomon perna
[rayed tree oyster]
No picture found

Isognomon radiatus
[radial purse-oyster]
No picture found

Isognomon recognitus
[purple purse-oyster]
No picture found

Isognomon vulselloides
[]
No picture found

Parviperna nucleus
[]
17 Species of Family Isognomonidae
(tree oysters)
Sort by: Species Length
Scientific Name English Name Distribution Max. Length (cm)
Crenatula modiolaris Indo-West Pacific.
Crenatula nigrina Indo-Pacific.
Isognomon alatus flat tree-oyster Western Atlantic. 7.2 DL
Isognomon anomioides Indo-Pacific.
Isognomon bicolor bicolor purse-oyster Western Atlantic. 3.5 DL
Isognomon ephippium saddle tree oyster Indo-West Pacific 14 SL
Isognomon incisum Eastern Pacific.
Isognomon isognomum wader tree oyster Indo-Pacific 15 SL
Isognomon janus thin purse-oyster Eastern Pacific.
Isognomon legumen pod tree oyster Indo-Pacific.
Isognomon marsupialis Northwest Pacific
Isognomon nucleus Indo-Pacific.
Isognomon perna rayed tree oyster Indo-West Pacific 7.5 SL
Isognomon radiatus radial purse-oyster Western Atlantic.
Isognomon recognitus purple purse-oyster Eastern Pacific.
Isognomon vulselloides Western Atlantic. 1.58 DL
Parviperna nucleus Indo-Pacific. 1.62 TL



Other identification tools in SeaLifeBase


Quick Identification
Identification keys
Identification by morphometrics
Identification by pictures:
          If you already know the Family, go to Search SeaLifeBase, select Family and click on 'Identification by pictures' to display all available pictures in SeaLifeBase for the family.

          If you already know the Country, go to
Search SeaLifeBase, select Country and click on 'Identification by pictures' to display all available pictures in SeaLifeBase for the country.

          If you already know the Ecosystem, go to
Search SeaLifeBase, select Ecosystem and click on 'Identification by pictures' to display all available pictures in SeaLifeBase for the ecosystem.
cfm script by , 30.11.04, ,  php script by , 05/11/2010 ,  last modified by kbanasihan, 06/28/2010