Pycnogonida |
Pantopoda |
Nymphonidae
Environment: milieu / climate zone / গভীরতার পরিসীমা / distribution range
বাস্তুসংস্থান
; গভীরতার পরিসীমা 0 - 540 m (সূত্র 9). Subtropical
Southwest Pacific: Australia and New Zealand.
Length at first maturity / আকৃতি / Weight / Age
পরিপক্কতা : Lm ? range ? - ? cm
S. West Pacific: The above specimens increase geographic distribution for the species to the east and west of North Island, more than double the previously known depth range. Clark's specimen came from New South Wales, Australia, in 540 m. Size small, leg span about 27 mm. Trunk moderately slender, lateral processes separated by their diameters or slightly less, with small rounded dorsodistal tubercles. Neck moderately long, with small rounded tubercle dorsal to each chelifore insertion, oviger implantations at posterior, against first lateral processes. Ocular tubercle a tall slender cone with distal eyes. Proboscis short, distally rounded. Abdomen short. Chelifores very large, scapes divergent. Chelae palms short, fingers long, both curved ventrally, overlap at tips. Immovable fingers with about 25 slender teeth, movable fingers with more than twice as many much smaller teeth. Palps with segment 2 shorter than 3, segments 4 and 5 subequal in length, with few distal setae. Ovigers with slender long fifth segment swollen distally, with few lateral setae. Strigilis claw with 9 - 10 ventral lobes. Legs slender, with few setae. Propodus about twice tarsus length, both without spines on soles, with few tiny setae. Claw moderately short, auxilliary claws very curved, about 0.6 as long as main claw. Male cement gland ventral with 7 low tubes, but mostly more, up to 11 per leg, with shortest tube proximal, longest tube distally (Figure 1G). Distal tubes as wide as tall (Ref. 9)
Life cycle and mating behavior
পরিপক্কতা | প্রজনন | ডিম ছাড়া | Eggs | ডিম্বধারন ক্ষমতা | Larvae
Members of the class Pycnogonida are gonochoric and sexually dimorphic. During copulation, male usually suspends itself beneath the female. Fertilization occurs as the eggs leave the female's ovigers. Males brood the egg masses until they hatch. Life cycle: Eggs hatch into protonymphon larva then to adults.
Child, C.A. 1998 The marine fauna of New Zealand: Pycnogonida (sea spiders). NIWA Biodiversity Memoire 109. National Institute of Water and Atmospheric Research (NIWA). Washington, D.C. 20530, USA. 71 p. + Figure 2A-G, 3A-F, 4, 5. (সূত্র 9)
IUCN Red List Status
(সূত্র 130435: Version 2025-1)
CITES status (সূত্র 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
হাতিয়ার
আরো তথ্য
ট্রফিক বাস্তুতন্ত্র Food items (preys)
পথ্য উপাদান
খাদ্য গ্রহণ
শিকারী প্রাণী সমূহ
বাস্তুসংস্থানবাস্তুসংস্থান
Population dynamicsবৃদ্ধি
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
প্রাচুর্য
Life cycleপ্রজনন পরিপক্কতা ডিম্বধারন ক্ষমতা ডিম ছাড়া EggsEgg developmentLarvae Physiologyঅম্লজান ব্যবহার
Human RelatedStamps, coins, misc.
ইন্টারনেট সুত্র
Estimates based on models
Preferred temperature
(Ref.
115969): 11 - 19.4, mean 13.7 (based on 62 cells).
Price category
Unknown.
