Pycnogonida |
Pantopoda |
Ammotheidae
Environment: milieu / climate zone / গভীরতার পরিসীমা / distribution range
বাস্তুসংস্থান
সমুদ্রবক্ষে ভাসমান (ব্যথিপেলাজিক); গভীরতার পরিসীমা 183 - 1789 m (সূত্র 9). Subtropical
Southeast Atlantic and Indo-West Pacific.
Length at first maturity / আকৃতি / Weight / Age
পরিপক্কতা : Lm ? range ? - ? cm
Trunk: fully segmented with long neck and closely spaced lateral processes. Tall dorsomedian trunk tubercles have 2 to 3 long lateral setae, ocular tubercle at extreme anterior of segment is tall slender cone without eyes, with pair of long setae flanking posterior base. Anterior of cephalic segment flaring, with low tubercles each having short seta which match dorsodistal rims of lateral processes. Some short setae on anterior and posterior of each lateral process. Proboscis: large, ovoid, without constrictions. Abdomen: moderately long, distally swollen, bearing 2 to short dorsal setae. Chelifores: very short, scapes 2 segmented, first segment extremely short, hidden by cephalic segment hood, both armed with several long setae. Chelae: atrophied, tiny slender cones with lateral stub representing movable finger. Palps: typical, 9 segmented. Ovigers: Ammothella-like, with non-functioning strigilis having 2 to 3 slender denticulate spines. Terminal: segment not longer than wide. Legs: long, slender, with many long lateral and dorsal setae. Propodus: slender, well curved, with 3 larger heel spines and many smaller sole spines. Claw: quite long, strongly curved, auxiliaries very short. Male cement gland tube: not within conical tubercle, situated at about 0.6 length of femur dorsum, angled distally (Ref. 9).
Depth based on occurrence record; to be replaced with better reference.
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
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): 5.1 - 11.8, mean 7.9 (based on 332 cells).
Price category
Unknown.
