Pycnogonida |
Pantopoda |
Ammotheidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Benthic; depth range 0 - 115 m (Ref. 116112). Subtropical
Western Atlantic and Indo Pacific.
Length at first maturity / Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Trunk circular in dorsal outline; lateral processes contiguous, without major tubercles. Ocular tubercle only as tall as wide; eyes large. Chelifore scapes I-segmented; chelae vestigial, globular. Palps 8-segmented; terminal 4 segments short, very setose. Ovigers 10-segmented, with weak strigilis bearing denticulate spines. Legs slender; first coxae with 2 and second coxae with 3 laterodistal tubercles. Cement gland tube at dorsodistal tip of femur. Propodus large, without major heel spines (Ref. 2115, p. 11).
Coastal (Ref. 19) and outer continental shelf (Ref. 116112). Epibiotic (Ref. 116112). On corals (Ref. 2086).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | 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.
Stock, J.H. 1994 Indo-West Pacific Pycnogonida collected by some major oceanographic expiditions. p. 24. In Child, C. A. (ed.) The Marine Fauna of New Zealand: Pycnogonida (Sea Spiders). NIWA Bioderversity Memior 109. National Institute of Water and atmospheric Research (NIWA). )Washington, D.C. 20530, USA. 71 p. (Ref. 140)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Tools
More information
Trophic EcologyFood items (preys)
Diet composition
Food consumption
Predators
Population dynamicsGrowth
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundance
Life cycleReproductionMaturityFecunditySpawningEggsEgg developmentLarvae PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
Internet sources
Estimates based on models
Preferred temperature
(Ref.
115969): 22.7 - 28.2, mean 26.4 (based on 238 cells).
Price category
Unknown.
