Pycnogonida |
Pantopoda |
Ammotheidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Benthic; depth range 45 - 73 m (Ref. 2115). Tropical
Western Central Atlantic: Venezuela.
Length at first maturity / Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Trunk moderately slender, with 2 extremely tall median tubercles, each bearing row of sharp spines mostly on posterior surface. Ocular tubercle only twice as long as diameter, much shorter than median tubercles. Lateral processes long, separated by their diameters, with spinose dorsodistal tubercles and shorter laterodistal tubercles. Proboscis cylindrical, tapering distally. Abdomen long, with ventrodistal bend, bearing 2 short proximal tubercles, 2 long dorsomedian tubercles, and 2 long dorsodistal tubercles, each bearing lateral and distal spines. Chelifore scapes 1 segmented, long, with several setose, short distal tubercles; chelae tiny, vestigial. Oviger segment 4 long, slender; strigilis weak, terminal segment tiny, with 3 broad spines. Legs with extremely long, spinose dorsal and lateral tubercles; propodus straight, with slight heel bearing 2 spines (Ref. 2115, p. 28).
Shelf (Ref. 19).
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.
Child, C.A. 1992 Shallow-water Pycnogonida of Gulf of Mexico. Memoirs of the Hourglass Cruises 9:1-86. Florida Department Natural Resources, Bureau of Marine Resources, Jan. 1992. (Ref. 2115)
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
Price category
Unknown.
