Pycnogonida | Pantopoda
King, P.E. 1973. (Ref. 12)
Size / Weight / Age
Benthic; depth range 27 - 55 m (Ref. 2115)
Climate / Range
Western Central Atlantic and Indo-West Pacific.
Trunk slender, long; neck very long, with few short spines at insertion of chelifores and proboscis. Cephalic segment longer than posterior 3 segments combined; glabrous lateral processes short, little longer than their diameters. Ocular tubercle low, apex with slender, anterior-pointing tubercle; eyes large. Proboscis short, with setose oral fringe. Abdomen short, erect, with 2 short lateral setae. Chelifores short; scapes with 1 long endal spine, several short ectal spines; chelae palms short, rounded, setose; fingers short, with several teeth. Palps lacking. Oviger long; fourth, fifth segments longest, subequal. Strigilis well developed, with denticulate spines and terminal claw. Legs very long, slender, lightly setose; second tibiae longest; propodus straight, with serrate heel spines matching those of tarsus and second tibia; claw robust; auxiliaries more than half main claw length (Ref. 2115, p. 61-62).
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 (Ref. 833).
IUCN Red List Status (Ref. 114614)
CITES status (Ref. 94142)
Threat to humans
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Estimation of some characteristics with mathematical models