Pycnogonida | Pantopoda
Child, C.A. 1998. (Ref. 9)
Size / Weight / Age
Demersal; depth range 2450 - 2818 m (Ref. 9)
Climate / Range
Antarctic, Southwest Atlantic and Pacific: Argentina, New Zealand, Antarctica and South Orkneys Island.
Trunk, lateral processes and scapes with short dorsal spines on low tubercles. Trunk with first two segmentation lines, third line lacking. Lateral processes almost touching proximally, narrowly separated distally. Neck typical, very short, with large oviger bases. Ocular tubercle tall, curved, blind. Proboscis short, abdomen long, horizontal. Chelifores large, chelae with curved teeth, more teeth in movable than immovable fingers. Palp segments 4, 5 very short. Oviger typical, fifth segment longest, curved. Legs slender, armed with rows of short spines. First tibiae the longest segments, tarsus slightly longer than propodus, claw robust, auxiliary claws vestigial. Male cement glands open through 7 - 8 low ventral cups (Ref. 9).
Slope (Ref. 2116). 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