Colossendeis microsetosa Hilton, 1943
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Family:  Colossendeidae ()
Max. size: 
Environment:  benthic; marine; depth range 249 - 640 m
Distribution:  Pacific Ocean: Alaska and USA.
Diagnosis:  Proboscis moderately narrow, expanding proximally to midpoint, with slight taper distal to midpoint, about 1.8 times length of trunk, with moderate distal downcurve in lateral view. Trunk typical, lateral processes slightly longer than their diameters. Ocular tubercle a truncate cone, anterior pair of eyes twice larger than posterior pair. Abdomen carried horizontally, moderately long, extending beyond distal rim of first coxae of 4th leg pair. Palp segment 3 about 1.3 times length of segment 5, distal 5 segments subequal in length, with ventral fields of tiny spines. Legs slender, tarsus short, only about 0.4 times as long as slightly curved propodus. Both tarsus and propodus with very short sole spines and scattered lateral and dorsal setae. Terminal claw about 0.3 times length of propodus (Ref. 2153, p. 26).
Biology:  Slope (Ref. 19).
IUCN Red List Status: Not Evaluated (N.E.) Ref. 123251)
Threat to humans: 
Country info:  Known from Aleutian, offshore Alaskan region (Ref. 2117); Unalaska Island off Dutch Harbor from 249 to 640 m (Ref. 2153, p. 26).

Entered by: Dar, Christine - 11.12.05
Modified by: Polido, Rubyann Robelle - 20.11.20

Source and more info: For personal, classroom, and other internal use only. Not for publication.

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