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Chaetopleura gemma
Chaetopleura gemma Dall, 1879
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Family:  Callochitonidae ()
Max. size:  2.4 cm TL (male/unsexed)
Environment:  benthic; marine; depth range 0 - 50 m
Distribution:  Eastern Pacific: Canada and Mexico.
Diagnosis:  Body: Elongate oval. Tegmentum color: Variable, may be orange, dark red, greyish brown, with or without large patches of black; Some brightly colored specimens have tail valves that are completely black. Sculpture: Radiating, often branching rows of large granules on the head valve (30-36 rows) and lateral areas (5-8), the rows usually not reaching the apex. Central areas: Fine, close-set lines of granules, the lines becoming larger and further apart towards the outer margins of the valves. Postmucronal area: Scarce, scattered granules. Mucro: Submedian in younger specimens; subterminal in full-grown specimens. Girdle: Rather narrow, evenly orange-brown or greyish brown; with spicules of varying types and sizes; a marginal fringe of straight spicules (290). Valves: Range from bright orange with black tail valve (and white spot) to ashy green with same markings (Ref. 296).
Biology: 
IUCN Red List Status: Not Evaluated (N.E.) Ref. 123251)
Threat to humans: 
Country info:   
 

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