NO. 2 HARTMAN, BARNARD: BENTH1C FAUNA OF DEEP BASINS 135 



(Hartman and Barnard, this volume, p. 44) reported as A. auhgastcr 

 Rathke, a species which is known to occur in shallower bottoms of 

 southern California. 



Genus POLYOPHTHALMUS Quatrefages, 1850 

 Polyophthalmus translucens, new species 



The type specimen is from Long Basin (Sta. 6349) and two others 

 are from Patton escarpment. The body is pale, translucent and measures 

 7.2 mm long for 18 setigerous segments. It resembles a nematode worm 

 in that the shape is cylindrical, smooth, glistening and slightly coiled. 

 It has a pair of lateral longitudinal grooves, and setal tufts extend out 

 from the sides, at segmental intervals. There is no color except for the 

 nuchal organs, near the posterior end of the prostomium ; these are rust 

 colored. The prostomium is long and acutely pointed in front ; it termi- 

 nates in front in a subspherical palpode. 



Parapodia are biramous, have notopodial and neuropodial setae in 

 discrete fascicles but those of a pair close together. The upper are about 

 twice as long as the lower setae and all extend laterally in spreading 

 tufts. The posterior end terminates in a slightly constricted collar with 

 terminal pore but there is no funnel. 



Elongate oval ova are present in median segments from 2 or 3 to 

 8 or 9 or later segments. 



Polyophthalmus translucens differs from the shallow water or inter- 

 tidal P. pictus Dujardin in that the body altogether lacks pigment, it has 

 only 18 instead of 27 to 28 setigerous segments and the posterior end is 

 presumed to lack an anal tube. P. translucens is known only from Long 

 Basin and Patton escarpment and is believed to be a deepwater species. 



Family STERNASPIDAE 

 Genus STERNASPIS Otto, 1821 

 Sternaspis fossor Stimpson, 1854 

 Berkeley and Berkeley, 1952, pp. 59-60, fig. 123. 



Small immature or vegetative individuals come from Santa Catalina, 

 Long, questionably San Nicolas Basins and Patton escarpment. The 

 species is commonly encountered in shelf and slope muddy bottoms of 

 southern California, and has been recorded from southern California in 

 depths of 36 to 667 fms (Moore, 1909 to 1923). It is more widely dis- 

 tributed throughout the northern hemisphere (Berkeley and Berkeley, 

 1952, p. 60). 



