NO. 2 HARTMAN, BARNARD: BENTHIC FAUNA OF DEEP BASINS 93 



Nereis procera Ehlers, 1868 

 Ehlers, 1868, pp. 557-559, pi. 23, fig. 2. 

 Moore, 1911, p. 246. 

 Hartman and Barnard, this volume, p. 20. 



This is a common shallow water species, most abundant in soft 

 bottoms and in depths of less than 100 fms. It has been recorded only 

 once from basin depths; Moore (1911, p. 246) named it from Santa 

 Catalina and Santa Cruz Basins in depths to 1100 fms. 



Nereis sp. 

 A single anterior fragment comes from San Nicolas Basin (Sta. 

 6336) in 613 fms. The prostomium has 4 large black eyes; the proboscis 

 has well developed paragnaths on both rings. Median and posterior 

 parapodia are either damaged or missing so that the arrangement of 

 parapodial lobes cannot be ascertained. This may be a representative 

 of one of the shelf species. 



Genus EUNEREIS Malmgren, 1865 



Eunereis caeca, new species 



The type comes from Long Basin (Sta. 6349) ; another possibly 

 the same is from East Cortes Basin (Sta. 5943). The first measures 

 65 mm long and 5 mm wide, and consists of more than 80 segments; 

 a smaller one is only 1 1 mm long, with 40 segments. There is no color 

 except for the black acicula. The prostomium is approximately six-sided, 

 with the anterior end shortest and as wide as the combined bases of 

 the frontal antennae ; the posterior margin is the longest ; there are 

 no eyes. Frontal antennae are short, cirriform and about two-fifths as 

 long as the prostomium. The first two parapodia are uniramous and 

 all others biramous. 



The proboscis, seen by dissection, has a pair of translucent, horny, 

 brown jaws, each with 8 short, broadly rounded teeth along the curved 

 cutting edge and terminating in a long, curved smooth fang. The oral 

 ring of the proboscis lacks paragnaths, or there is a single minute 

 paragnath on area VI. The maxillary ring has its most conspicuous 

 paragnaths on area VII where there are 9 black cones; V has none; 

 VI has about 10 tiny black points and VIII has none or 2-3 very 

 small cones. 



