142 PSYCHKOPOTIDAE. 



probably fifteen but perhaps only twelve. Color, dull purplish gray; tentacles, 

 margin (at least orally) and midventral series of pedicels, deep purple. 



Calcareous particles apparently wanting ventrally but scatteringly present 

 dorsally; they have the form of crosses with nearly equal, slender, thorny arms; 

 each cross is about 125 ft across but here and there were fragments of larger 

 crosses at least 250 n across. The outer layer of skin is badly rubbed off and 

 as the crosses are in this layer, it is probable the fragmentary condition of the 

 larger crosses is due to rough treatment in the trawl. Perhaps the absence of 

 spicules ventrally is due to the same cause. 



Station 4649. Eastern Tropical Pacific, 5° 17' S., 85° 19' 30" W., 2,235 fms. Bott. temp. 35.4°. Fne. 

 stky. gr. m. 



One specimen. 



This species appears to be well characterized by the regular arrangement 

 of the conspicuous dorsal papillae but the species of Benthodytes are most per- 

 plexing, particularly as they usually lack spicules or possess only such as are 

 not very distinctive. Specific limits within the genus, as at present drawn, 

 must be considered purely tentative. 



Benthodytes sanguinolenta. 

 Theel, 1881. Challenger Hoi., pt. 1, p. 104. 



This species is a convenient catch-all for specimens which are more or less 

 elongated, have no calcareous particles, and lack any other distinctive feature. 

 Whether more than a single species has been, or is here, listed under the name, 

 it is impossible to say, owing to the almost uniformly bad condition of the 

 material. The specimens from the following stations are from 50-80 nun. 

 long and hence probably young, excepting one in fairly good condition, which is 

 140 mm. long by 15 mm. thick. The specimen from 4740 appears to have 

 only thirteen tentacles. 



Station 4651. Peru: west of Aguja Point, 111 miles. 2,222 fms. Bott. temp. 35.4°. Fne. stky. gy. m. 

 Station 4658. Eastern Tropical Pacific, 8° 30' S., 85° 36' W., 2,370 fms. Bott. temp. 35.3°. Fne. gn. m. 



mang. nod. 

 Station 4672. Peru: southwest of Palominos Light House, 88 miles. 2,845 fms. Bott. temp. 35.2°. 



Fne. dk. br. infus. m. 

 Station 4732. Eastern Tropical Pacific, 16° 32' 30" S., 119° 59' W., 2,012 fms. Bott. temp. 34.8°. 



Lt. gy. glob. oz. 

 Station 4740. Eastern Tropical Pacific, 9° 2' S., 123° 20' W., 2,422 fms. Bott. temp. 34.2°. Dk. gy. 



glob, and rad. oz. 



Eleven specimens. 



