1908.] NATURAL SCIENCES OF PHILADELPHIA. 357 



Brada villosa (Rathke) Malmgren. 



Siphnno^toma villomm Rathke, Nov, Act. Acad. Ca?s. Leop.-Car. Nat. Cur., 

 XX (1843), p. 218. 



No good figures of the setse of this species have been found and the 

 identification is based on the characters of the papillae, tentacles, etc. 

 Most of the specimens have the head extended. The number of seg- 

 ments is usually about 30, thus exceeding the number shown in Rathke's 

 figure. The surface is coated with mucous, which becomes hard and to 

 which sand grains adhere, producing a gritty surface, especially on the 

 bases of the papillae. Marenzeller records the occurrence of this species 

 in Bering Sea. 



Stations 4223, Boca de Quadra, 48-57 fathoms, soft green mud; 

 4272, Afognak Bay, Afognak Island, 12-17 fathoms, sticky mud. 



Brada pilosa Moore. 



Brada pilosa Moore, Proc. Acad. Nat. Sci. Phila., 1906, pp. 231-233, PI. X, 

 figs. 1-1-17. 



This is a rather common species northward. Examples occur in 

 the collections from Stations 4194, Halibut Bank, Gulf of Georgia, 

 11 1-170 fathoms; 4198, same region, 157-230 fathoms, soft green mud; 

 4251 (type locality), Stephens Passage, 198 fathoms, rocky bottom ; 

 4235, Yes Bay, Behm Canal, 130-193 fathoms, gray mud; 4252, 

 Stephens Passage, 198-201 fathoms, gray mud, and 4258, Lynn Canal, 

 300-313 fathoms, mud. 



STERNASPID^. 



Sternaspis scutata (Ranzani) Otto. 



SterJiaspis scutata, Marenzeller, Ann. K. K. Nat. Hofmuseums Wien, V, 

 (1890), p. 6. 



These specimens agree exactly with those taken by the Albatross off 

 Japan. Compared with typical examples of the species from the 

 Mediterranean, they appear to have both the cephalic and caudal seta? 

 more slender, and the shorter setae of the latter region much less hairy. 

 This appears to be due to the hairs having been rubbed off, but may 

 possibly be a normal and constant difference. The form of the caudal 

 plate and branchial area agrees with Marenzeller's figures. 



Stations 4235, vicinity of Yes Bay, Behm Canal, Alaska, 130-193 

 fathoms, gray mud; 4236, same region, 147-205 fathoms, rocks and 

 coarse sand; 4251, Stephens Passage, 198 fathoms, rocks; 4252, sam.e 

 region, 198-201 fathoms, gray mud; 4255, Taiya Inlet, Lynn Canal, 

 247-259 fathoms, rocky. 



