250 BIOLOGICAL SURVEY OF 



of an admixture of sand, depths 30 to 330 feet. A very com- 

 mon species. Stations : 32 dredging stations and P lOB. 



Haustoriidae 

 PoNTOPOREiA Kroyer 

 P. FEMORATA Kroycr. (G. 0. Sars, 1891, p. 123, pi. 41, fig. 1.) 

 Taken once on mud, in 40 feet of water, at P lOB. 



Phoxocephalidae 

 Phoxocephalus Stebbing 

 P. HOLBOLLi (Kroyer). (G. 0. Sars, 1891, p. 144, pi. 49.) 

 Taken on bottoms containing mud and blue clay, depths 30 

 to 220 feet. Stations : D 15, 18, 23, 55 ; P lOB. 



Harpinia* Boeck 



H. PLUMOSA (Kroyer). (G. 0. Sars, 1891, p. 151, pi. 52.) 

 Found on bottoms of mixed rock, gravel and mud, depths 30 

 to 75 feet. Stations : D 14, 23, 35, 118. 



H. LAEvis G. 0. Sars. (G. 0. Sars, 1891, p. 161, pi. 56, fig. 2.) 

 Taken twice on bottoms of mud and stones, depths 49 to 68 

 feet. The species is new to New England. Stations : D 45, 74. 



Stenothoidae 



The former family Metopidae is included here, since the 

 gap between these two families in the structure of the man- 

 dibular palp is well bridged by Stenothoides Chevreux and 

 Proboliella Walker. 



Metopa Boeck 



M. HiESUTiMANA Blake. (Blake, 1929, p. 20, fig. 10.) Taken 

 on rock bottom and once from the branchial chamber of Pyura 

 ovifera. Stations : D 20, 94. 



M. CARiNATA Hansen. (Hansen, 1888, p. 99, pi. 4.) An 

 examination of the mouth parts shows that this species must 

 be referred to Metopa. It is usually found on muddy bottoms, 

 depth 10 to 70 feet. Stations : D 35, 46, 54, 59, 92 ; P lOB. 



