40 



U.S. NATIONAL MUSEUM BULLETIN 227 



Figure 8. — Polynoidae, a-c, Harmothoe extenuata: a, dorsal view prostomium and tentacular 

 segment; h, elytron of var. fropinqua; c, elytron of var. rarispina. d-f, Har7nothoe mac- 

 ginitiei: d, prostomium; e, elytron;/, tip of neuroseta. g, Harmothoe dearborni, elytron. 



Body darkl}^^ pigmented dorsally, with wide transverse, somewhat 

 interrupted brown bands. Elytra with mottled brownish coloration. 

 Eiytral microtubercles conical, hooked; soft macro tubercles near ex- 

 ternal border, not sharply set off from eiytral surface, wide at base 

 (may give border of elytra a scalloped effect). 



Biology. — Dredged on mixed bottoms of gravel, mud, and sand. 



Material examined. — Specimens from off Labrador, Nova Scotia, 

 Maine, Massachusetts, in 20 to 112 fathoms. 



