52 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 7 



Harmothoe exanthema (Grube) 



Polynoe exanthema Grube, 1856, p. 46. 

 Polynoe vesiculosa Grube, 1878a, p. 514. 



Harmothoe exanthema Bergstrom, 1916, pp. 287-288, pi. 3, fig. 5; 

 Monro, 1936, p. 85. (See Bergstrom, 1916, for additional syn- 

 onymy. ) 



Collections.— 213-3A, 372-35, 384-35, 385-35, Perdita Island, Gulf 

 of California. 17 specimens. 



Most individuals are characterized by having a pair of longitudinal 

 black stripes at the sides, over the dorsal surface of the parapodia, and 

 a transverse dark band across each anterior segment and on every sec- 

 ond or third segment more posteriorly. The elytra have some large, 

 globular vesicles with a terminal filament (see Bergstrom, 1916, pi. 3, 

 fig. 5) distributed chiefly along the posterior margin. There are, in 

 addition, numerous microtubercles over the entire surface. Marginal 

 cilia are few, weak, reduced to a short external area. The anterior eyes 

 are inserted ventrolaterally, slightly anterior to the widest part of the 

 prostomium. 



Neuropodial setae include both simple and bifid, in the same fascicle. 

 The notopodial setae are distally entire, serrated, some of them are 

 heavier than the neuropodial setae. 



Distribution. — Southern and western South America, north to the 

 Gulf of California, Mexico. Subintertidal to 75 fms. 



Genus EUNOfi Malmgren 



Eunoe senta (Moore) 

 Plate 10, Figs. 128-133 



Gattyana senta Moore, 1902, pp. 259-263, pi. 13, figs. 1-13; 1908, p. 



337; 1910, pp. 361-362; Treadwell, 1906, p. 1154; Berkeley, 



1923, p. 216. 

 Collection. — 874-38. 3 specimens. 



Length 18 to 22 mm, width 6 mm with, 4 mm without parapodia, 

 8 mm with setae. Prostomium pale, with 4 dark eyes on the posterior 

 half; prostomial antennae dark brown. The first segment has a few 

 stout setae resembling the more posterior blunt notopodial setae. The 

 second segment (first parapodial) has 2 well-developed setigerous fas- 

 cicles. Palpi and dorsal cirri are hirsute. 



