50 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 7 



Hololepida, species 



Collection. — 148-34. One fragment. 



A single macerated fragment of 27 segments is about 20 mm long 

 and 9 mm with setae. The prostomium has a nuchal hood, but its parts 

 are crushed and out of normal shape. There are 2 large eyes on each 

 side, more or less fused to one another. 



Notopodial setae are acicular, nearly smooth except for minute ser- 

 rations along one edge, and nearly as thick as the neuropodial setae, but 

 apparently heavier because of their cylindrical shape. Neuropodial setae 

 have expanded, flattened distal portion, the tips entire but slightly fal- 

 cate, the cutting edge finely serrated. 



The neuropodial lobes are less thickened distally than in H. veler- 

 onis (see above), the dorsal and ventral margins nearly parallel, but the 

 distal edge is obliquely truncate, beyond which the acicular lobe projects. 



Distribution. — ^Albemarle Island, Galapagos, in 12-15 fms. 



Genus THORMORA Baird 



Differs from Lepidonotus Leach in that some of its notopodial setae 

 are smooth, lancet-like, others are simple, serrated. 



Thormora Johns toni (Kinberg) 

 Plate 7, Figs. 96-98 



Lepidonotus johnstoni Kinberg, 1855, p. 384; Grube, 1876, p. 60; 



Chamberlin, 1919a, p. 74. 

 Lepidonotus (Thormora) johnstoni Seidler, 1924, p. 92. 

 Thormora johnstoni Monro, 1928a, p. 556; 1928b, p. 467. 



Collections.— 76-33, 194-34, 217-34, ?414-35, 450-35, 525-36, 530- 

 36, 558-36, 634-37, 683-37, 789-38, 878-38, 904-38. 16 specimens. 



First pair of elytra pale save for punctate disks, others with exposed 

 portion dark (pi. 7, fig. 97) due to small polygonal areas interspersed 

 among the punctate disks (pi. 7, fig. 98). The prostomium (pi. 7, fig. 

 96) resembles that of Polynoe taeniata Ehlers (1887, p. 51) later re- 

 ferred to Thormora (Seidler, 1924, p. 92) but the demarcation between 

 the prostomium and prostomial peaks is much less abrupt. The palpi are 

 not ciliated. In L. socialis Kinberg (1855, p. 383) the elytral margin 

 is fringed. 



