48 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 7 



Genus HOLOLEPIDA Moore 



Body elongated, consisting of numerous segments. Prostomium with 

 antennae inserted subterminally ; eyes 4; a large nuchal flap projecting 

 over posterior part of prostomium (pi. 9, fig. 111). Notopodial setae 

 smooth, of one kind; neuropodial setae in anterior segments of two 

 kinds, ( 1 ) a small superior fascicle of fine, bent, denticulated setae, 

 and (2) a larger inferior fascicle of larger, straight setae toothed along 

 one edge. 



Hololepida veleronis, new species 

 Plate 9, Figs. 111-118 



Collections. — 549-36 (Holotype), 532-36. 2 specimens. 



A larger, anterior fragment (549-36) consists of 20 anterior seg- 

 ments, its length about 14 mm, width 3.3 mm without, 7 mm with 

 parapodia, and 10 mm with setae at the sixteenth segment. 



The prostomium is more than twice as broad as long, the lobes 

 separated by a wide shallow median sulcus. A well developed nuchal 

 flap extends forward reaching nearly to the base of the median cerato- 

 phore (pi. 9, fig. 111). Eyes are large, lenticulated, the anterior pair 

 at the widest part of the prostomium, the posterior pair adjacent to the 

 anterior, but nearer together. Prostomial antennae 3, ceratophores long, 

 slender, styles subequal to one another, similar in shape and size to the 

 peristomial cirri. Palpi are stout at base, long, tapering, extend distally 

 beyond the tips of the antennae. A longitudinal groove extends length- 

 wise on the dorsal side. 



Elytra pale, soft, the margin without fringe or papillae, greatly 

 wrinkled and folded at the lateral edges; the surface smooth save for 

 minute glistening microtubercles dispersed over the surface. 



Parapodia elongate, directed laterally at sides of body. The second 

 (first elytrophorous) segment resembles those following except that its 

 ventral cirrus is much longer (pi. 9, fig. 118). The notopodial and 

 neuropodial setae resemble those in more posterior podia except that 

 some superior neuropodial setae are somewhat bent (pi. 9, fig. 117). 

 Notopodia are reduced, papillar, provided with aciculum and from 10 

 to 15 stiff, rod-like setae. The dorsal cirrophore is long; it extends dis- 

 tally nearly to the middle of the dorsal setae; its style is much longer, 

 slender, reaching well beyond the tips of the neuropodial setae (pi. 9, 

 fig. 112). 



