66 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 7 



6,2 mm with setae. The body and elytra are pale except for black eyes 

 and a few diffuse sooty patches on some of the anterior elytra. Some of 

 the posterior elytra are encrusted with rust-colored granulation. 



Prostomium trapezoidal, widest anteriorly, the width slightly ex- 

 ceeding the length; with a pale median longitudinal line but without a 

 median sulcus. Eyes 4, black, the anterior pair at the anteroventral mar- 

 gin, concealed from dorsal view by the antennal ctenidia, and a posterior 

 pair at the sides of, and slightly posterior to, the antennal base (pi. 16, 

 fig. 188). Median antenna similar to the peristomial cirri, but about 

 one third again as long. Palpi are white, tapering, extending distally 

 beyond the prostomial antenna. 



Elytra completely cover dorsum; they are broadly overlapping pos- 

 teriorly and medially. The surface appears smooth to the unaided eye, 

 but under magnification shows numerous low, yellowish, chitinous, 

 simple spines. The margin is entire except for a limited outer border 

 which has a simple fringe (pi. 16, figs. 189, 191, 198, 202). The first 

 elytrum is suboval (pi. 16, fig. 191), narrower than that following, but 

 broadly overlapping the second one. The latter is deeply excavate at the 

 anterior border, the point of attachment proportionately far posterior 

 (pi. 16, fig. 189). Other elytra are increasingly larger toward the 

 median region of the body, the inner half of each scale forming a large 

 lobe at its anterior margin, the outer half less so. In anterior elytra the 

 surface is almost entirely overlain with simple, low spines; in the median 

 and posterior regions the spines are more or less obscured by a rust-col- 

 ored incrustation. In anterior elytra the prickly area extends over the 

 entire portion, in posterior scales the outer half is nearly or quite smooth 

 (pi. 16, fig. 202). Also, the outer fringe, at first more or less regular, 

 is less so in median and posterior elytra, and the spaces between the 

 longer fringe often filled in with minute, globular papillae (pi. 16, 

 fig. 198). The chitinous spines are low (pi. 16, fig. 195) and when 

 seen in dorsal view appear three-angled (pi. 16, fig. 194). 



Parapodia are typical of the genus, the first 3 pairs directed for- 

 ward at the sides of the prostomial and oral areas, the others laterally. 

 In the first few parapodia, from the second, the neuropodium extends 

 distally beyond the notopodium, but by the tenth segment they extend 

 distally about equally far, and more posteriorly the notopodium is the 

 longer. The first parapodium is uniacicular (pi. 16, fig. 190), with a 

 long dorsal cirrus, a ventral cirrus about half as long, and a shorter, 

 clavate cirrus, dorsoanterior to the dorsal cirrus that represents the 



