27C proceed:: - v the academy of [April, 



about equal to frontal tentacles, quadri-annulate : styles two and 

 one-half times as long as ceratophores and reaching to middle of II. 

 sterior paired tentacles arise on the dorsal surface opposite the 

 middle of the prosl mium and just within its lateral borders: cerato- 

 ph - - nil r t th -r of the anterior pair: styles reach somite VII 

 or YIII. Median tentacle behind center of prostomiuni. similar to 

 posterior paired tentacles, but somewhat shorter, reaching only to 

 VI or VII. Pal; - shion-like, arising from posterior ventral surface 

 I se to mouth, diverging from median line, the broadly rounded ends 

 projecting beyond th - - of the prostomium. 



Peristomium very short above, in the median line only about 

 one-half as long as the prostomium. nearly twice as long at the sides 

 and carried forward to embrace the prostomium. the cephalic margin 

 as a consequence being deeply concave. Yentrally it forms the usual 

 bilobed lip. which is quite distinct from II. Xuchal cirri arise from 

 :eme anterior border of peristomium in line with the posterior 

 paired tentacles and separated by a distance of twice their length, very 

 slender and tapered. Somites II and III equal and elongated, each 

 3 long - prostomium and peristomium combined but no wider than 

 the latter. Both are simple segments, widest anteriorly. Behind III 

 the segments gradually increase in width and decrease in length to X. 

 from which they remain nearly uniform for the length of the piece, 

 being quite simple and about five times as wide as long : dorsally they 

 are flat, ventrally strongly convex, the parapodia arising high up. 

 Furrows well-marked and clean-cut and the cuticle very smooth and 

 highly iridescent. 



Anterior parapodia (PL XVII, figg 58 and 59; elongated and rather 

 slender, prominently outstanding and fully equalling the width of 

 their somites, from the anterior ends of which they arise. The first 



are dire - mewhat forward, but little more than those 



0. verQlaria. From the ventral level of the first they gradually rise 

 until the dorsal level is attained by the eighth. No important differ- 

 - noticeable among the 6 si seven or eight. All have the some- 

 what prolong! slightly flattened, neuropodial body terminated by 

 j.ort and broadly roimded presetal lip and a moderately prolonged 

 ?tsetal lip decidedly flattened at the base. Xotocirri and neuro- 

 cirri clavate, with thickened bases and more slender distal parts 

 ending bluntly; the former are longer than the postsetal lips and more 

 rid below their thickened bases, borne on a slightly con- 

 - not odial base: the neurocirri more proximal in origin and 



equal * -horter than the postsetal lip. At the eighth foot the 



