418 PROCEEDINGS OF THE ACADEMY OF [Juiie, 



the prostomium and first 5 somites only; the jaws as usual, no median 

 tooth; papillae ^ large, bilobed. 



Peristomial parapodium reaches level of median tentacular cerato- 

 phore; st3des similar to tentacles in form and color; the dorsal slightly 

 longer, the ventral equalling median in diameter and slightly exceed- 

 ing lateral in length. Ventral surface of body smooth, the neural 

 groove well marked, and anteriorly equal in width to the lateral 

 muscle bands. Nerve cords in contact throughout length. Some 

 of the somites are filled with purplish eggs. 



Parapodia prominent, but their length not exceeding f width of 

 body. Neuropodia taper toward slightly divided end which slopes 

 dorsad to a broadly rounded tip ; anterior lobe slightly larger and receiv- 

 ing the aciculum ; a slight subterminal constriction. Notopodium small 

 but prominent, on dorso-anterior face slightly distad of middle of 

 parapodium, supported by a strong aciculum and bearing a few setse. 

 The dorsal cirri have very prominent ceratophores which are erect, 

 curved laterad and sujiported on posterior margin of dorsal surface of 

 parapodia ; they resemble the tentacular cirri in form, color and size 

 and fully ^ of their length reaches beyond the corresponding setae. 

 The ventral cirri arise from low ceratophores about opposite the noto- 

 podia; the styles are slender and reach to the subterminal neuropodial 

 constriction. 



Only a few anterior elytra remain. They occur on the usual somites, 

 and are dehcate and membranous, but rather firmly attached. The 

 1st pair is missing; succeeding ones are broadly and nearly regu- 

 larly reniform, with small elliptical areas of attachment so near to 

 the lateral margins that fully f of each scale is free medially, permitting 

 them to overlap broadly. Margins smooth and non-cihate. Dorsal 

 surface punctate with distant sensory spots, and smooth except for 

 an anterior border, broadest at the emargination, bearing small, low, 

 faintly keeled crowded papillae; most of the scales bear a prominent, 

 more or less serrate crest extending from a point just over the medio- 

 caudad margin of the scar toward, but not to, the posterior margin ; 

 frequently a similar but slighter ridge runs from the main one at an 

 angle of 30°-45° laterad and caudad, or almost exactly in the direction 

 of the dorsal cirrus of the following somite. The general surface of 

 the scales is a delicate pale mottled brown, the crests a deeper brown. 



Only 3 or 4 notopodial setae occur in a small tuft which arises from 

 the anterior surface of the base of the notopodium, and fails by a con- 

 siderable distance to reach the end of the latter; they are rather stout 

 for their length, slightly curved and tapering, but not sharp- 



