420 PROCEEDINGS OF THE ACADEMY OF [June, 



freely from the base of the parapodia. The last 7 somites present have 

 their parapodia packed with whitish eggs. 



Parapodia long, exceeding the dorsal width of the body except at its 

 widest part, slender, tapering with a gentle curve to the slightly bi- 

 lobed tip, the distal end oblique with a rather acute dorsal angle. The 

 neuropodium, which forms the greater part of the parapodium, as 

 just described, is divided by a vertical cleft into two plates, which are 

 not so widely separated as in Scalesetosus, though that condition is 

 approached anteriorly; anterior lobe the larger and receives the end 

 of the rather strongly ciu'ved aciculum. The notopodium is a rudi- 

 mentary nipple-like process which bears no setae but receives the end 

 of a slender aciculum. No important variations of the parapodia be- 

 yond the usual diminution in size occur toward the ends of the body. 



Except for a minute regenerating one on XV all of the elytra have 

 been lost. 



The neuropodial setse are perfectly colorless, dehcate and brittle, 

 but not especially slender in proportion to their length ; the end rather 

 abruptly enlarged, shghtl}' curved and tapering to a bifid extremity, 

 the terminal process of which is larger and slightly hooked; immedi- 

 ately proximad of the 2d one or spur are 9-14 short transverse combs, 

 the teeth of which are iTiinute distally but in the proximal rows exceed 

 the diameter of the seta. There are no notopodial setse. 



Type, Sagami Bay, 3,698, 153 fms. 



APHRODITID^. 

 Laetmatonice producta Grube. 



Sagami Bay, 3,698, 153 fms. 

 Laetmatonice producta Grube var. benthaliana Mcintosh. 



Suruga Bay, 3,726, 26 fms.; Totomi Sea, 3,729, 34 fms.; North 

 Japan, 3,772, 79 fms. ; North Japan, 3,774, 81 fms. 



Laetmatonice filicornis Kinberg. 



A single specimen of this Atlantic species occurs in the collection 

 from an unknown station. The setse differ somewhat from those of 

 specimens dredged off the American coast. 

 Laetmatonice japonica Mcintosh. 



Sagami Bay, 3,698, 153 fms. ; Sagami Bay, 3,738, 167 fms. 



Lsetmatonice pellucida sp- nov. (PI. XXIII, figs. 19, 20.) 



This species belongs to the producta group, and if Mcintosh's views 

 concerning the subdivisions of the latter prove to be correct may have 

 to be considered as a variety merely. The largest specimen measures 



