376 PROCEEDINGS OF THE ACADEMY OF [April, 



San Diego, 525-541 fathoms, green mud and fine sand; 4,335, same 

 locality and bottom, 500-530 fathoms; 4,353, same region, 628-640 

 fathoms, green mud; 4,354, same locality and bottom, 646-650 

 fathoms; 4,358, same region, 167-191 fathoms, green mud; 4,432 

 and 4,433, off Santa Rosa Island, 243-272 fathoms, green mud; 4,435. 

 and 4,436, off San Minguel Island, 264-287 fathoms, green mud; 

 4,452, off Point Pinos Light, Monterey Bay, 49-50 fathoms, green 

 mud and fine sand; 4,457, same locality, 40-46 fathoms, dark green 

 mud; 4,464, same region, 51-36 fathoms, soft, dark gray mud; 4.482, 

 off Santa Cruz Light, IMonterey Bay, 43-44 fathoms, soft green mud; 

 4,522, off Point Pinos Light, Monterey Bay, 130-149 fathoms, gray 

 sand and shells. 



With the exception of the last, at which a single specimen was taken, 

 the bottom at all of these stations was muddy. Most of the specimens 

 are thickly covered with foreign matter and stained deep brown or 

 black. 



Aphrodita refulgida sp. nov. Pi. XXXII, figs. 76-84. 



A species of the japonica-hamata group, so far as known of moderate 

 size and of smooth, neat appearance. Easily distinguished from 

 A. castanea by the brilliant green lateral fibers, the attenuated ends 

 of the neurosetae and the much less conspicuous notosetse. Form more 

 broadly ovate than A. castanea, only moderately depressed and with 

 regularly arched dorsum, caudal end attenuate. Length of type 

 36 mm.; maximum width (XV) of body 10.5 mm., between tips of 

 parapodia 18 mm., between tips of neuropodial seta 24 mm.; total 

 width including lateral fibers when floating in water 29 mm. ; maximiun 

 depth 11.5 mm. Number of segments 42, the last twelve very small 

 and forming a narrow caudal region concealed by the setse. Cotypes 

 23 and 35 mm. long with 40 and 43 segments respectively. 



Prostomium (PI. XXXII, fig. 78) subelliptical, nearly twice as wide as- 

 long, smooth and strongly convex dorsally, the sides and front regu- 

 larly rounded, the posterior border truncate and nearly straight and 

 united to the short peristomium by a broad, convex median nuchal 

 isthmus about one-fourth the width of the prostomium, on each side 

 of which is a deep transverse furrow. Ocular peduncles hemispherical 

 prominences nearly in contact and projecting over the anterior face^ 

 each bears two minute black eyes, one dorsal and one ventral. Median 

 tentacle arises from anterior face beneath ocular peduncles, about as. 

 long as prostomium, consisting of a short cylindrical ceratophore and 

 a slender tapered style about three times as long as the ceratophore, 

 its distal half colored yellow and tei-minal bulb minute. Palpi white,. 



