1903.] NATURAL SCIENCES OF PHILADELPHIA. 479 



Sagami Bay, 3,698, 153 fms.; Sendai Bay and northward, 3,767, 

 14-18 fms.; 3,771, 61 fnis. 



AMPHICTENID^E. 

 Cistenides hyperborea Mgrn. 



Off Kamchatka this species was found in very great numbers on 

 & soft muddy i)ottom in shallow waters, and a single small example in 

 Sendai Bay. The paleoli vary somewhat in number and length, but 

 are almost invariably 12 or 13 on each side. In the specimens from 

 station 3.777 they are so thickly incrusted with a brownish deposit as 

 to appear club-shaped. 



Sendai Bay, 3,767, 14-18 fms., one small example; off Kamchatka, 

 3,776, 3,777, 3,780, 12-13 fms. 



MALDANID^. 

 Nicomache (?) inornata sp. nov. (PI. XXVII, figs. 86, 87, 88.) 



Head and 14 anterior setigerous somites only known, these having 

 a length of 55 mm. and a diameter of 3 mm. Owing to the absence 

 of the anal funnel the generic reference is doubtful, the form of the 

 setae having chiefly led to the selection of Nicomache rather than Lum- 

 briclymene or a related genus. 



Prostomium and peristomium completely coalesced into a rather 

 slender head, which is twice as long as thick and truncated at a rather 

 acute angle; prostomial lobe or palpode pointed, curved dorsad, con- 

 tinuous with both median ridge and lateral margins of cejjhalic plate; 

 cephalic plate indistinct, its posterior half somewhat gibbous, the an- 

 terior concave, passing with rounded margins into the dorsal and lat- 

 eral surfaces of the head, no produced marginal folds; median ridge 

 about \ length of cephalic plate, rather low and broad, passing anteri- 

 orly into palpode, posteriorly indistinctly into gibbous portion of head; 

 sensory grooves well marked on each side of ridge and external to these 

 again triangular depressed areas bounded by the lateral margins of 

 cephalic plate. Peristomial region of head slightly compressed ; mouth 

 rather large, ventral, bounded posteriorly by a prominent pouting, but 

 rather narrow, lip. 



First 4 setigerous somites short, cylindrical, decreasing slightly in 

 length, each with an anterior annular ridge just in front of the seta 

 line; succeeding segments longer and more slender, but never much 

 elongated, boundaries very obscure after VIII; somites VI to IX with 

 anterior glandular rings but no distinct collars ; all somites except the 

 first 5 more or less marked with lateral vertical grooves and folds. 

 Head and anterior region of body very smooth. Tori indistinct and 

 laterad on anterior somites, thick swollen and more ventral after IX, 



