210 University of California Publications in Zoology [Vol. 13 



Amphicteis japonica Mcintosh 



AmpMcteis japonica Mcintosh (1885), p. 431, pi. 27a, figs. 3-5. 

 Collected in haul LXX-6, off La Jolla in 54 to 125 fathoms on 

 mud, sand, and soft black shale; and in haul LXXIII-1, off San 

 Diego in 106 to 132 fathoms on fine gray sand. 



Amphicteis glabra Moore 



Amphicteis glabra Moore (1905c), p. 849 pi. 44 figs. .5-8. 

 Collected in the following hauls: XIV-3, off San Pedro in 40 to 

 150 fathoms on gray mud; XLII-1, in San Diego Bay in 3 to 7 

 fathoms on soft black mud; LXXIII-1, off San Diego in 106 to 132 

 fathoms on fine gray mud; LXXIV, in San Diego Bay in 1 to 2 

 fathoms on mud and broken shells; 1124 and 1157, off La Jolla on a 

 muddy bottom in 160 fathoms. 



Amphicteis scaphobranchiata Moore 



Amphicteis scaphobranchiata Moore (1906), p. 255, pi. 12, figs. 54-61. 



In minor details these differ from Moore's description. The paleoli 

 often taper, at the end, in much more abrupt fashion than he figures, 

 and the peristomium shows transverse wrinkles on its dorsal surface. 

 The peculiarly shaped median branchia, which Moore thought might 

 not be normal, has this form wherever it appears, and is apparently 

 perfectly normal. 



Collected in the following hauls : XII-2, off San Pedro in 35 to 175 

 fathoms on black asphalt rocks, pebbles, coarse sand, and broken shells ; 

 XVIII, off San Pedro in 17 to 33 fathoms on sand and mud; XLII, 

 in San Diego Bay in 3 to 7 fathoms on soft black mud; LXX-6, off 

 La Jolla in 54 to 125 fathoms on mud, sand, and soft black shale. 



Ampharete arctica Malgren 



Ampharete arctica Malmgren (1864), p. 364, pi. 26, figs. 11-11 d. 

 Collected in haul VI-1, in the outer San Pedro Harbor in 9 fathoms 

 on gray sand. 



Melinna denticulata Moore 



Melinna cristata Moore (1905c), p. 851, pi. 44, figs. 9-10 (name preoccu- 

 pied) . 

 Melinna denticulata Moore (1908b). p. 349. 



Collected in haul LXXX-1, off San Diego in 135 fathoms on fine 



greenish-gray mud and sand; and in haul 1157, off La Jolla on a 



muddy bottom in 160 fathoms. 



