216 University of California Publications in Zoology [Vol. 13 



shells ; XIV-2, off San Pedro in 25 to 240 fathoms on greenish-brown 

 mud and gray sand; XIX-3, off San Pedro in 30 to 77 fathoms on 

 soft mud, coarse sand, and pebbles ; LXX-3, off La Jolla in 55 to 108 

 fathoms on rocks and fine mud ; LXXII-2, off San Diego in 47 to 

 51 fathoms on soft gray mud; LXXII-4, off San Diego in 36 to 47 

 fathoms on mud; LXXIII-3, off San Diego in 57 to 106 fathoms on 

 dark-green mud and sand; 1157, off La Jolla on a muddy bottom in 

 160 fathoms ; 1475 and 1497, off La Jolla on a sandy bottom in 50 to 

 100 fathoms. 



Ammotrypane brevis Moore 



Ammotrypane hrevis Moore (1906), p. 354, fig. 1. 

 Collected from San Pedro. 



Ammotrypane gracile Mcintosh 



Ammotrypane gracile Mcintosh (1885), p. 357, pi. 43, figs. 9, 12. 

 Collected from Pacific Grove; Deadman's Island, San Pedro; San 

 Diego ; and Coronado. Collected also in the following hauls : XXXIV, 

 off Santa Catalina Island in 90 to 125 fathoms on green mud and 

 sand; LXXIII-3, off San Diego in 57 to 106 fathoms on dark-green 

 mud and sand ; 1112, off La Jolla in 45 fathoms on green mud and 

 fine sand. 



Polyophthalamus australis Grube 



PolyopMhalmus australis Grube (1878), p. 196, pi. 10, fig. 4. 

 Collected from White 's Point and vicinity near San Pedro ; and 

 in haul LXXVIII, from the piles of the Santa Fe wharf in San 

 Diego Bay. 



Ophelina magna sp. no v. 



PI. 12, figs. 34-36 



The body is ninety millimeters long and eight millimeters wide 

 at its widest point, the sixth setigerous somite. There are fortj-eight 

 somites and thirty-one pairs of gills, the first pair being on the 

 eleventh somite. 



The prostomium is smooth and bluntly conical (pi. 12, fig. 34). 

 On either side of its base is a prominent sensory pit. The peri- 

 stomium is marked, dorsally, by a longitudinal groove on either side, 

 which is continued posteriorly into a groove just dorsal to the setae 



