102 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 15 



Collections not previously reported. — 927-39 (1); 976-39 (3) 

 979-39 (1); 987-39 (2); 990-39 (11 anterior ends); 995-39 (9) 

 1003-39 (2); 1030-40 (3); 1081-40 (1); 1120-40 (7); 1126-40 (6) 

 1130-40 (6); 1131-40 (2); 1134-40 (1); 1138-40 (1); 1141-40 (1) 

 1142-40 (4); 1143-40 (8); 1151-40 (1); 1165-40 (1); 1169-40 (1) 

 1181-40 (1); 1197-40 (6); 1202-40 (2); 1203-40 (1); 1204-40 (4) 

 1205-40 (8) ; 1211-40 (11) ; 1219-40 (5) ; 1232-41 (4) ; 1235-41 (2) 

 1238-41 (1); 1249-41 (1); 1257-41 (2); 1261-41 (1); 1274-41 (1) 

 1275-41 (1); 1278-41 (1); 1282-41 (1); 1284-41 (7); 1293-41 (1) 

 1295-41 (13); 1320-41 (1); 1332-41 (2) ; 1335-41 (5); 1358-41 (1) 

 1359-41 (1); 1364-41 (1); 1372-41 (2); 1384-41 (3); 1413-41 (2) 

 1441-41 (4); 1442-41 (3); 1445-42 (1); 1449-41 (1); 1450-42 (2) 

 1451-42 (8); 1457-42 (4) ; 1472-42 (11); 1494-42 (1); 1496-42 (1) 

 1500-42 (3) ; 1502-42 (1) ; 1505-43 (4) ; 1582-47 (10) ; 1694-49 (3) 

 1871-49 (1); 1902-49 (2); many others come from areas of Lower 

 California, Mexico, north to British Columbia, Canada. 



Collections reported as N. assimilis Treadwell (1914, p. 193) now- 

 deposited in the Allan Hancock Foundation, have been reexamined and 

 are here referred to N. caecoides : from west Berkeley ( 1 ) , Santa Bar- 

 bara (1), San Pedro (1), Ballast Point in San Diego Bay (2), station 

 XIII off San Pedro in 35-36 fms (1), all from California; also, re- 

 ported as N. malmgreni Treadwell (1914, p. 192) from San Pedro 

 (1) ; and another reported as N. coeca Treadwell (1914, p. 192) from 

 Humbolt Bay, northern California. 



Distribution. — N. caecoides occurs in littoral zones of the temperate 

 northeast Pacific, south to Lower California, Mexico; it is especially 

 common in muddy sands of bays and lagoons, where it forms beds. 



Nephtys ferruginea Hartman 



N. malmgreni Treadwell, 1914, p. 192, in part. 



Nephthys caecoides ferruginea Hartman, 1940, p. 241, pi. 42, figs. 110- 



114, pi. 43, fig. 115. 

 Berkeley, 1945, pp. 327-328. 



Collections not previously reported.— 992-39 (1); 1032-40 (9) 

 1133-40 (1); 1220-40 (8); 1226-40 (1); 1251-41 (1); 1289-41 (6) 

 1290-41 (2) ; 1300-41 (5) ; 1386-41 (1) ; 1387-41 (6) ; 1390-41 (12) 

 1392-41 (1); 1396-41 (2); 1411-41 (1); 1435-41 (2); 1436-41 (2) 

 1471-42 (12) ; 1472-42 (4) ; 1622-48 (1) ; 1703-49 (1) ; 1787-49 (2) 

 Ballast Point in San Diego Bay, dredged (1); Ruxton Channel 

 Nanaimo, British Columbia, Canada (1, gift from Dr. C. Berkeley) 



