44 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 27 



Prionospio pygmaeus Hartman, 1961 



Redondo en, north wall, in 107 m ( 63 ) . 

 Tanner en, in 298 m ( ? 5 ) . 



Prionospio malmgreni Claparede, 1870 



Hueneme en, in 165 m (5), 338 m (2 small), 456 m (1). 



Mugucn, in 119 m (34), 177 m (5). 



Santa Monica en, in 116 m (1), 268 m (1), 330 m (? 2). 



Redondo en, south wall, in 57 m (60), 76 m (12 jv), 232 m 

 (5), 378 m (2), north wall, 113 m (8 small), 120 m (35), 122 m 

 (9), 146 m (22), axis, 137 m (7), 148 m (26), 282 m (3), 344 m 

 (4), slope, 167 m (10), 310 m (6). 



San Pedro sea valley, in 187 m (1), 468 m (5 jv). 



Newport en, in 16 m (2), 37 m (2), 97 m (7), 211 m (3). 

 235m (2), 272m (3 jv). 



La Jolla en, in 79 m ( 12) , 274 m (2 jv) . 



Coronado en, in 177 m ( 1 ) . 



Santa Cruz en, in 89 m (2). 



Catalina en, in 218 m (2 jv). 



Prionospio cirrifera Wiren, 1883 



Monterey en, in 410 m ( 1 ) . 



Hueneme en, in 177 m (26 very small, ovigerous), 183 m (3), 

 373m (6). 



Dume en, in 530 m ( ? 1 ) . 



Santa Monica en, in 268 m (1), 612 m ( ? 3 fragments). 



Redondo en, south wall, in 57 m (24), north wall, 120 m (5), 

 363 m (? 7), axis, 137 m (8), 148 m (46, ovigerous), 298 m (40), 

 344 m (39), 422 m (8), 503 m (4), 560 m (? 3 small, ovigerous), 

 slope, in 167 m (7). 



Newport en, in 16 m (168+ ), 37 m (285), 85 m (12), 235 m 

 (?35). _ 



Catalina en, in 88 m (3) . 



Prionospio, unknown speeies 



Redondo en, slope, in 556 m (2). 



Newport en, in 478 m (8). 



The diagnosis is based on specimens from Newport canyon. 

 Branchiae are first present from the second setigerous segment and 

 number 4 pairs; the first are bipinnate, the second and third pairs 

 are broad, laterally fimbriated, and the fourth pair are much slenderer, 

 longer and directed upward. The prostomium has 2 pairs of small 



