84 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 27 



San Pedro sea valley, 817 m (150 tubes of which some are dead). 



Newport en, 85 m (1), 97 m (3), 140 m (8), 170 m (34), 178 

 m (50 or more, some large to 20-30 mm long), 272 m (1 large), 

 420m (1). 



Gastropod egg case. 

 Fig. 4e 



Santa Cruz en, in 218 m (3 cases), 221 m (1 case). 



Several large opaque white or cream-colored egg cases were taken 

 in two samples, both in Santa Cruz canyon. Each is broadly flask 

 shaped, with a maximum diameter of 21 mm, and 20 mm wide at 

 the base. The largest one measures 40 mm high to the base of the 

 tubules and 23 mm across at its widest part. The flask is slightly 

 constricted near the base, flares distally and gives rise to a larger 

 distal tube and 6 to 13 smaller, slenderer tubules around the distal 

 periphery. The capsule is thick, somewhat chitinized and tough to 

 tear. None of the contents revealed developing 5'oung, and since the 

 tubules were entirely opened at their distal ends, it is assumed that 

 the young had escaped before the capsules were taken. 



ECHIUROIDEA 



Three or more kinds of echiuroids were taken, only one in abun- 

 dance. 1 hey are summarized here with their occurrences in the canyons. 

 All references may be consulted in Fisher (1949, pp. 479-497). 



Arhynchite calif ornicus Fisher, 1949 



Fisher, 1949, pp. 486-487, pi. 30. 



as Arhynchite sp., in the List of stations and APPENDIX 



Monterey en, in 260 m (3 large) ; 410 m (4 large) . 



Hueneme en, in 373 m (1 and 2 large), 376 m (2). 



Diime en, in 7 1 1 m ( 2 ) . 



Santa Monica en, in 268 m (3 large), 330 m (2), 31 m (1 large). 

 463m (1 small). 



Redondo en, in 146 m (2 large), 363 m (2 large), 465 m (2 large), 

 298 m (4 large). 



The largest, from Redondo canyon, measure 140 mm long by 20 

 mm wide, and are dark blood red in life. The surface is opaque, 

 papillated most intensely at anterior and posterior ends and the middle 

 region of the body obscurely papillated. A single pair of brassy yellow, 

 spinous, distally hooked setae is visible at the anterior ventral end of 

 the body. The proboscis, frequently detached or lost, is long, slender, 

 ribbonlike, distally expanded and pale or white in life. On dissection a 



