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ALLAN HANCOCK PACIFIC EXPEDITIONS 



VOL. 22 



APPENDIX III 

 ANALYSES OF SAMPLES FROM NEARSHORE BASINS 



SANTA BARBARA BASIN: Analyses of 5 samples, listed by depth 

 in meters ; all samples contained living animals. 



n .i Biomass Bio-index p. , 



Station ue P m ml per Individuals v Uea 9 



m * . r, . Remains 



sample to bpecies 



3504 493 14.0 (25.2g) 68/11 mollusk shells 



3731_ 503 1.3 26/9 mollusk shells 



3733 558 24.1 (25.1g)* 12/7 mollusk shells 



3503 _ 581 0.4 4/2 mollusk shells 



4999 618 0.5 (0.48g) 3/3 mollusk shells 



*Excludes mysids. 



Sta. 3504-55 : 



Screenings retained little sediment, many mollusk shells, a trace of 

 foraminiferan tests and some living animals, the largest a maldanid, 

 Asychis lacera, the most conspicuous the pelecypods, Cardita redon- 

 doensis. 

 Mollusks 

 pelecypods 



Cardita redondoensis — 38 large and small living and many dead 

 shells, the living shells with colonies of a ctenostome bryozoan 

 Compsomyax subdiaphana — 2 

 Lucinoma annulata — 3 dead shells; one measures 52 x 45 mm, 



the two others about 35 x 30 mm 

 Tindaria calif ornica — 2 dead shells 

 gastropods 



Amphissa bicolor — 1 

 Epitonium cf. catalinense — 1 

 Nitidella permodesta — 1 living and 1 dead shell 

 solenogaster 



Chaetoderma sp. — 3 (flat-top form) 

 Bryozoan 



Bowerbankia gracilis — 1 colony 

 Crustacean 



Siriella sp. — 1 (probably in bathypelagic waters) 



