NO. 2 HARTMAN, BARNARD: BENTHIC FAUNA OF DEEP BASINS 217 



THE BENTHIC FAUNA OF THE DEEP BASINS 

 OFF SOUTHERN CALIFORNIA: CONTINUED 

 STUDIES IN THE SEAWARD AND DEEPER 



BASINS 



BY 



Olga Hartman and J. Laurens Barnard 



INTRODUCTION 



This report is a continuation and conclusion to that of Hartman and 

 Barnard 1958, concerning new samples taken in basins previously unre- 

 ported on, especially in those farther seaward and deeper. 



Only 43 new samples are considered, covering some of the previously 

 explored basins, but largely the Santa Cruz, San Nicolas, Tanner, West 

 Cortes, East Cortes, San Clemente, Long and Velero Basins, with a 

 few samples from the San Diego trough, a filled basin nearshore and the 

 Patton escarpment, marking the borderland area from the abyssal sea 

 floor. Due to the greater distance from the operating base and greater 

 depths, these samples have been more costly to recover than the 102 

 previous samples from shallow basins. 



Although many of the twelve major basins are still poorly sampled, 

 we believe those reported on provide the framework on which approxi- 

 mations can be made concerning the general biological structure of these 

 huge subsill bottom areas, because threads of similarity are interwoven 

 among groups of the basins, as will be discussed below. 



We have revised Table 1 of our previous report to include the new 

 data and have added triangular marks to our previous station map for 

 the new samples (Map 1). 



