Abstract, ddontorhiua cyclin BERRY, 1947 is widely distributed on the continental borderland of southern California. It is a fannal element I n every major habitat type including two of the outer deep basins, Santa Cruz Basin and 8an Nicolas Basin. On the mainland shelf it is discontinuously distributed from Point Conception to the USDiexican Border. The depth distribution of Adonforhincc reflects the fact that it inhahits both topographic highs and some of the deep basins of the tmrderland. Tts depth range is from 11.6 to 1,886.0 meters. While rldonforhina is able to inhabit H N ide range of sediment types, from 1.5 to 8.1 mean phi, it was primarily collect.ed from locations n here sediments ranged from 3 to 5 mean phi. A direrse array of macrofaunal taxa is associated with ddontorhina. The nrimerically dominant t a m varied from habitat to habitat.

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SUMMARY Land plant debris occurs in appreciable quantities in the shelf sediments off Ventura, southern California. Concentrations range from less than 2 g (wet weight)/1 (less than 250 g/m2) to 53 g/1 (10,662 g/m2). The highest values are found near the outer edge of the shelf.