NO. 1 hartman: quantitative survey 41 



ANALYSES OF SAMPLES. GIVING BIOLOGICAL 

 COMPONENTS 



The serial numbers 1 to 267, shown on Chart 1, correspond to the 

 samples that have been taken in San Pedro Basin. The following pages 

 give a summarized analysis of many of the animals, with numbers of 

 individuals, for some of the samples. Specific determinations are to be 

 regarded as provisional ; they are given to provide an index and approxi- 

 mation of the sample. Counts of individuals are minimal, especially for 

 tubicolous forms which have not been entirely examined. The identifica- 

 tions of species have been made by numerous individuals, indicated under 

 the proper category, unless specified in one of the Appendices (see below). 

 The analyses are intended to provide information on abundance and 

 diversity of species, and associations within a limited area. 



With the aid of the specific names and sample numbers, it is possible 

 to plot the distribution in San Pedro Basin for any particular species, 

 by placing it on its corresponding number on Chart 1. 



1. Station 2790-54. Of? Palos Verdes Point, in 180 fms, blue-gray 

 mud. 2.33 cu. ft. 



brissopsid and another urchin 



echiuroid 



burrowing anemone 



crustaceans, including amphipods, isopod, cumaceans, ostracod 



phoxocephalid amphipod, Harpinia sp. A. — 2 

 polychaetes, including: 



A glaophamus sp. — 2 



Anaitides sp. — 3 



Ckone sp. — 1 



cirratulid — 1 



Drilonereis sp. — 1 



Goniada sp. — 1 



Harmotho'e scriptoria — 1 



another harmothoid — 1 



Lnonice sp. — 1 



Lumbrineris cruzensis — 1 



another Lumbrineris sp. — 1 



Maldane sp. — many 



another maldanid — 1 



Nothria pallida — many, in thick mud-walled tubes 



