NO. 2 HARTMAN : QUANTITATIVE SURVEY 375 



very numerous and diversified. In addition to those listed in the chart, 

 there were a ceriantharian (1), a polyclad (3), small nemerteans (2), 

 sipunculids penetrating coral stems (6'^), an oligochaete (6), many kinds 

 of bryozoans, differing from those in the preceding sample, amphipods 

 (many), isopods, especially anthurids (many), tanaids, pagurid crabs, 

 shrimps, a pycnogonid (3), and a small enteropneust (1). The most con- 

 spicuous species were Ophiothrix spkulata (30), A mphipholis squamata 

 (38), and a large Asterina niiniata. 



Numbers of species and specimens, excluding bryozoans (see list of 

 species elsewhere) , totalled : 



polychaetes 62 species, 459 specimens 



echinoderms 8 105 



mollusks 7+ 20+ 



crustaceans 5* 50* 



others (excl. 7 17 

 bryozoans) 



Total: 89"^ species, 651'^ specimens 



(excluding bryozoans) 



Sta. 3597, in 35 fms. OPG took 1.44 cuft of fine gray sandy mud 

 with many small animals. The most conspicuous and abundant species 

 was Amphiodia urtica (177), and other species were like those of the 

 mainland shelf in comparable depths and sediments. 



Sta. 3593, in 52 fms. OPG took 0.5 cuft of glauconitic sand and 

 much biological rubble. Animals were like those of the shelf, but in 

 sparser numbers. Characteristic echinoderms were Amphiodia occidentalis 

 and Ajnphipholis squamata, and polychaetes were Pherusa capulata and 

 Chloeia pinnata, with many other smaller kinds. 



Sta. 3592, in 57 fms. OPG took 0.44 cuft of shelly, glauconitic sand, 

 calcareous algae and gravelly rubble. There were no large, conspicuous 

 animals; all were small, diversified, best represented by polychaetes and 

 crustaceans, like those of the mainland shelf in comparable depths. 



Sta. 3591, in 88 fms. OPG took 0.14 cuft of glauconitic sand with 

 many kinds of small animals, most in sparse numbers, and Rhabdamina 

 foraminiferans. Characteristic polychaetes were Nothria stigmatis, Pista 

 cf. cristata, small maldanids, cirratulids, and other diversified kinds. 

 Echinoderms were represented by Amphipholis squamata, Amphiodia 

 urtica and Astropecten calif ornica, and mollusks by Amygdalum pallidu- 

 lum, Cadulus, Tellina, and others. Crustaceans were present as many 

 amphipods, a few isopods, tanaids, many ostracods, some cumaceans and 

 a small shrimp. 



