NO. 2 HARTMAN : QUANTITATIVE SURVEY 343 



Numbers of species and specimens totalled : 

 polychaetes 10 species, 31 specimens 



ophiuroid 1 1 



mollusks 2 6 



others 3 6 



Total: 16 species, 44 specimens 



West End 



1. Sta. 3570 (no. 162). in 48 fms. OPG took 0.56 cuft of sandy 

 mud with shelly debris and considerable life; dead remains included those 

 of Laqi/euSy Terebratalia, solitary corals. Protula tubes and coralline 

 algae. The most conspicuous living animals are listed in the chart. 



2. Sta. 5148 (near no. 162), in 98 fms. OPG took 0.31 cuft of glau- 

 conitic sand with foraminiferans and large oil globules. Ophiuroids were 

 most conspicuous. In addition to the species named in the chart, there 

 were six amphipods (19), two cumaceans (3) and three ostracods (37). 

 The largest animals were ophiuroids, and the most abundant Prionospio 

 nialingrcni (35), Atnphiodia digitata (29), Nothria stigmatis (30), and 

 Ainphiacantha amphacantha (24). Total numbers were estimated at 45 

 species and 241 specimens. 



3. Sta. 2736 (no. 160), in 132 fms. OPG took 1.57 cuft of sandy 

 green mud with reddish brown waxy lumps and many dead shells of 

 (Jfirdita, Cuspidaria, Cadulus, Nassarius and Thyasira. In addition to the 

 species named in the chart, there were a few amphipods and isopods. The 

 largest animal was Brissopsis pacifica, and the most abundant were 

 Aniphiodia digitata (64) and Ajnphiopluj strongyloplax (22). Total 

 numbers were estimated at 32 species and 140 specimens. 



4. Sta. 2389 (no. 161), in 136 fms. OPG took 2.2 cuft of gray sand 

 and mud with many animals. In addition to those listed in the chart, 

 there were a burrowing anemone ( 1 ) , a polyclad ( 1 ) , a sipunculid ( 1 ) , 

 a large echiuroid ( 1 ), and a few small crustaceans. Largest species were 

 Brissopsis pacifica and the echiuroid, and the most abundant were the 

 ophiuroids. Total numbers were estimated at more than 45 species and 

 175 specimens. 



Sub 4. Sta. 5146 (near no. 160), in 140 fms. Grab took a large 

 basaltic rock, 14" by 7.5", with attached large sponge (Heathia), soli- 

 tary coral, alcyonarlans (2), tunicates, and bored by pholad mollusks; 

 ophiuroids occupied the crevices, and serpulid polychaetes were attached 



