374 



ALLAN HANCOCK PACIFIC EXPEDITIONS 



VOL. 19 



Numbers of species and specimens totalled ; 



polychaetes 

 echinoderms 

 mollusks 

 crustaceans 

 others 

 Total : 



34 species, 



7 

 5 

 4+ 

 3 



77 specimens 



110 



5 



11 



11 



53"^ species, 214 specimens 



4. Sta. 3581, in 100 fms. OPG took 1.76 cuft of grayish green, sandy 

 mud with shell fragments, mucoid debris, and many animals. In addition 

 to those named in the chart, there was a nemertean ( 1 ) , a sipunculid 

 (1), amphipods (12), an anthurid isopod (1), and an ostracod (1). 

 The largest species was Nephtys glabra (weight 53 grams), and the 

 most numerous was Amphioplus strongyloplax (25). 



Numbers of species and specimens totalled : 



polychaetes 38 species, 104 specimens 



mollusks 6 6 



echinoderms 6 Z3 



crustaceans 3"^ 14 



others 2 2 



Total: 55"^ species, 159 specimens 



Farnsworth Bank 



1. Sta. 3594, in 16 fms. OPG took a fraction of a rocky shoal, with 

 hydrocorals, bryozoans, red algae and many associated animals. Note- 

 worthy were ophiuroids, snapping shrimps, many amphipods associated 

 with algae, many branches of salmon-pink, fenestrated bryozoans, Phi- 

 dolophora pacifica, purple hydrocoral, Allopora californica with com- 

 mensal gastropod, Pedicularia californica, and many other animals. In 

 addition to those named in the chart, there were present also a nemer- 

 tean ( 1 ) , a sipunculid ( 1 ) , a polyclad ( 1 ) , a caprellid ( 1 ) , isopods 

 (10"^), tanaids (2), an epinebalian (3), small crabs (2+), and a pycno- 

 gonid (3). Some of the bryozoans are named elsewhere (see list of bryo- 

 zoans, identified by Mr. William Banta). The total numbers of species 

 and specimens are not estimated, but are expected to be much higher than 

 that in adjacent soft-bottoms, because of the larger numbers of epifaunal 

 animals. 



2. Sta. 3595, in 16 fms. OPG took 0.47 cuft of coralline nodules, 

 with green Ulva, many bryozoan clusters, broken shells of large Hin- 

 nites, Astarte, Astrea, slipper limpets, many large fragments of dead 

 hydrocorals, and dead shells penetrated by boring sponge. Animals were 



