210 



ALLAN HANCOCK PACIFIC EXPEDITIONS 



VOL. 19 



Numbers of species and specimens totalled : 

 polychaetes 46 species, 512 specimens 



Total : 



69"^ species, 647 specimens 



3. Sta. 5808 (near no. 30), in 5.8 fms. OPG took 2.52 cuft of dark 

 olive-green silt with many animals. Wet weights totalled 87.6 grams, of 

 which polychaetes comprised 64.1, mollusks 17.5, nemerteans 4.5, and 

 anemones 1.5 grams. A ceriantharian with dark purple stalk and red 

 crown ( 1 ) , a small anemone ( 3 ) , Qerebratulus rubra ( 1 ) , a small 

 nemertean (3), a phoronid (2), and an ostracod (3) accompanied the 

 species named on the chart. Largest individuals were Solen sicarius and 

 Cerebratulus rubra. Most conspicuous were Diopatra tridentata and 

 Compsomyax subdiaphana, and most abundant were Marphysa disjuncta 

 (57), Tharyx tesselata (55), Pectinarta calif orniensis (34), and Chaeto- 

 zone corona (32). 



Numbers of species and specimens totalled : 

 polychaetes 33 species, 328 specimens 



Total 



65 species, 425 specimens 



4. Sta. 2508 (no. 29), in 6 fms. OPG took 2.56 cuft of black mud 

 and clay with many animals. A sea-whip (2), ?Harenactis (1), a nemer- 

 tean (3), an amphipod (5), a pinnotherid (1), were present in addition 

 to those listed on the chart. Largest individuals were Marphysa dis- 

 juncta and Glycera americana. Most abundant species were Tharyx tes- 

 selata (301), Cossura Candida (24) and Lumbrineris ^zonata (20). 



