NO. 9 MARINE INVERTEBRATES, ALASKA — MacGINITIE 73 



suhgracile (C); Lichenopora verrucaria (A). Polychaetes — Syllis 

 jasciata, 15; Chone infutidibuliformis, 5; Spirorhis spirillum, 13. 

 Asteroids — Leptasterias arctica, i. Echinoids — Sfrongylocentrotus 

 drobachiensis, seyeral. Cirripedes — Balanus crcnatiis (young) (AA). 

 Isopods — Janiralata sp., 4; Munna sp., 3. Amphipods — Metopa cly- 

 peata, 5 ; Proboloides nordmanni, 3 ; Ericthonitis tolli, 15 ; Eurystheus 

 melanops, 6; Ischyrocerus latipes (C) ; /. commensalis, 3. Pelecy- 

 pods — Mttsculus corrugatus, 4; Hiatella arctica (A). Gastropods — 

 Plicifiisus verkruzeni, 3 ; Neptunca sp., 2 ; Natica clausa, 3 ; Marga- 

 rites vahli, 7. Tunicates — Didemnum albidum, 14; Boltenia echi- 

 nata, 5 ; 5. ovijera, 23 ; Halocynthia aurantium, 2; Molgula griffithsi, 

 4; Molgula sp. No. 2 (A). 



Station 34 was in the shoreward part of the mud zone and yielded 

 Httle besides holothurians — Myriotrochus rinki (AA). 



Station 35 was in the rubble zone but, compared with other areas 

 with similar bottom, its animal life was relatively sparse as far as 

 individuals were concerned although there were a large number of 

 species. Many of the stones and rocks were porous and brittle, and 

 some were riddled with holes and tunnels that provided refuge for 

 polychaetes. Only a very few live snails were found at this station, 

 and Foraminifera, usually abundant on such bottoms, were very 

 scarce. Amphipods were also scarce, probably because of the scarcity 

 of hydroids and bryozoans. Animals collected were : Anthozoans 

 (octocoral) — Eunephthya rubijormis, few. Turbellarians — Notoplana 

 atomata, 3. Brachiopods — Hemithyris psittacea, 11; Diestothyris 

 spitsbcrgensis, 3. Bryozoans — Eucratea loricata (C) ; Dendrobeania 

 murrayana (C) ; Microporella arctica, few; Smittina bella (C) ; Pro- 

 boscina incrassata (C) ; Lichenopora verrucaria (A) ; Flustrella 

 corniculata (A) ; Vesicularia jascicitlata, n. sp., few. Entoprocts — 

 Barentsia gorbunovi, few. Polychaetes — Gattyana cirrosa, 10; Sa- 

 bella crassicornis, 3; Syllis jasciata, 18; Cirratulus cirratus, 14; Capi- 

 tella capitata, 9. Echinoids — Strongylocentrotus drobachiensis, 

 several. Cirripedes — Balanus rostratus apertus (C). Isopods — 

 Janiralata sp., 4. Amphipods — Maera danae, 6. Decapods — Pagurus 

 trigonocheirus (C). Gastropods — Epitonium greenlandicum, i; 

 Crepidida grandis, several. Amphineurans — Symmetrogephyrus ves- 

 titus, I. Tunicates — Chelyosoma macleayanum, 4 (exceptionally 

 large) ; Boltenia ovijera, 4. 



Station 36 was a muddy area in the rubble zone. In many re- 

 spects it was like Station 32, having a soft, muddy bottom, with large 

 masses of the tubes of the terebellid Pista maculata. Several species 

 of animals, such as the bryozoans Terminofliistra membranaceo-trun- 



