The following stations in Zone I-W are analyzed: ^^ 



1 at 3480, 2 at 3484^ 3 at 3483, 4 at 3486, 5 at 3489, 

 6 at 2993, 7 at 3492, 8 at 3496, 9 at 2994, 9a at 4329, 

 9b at 4331, 10 at 3497, 10a at 4330, 10b at 4335, 11 at 3391, 

 11a at 4332, between 11 and 15 at 3257, 12 at 3394, 12a at 4334, 

 12b at 4328, 12c at 4325, 12d at 4324, 13 at 2995, 13a at 4326, 

 13b at 4327, 14 at 3392, 14a at 4333, nr 14 at 3542, between 14' 

 and 15 at 3539, 15 at 3195, 15a at 4323, 16 at 3389, 17 at 2996, 

 17a at 4318, 17b at 4322, 18 at 3194, 19 at 3393, 19a af432l, 

 19b at 4320, 19c at 4319, 20 at 3388, 21 at 2998, 22 at 3387. 



I W-1. Sta. 3480-55., In 58 feet, OPG took 1.19 cuft of greenish 

 beach sand, most of which failed to pass through the screens. The 

 animals were floated out of the debris in the laboratory. 

 Prochordate , Branchiostoma calif orniense - 2 ' individuals 

 Echinoderms include; Amphipholis squamata -l, Ophiouroconis bispinosa -l 

 Crustaceans includes Lepidopa myops (sand crab) -3 and amphipods- 14 

 Mollusks includes Olivella -7, Nassarius -1, ? Aglaja -1 

 Nemerteans- 2 smaller 

 Nematodes- several 

 Polychaetes include; 



Nep htys californlensi s - 15 moderately large 



Teiepsavus spc, :;;_ -— .- 1 in tube 



Hypoeulalia sp,- many 



Dorvillea gracilis - many 



Spiophanes sp.- 3 



Glycera sp.- 1 small 



Armandia sp.- 1 small 

 SUMMARY.- The faim.a is that of a shifting sandy beach extending into 

 Intertidal areas. The volume of organic materials is about 70 ml. 



I W-2. Sta. 3484-55. In 100 feet. OPG took 0.44 cuft of fine 



black mud with HgS odor» Most of the sediments passed through the 



screens. The animals are diversified with polychaetes the most abundant. 



Echinoderms includes 



Astropecten californicus - 1 medium sized 

 Amphiodia (Ainphispina ) urtica - 6 

 a small holothuroid 



Crustaceans include: a few amphipods, isopods, a pinnixid crab (per- 

 haps commensal of a maldanid), and some cumaceans 



Mollusks include? a small living Conus californicus and a dead 

 shell of moon snail 



Nemerteans- a few small only 



Nematodes- some 



Polychaetes include larger individuals of: 

 Diopatra ornata - 1 larger 

 Nephtys caecoides - 2 or more 



Nothria elegans - 10 or more in thin, sand-covered tubes 

 Glycera americana - 1 ; and smaller individuals of: 

 Ancistros'yllis sp,, Aricidea spp., capitellid, cirratulids, 

 Drilonereis , Eumida , Exogoninae, Goniada , Haploscol op los elongatus , 

 HarmothoS Ixmulata var., Laonlce, Leocrates , L umbrineris , 

 Magelona , maldanid. Nereis procera , P herusa , Phyllodoce , Podarke , 

 Prionosplo pinnata and other kinds, Sthenelais , Syllis , Tharyx 

 and others. 



