90 



Dlopatra ornata - 3 larger and 6 smaller, weight with tubes about 



43 grams 

 Dorvlllea artlculata - 1 

 Eumida - 1 

 Gonlada - 5 

 Halosydna - 2 



Haploscoloplos elongatus - 7 

 Leocrates = 3 



Liimbrlneris cruzensls - 26, some ovlgerous 

 Lumbrineris , larger species - 1 

 Magelona ^ pouched - 20 or more 

 Nephtys ferruglnea - 6 larger 

 smaller Nephtys - 9 

 Nereis procera - 36 or more 

 Nothrla elegans - 35 or more | the longest tube measures about 30 



30 cm| total weight with tubes is 34.2 grams 

 Platynereis bicanaliculata - 6 

 Tharyx ? parvus - 5 

 SUMMARYo- The largest animal is Diopatra ornata, the most conspicuous 

 is Nothria elegans » The sample is estimated to have about 45 

 species and 350 individuals o 



I SW-4» Stao 3478-55o In 78 feet. OPG took 0.25 cuft of black 



sandy mud with a slight odor of HgS, The screenings consisted of less 



than half a pint of materials, including a larger seastar and other 



animals which were largely polychaetes. 



Echlnoderms include: 



Astropecten calif ornicus -1, measuring 85 mm to tips of arms and 



18 mm across the disk, and 2 arms of another individual 

 ophluroids- 2 arms only, no disks 



Crustaceans includes 



amphipods- 5 (one carries 2 embryos, another is an oedocerotld) 



cujnaceans - 3 



ostracods- 2 brown and 2 with sculptured 



Mollusks are few and Include; 



Cadulus - 1 small Tellina - 3 



Nassarius =■ 1 small shell fragments of others 



Glottidla alblda - 2 small 



Nemerteans - one moderately large and several minute ones 



Sipunculid - 1 small 



Polychaetes include; 



ampharetld - 1 tiny maldanid - 1, in sandy tube 



Aricidea - 3 Nephtys - 1 large and 1 small 



Chaetozone - many small Nereis procera - 2 



Glycera - 7 small Nothria elegans - 6 or more 



Haploscoloplos elongatus - 12 Pherusa - 1 juvenile 

 hesionld - 1 small phyllodocid - 1 juvenile 



Laonice ~ 1 polynoid - 1 juvenile 



Lumbrineris t cruzensis - 3 Prionosplo , nr. malmgreni - 19 

 Magelona , pouched - 18 Tharyx ? parvus - many 



SUMMARYo= The sample is characterized by the presence of many smaller 

 polychaetes and Astropecten o Total volume of organic matter, ex- 

 cluding the seastar, is 5 drams. 



