NO. 1 HARTMAN, BARNARD : BENTHIC FAUNA OF DEEP BASINS 53 



{Rocinela sp.) and a small paraonid polychaete. The volume was 

 negligible. 



The photographs (Plate 2) indicate that life on the bottom includes 

 a crinoid, sea-whips, surface urchins, and burrowing forms. Addition- 

 al sampling should reveal more abundant life. 



TANNER BASIN: Analysis of a sample. 



Sta. 5120-57: 



Screenings contained many subspherical foraminiferans and some 



radiolarian tests, also a fish otolith, trace of siliceous sponge and 



some metazoans, the largest 2 individuals of Nothria. 

 Mollusks 



Cyclopecten — 3 dead valves and fragments of valve of Delectopecten 

 Echinoderm 



ophiuroid — 1 small 

 Nemertean, small white — 1 

 Polychaetes 



Arkidea (Cirrophorus) aciculata — 1 mature male 



Exogone loure'i — 1 



Nothria iridescens — 2 large, in thick mud-covered tubes 



Prionospio sp. — posterior fragment 



Terebellides sp. — 1 ovigerous adult, in mud tube 

 The photograph (Plate 1, fig. 2) indicates the presence of Florometra 

 and burrowing animals. Volume of animals 4.9 ml, largely Nothria. 

 Bio-index 8/7. 



WEST CORTES BASIN: Analysis of a sample. 



Sta. 4675-56: 



Screenings consisted of a small lot of solids with trace of siliceous 

 sponge, many subspherical foraminiferans, a dead shell of Dentalium, 

 and some metazoans, the largest and onuphid annelid. 



Sipunculid 



IGolfingia sp. — 1 larger and 1 small 



Polychaetes 



Onuphis vexillaria — 1 large and parts of another 

 Sternaspis fossor — 1 very tiny 



Volume of animals 0.8 ml (largely Onuphis). Bio-index 5/3. 



SAN CLEMENTE BASIN: Analysis of a sample. 



Sta. 4669-56: 



Screenings consisted of about 4 drams of solids, with a few meta- 

 zoans, many small black mud balls (fecal pellets), some large fo- 

 raminiferans, and empty gastropod shells, especially Spiratella. 



