421 
St. 1 to 9 and St. 36 are situated on the slope from the plateau 
of the Channel to the deep basin of the Atlantic where the bottom 
is abruptly shelving downwards. St. 33 lies on the platform south 
of Ireland, about 35 miles from the 50 fathom-line. 
it must be added that the ,,Travailleur" and the ,,Talisman"” 
have also dredged a great deal of shallow-water shells at great 
depths in the Biscaya; thus, e. g. ÅAstarte banksi at 392 meters 
(3 fossil valves. Range 5 to 100 or 200 m.),. . Modiolaria mar- 
morata, Forbes, at 1092 meters (sublittoral), Hydrobia ventrosa at 
1960 m.'s (littoral), and Venus rudis at 2285 m.'s (sublittoral). 
N lat 35%805-40-N-lat 
IV. West of the Iberic Peninsula. 
437. ,,Porcupine" Exp. 1870. 
| Depth where Range 
i AA of the living 
SR molluscs in the Remarks. 
shells North-East 
occurred. Atlantic. 
fms. 
Aporrhais pes pelicani, Linné | St.11. 33 sublittoral 
Mactra subtruncata, Da Costa | St.13. 220 | 5—165 B.M. 
Solecurtus antiquatus, Pul- 
Konay ES SOS SEE 10 va TED 5—50 
Pecten pes lutræ, Linné …. | St.16. 994 |10—420 B. M. 
Portlandia intermedia, M. 
RR — — | [3—500 fms.] | 5 fossils valves of adult 
Calyptræa chinensis, Linné., | — ,. —.| 1—20 B,M.. . specimens, 
Pecten pes lutræ, Linné ..… |St.17. 740-1095' 10—420 B. M. 
Cardium aculeatum, Linné.. | — — 2—20 
Målleria costulata, Måller ... | — — prob. sublitt. 
Venus fasciata, Da Costa... | St.22. 718.| sublittoral 
Fissurella graeca, Linné.... | St: 24. 292 |  sublittoral 
1) Its southern limit is Iceland and Finmarken in Norway. Its Range 
in the North Polar Basin is according to Leche (1883 1. c.) and 
A. 8. Jensen (1900 1. c.) 3—500 fms. 
