422 
Denth 
where 
Range 
the dead 
of the living 
molluscs in the 
Remarks. 
shells 
North-East 
occurred. 
Atlantic. 
fms. 
% 
Trochus zizyphiniis, Linué .. 
St. 25. 
374 
sublittoral 
Solen vagina, Linné. 
off Cape Sagres. 
0-10 
Fragm., the greatest being 
45-58 
ca. 30 mm. in length. 
Pecten opercularis, Linné . .. 
St. 26. 
364 
5-100 B.M. 
Venus casina, Linné. 
— 
— 
sublittoral 
Venus fasciata, Da Costa.. .. 
— 
— 
sublittoral 
„Valve‘‘. 
Amphidesma cornea, Poli. .. 
— 
— 
0-2 
> 
Solen vagina, Linné. 
— 
— 
0-10 
„Fragments". 
Thracia papyracea, Poli .... 
— 
—- 
10-75 B.M. 
Tectura virginea, Muller. . . . 
— 
— 
sublittoral 
Emarginula rosea, Bell. 
— 
— 
sublittoral 
One little, probably fossil 
specimen, and a fragm. 
Trochus cinerarius, L. 
— 
— 
sublittoral 
Phasianella pulla, Linné .... 
— 
— 
1—15 
„Young and dead shells". 
Kissoa membranacea, Adams 
— 
— 
litt. or sublitt. 
Cerithium tuberculatum, L.. 
— 
— 
litt. or sublitt. 
„Fragment". 
~ reticulatum, Linné 
— 
—■ 
sublittoral 
s 
Thracia papyracea, Poli .... 
St. 28. 
304 
10-75 B.M. 
Mactra, subtruncata Da Costa 
St. 30. 
380 
5-165 B.M. 
Cerithium reticulatum, L... . 
— 
— 
sublittoral 
The named finding places for these molluscs are all situated 
on the slope off the west-coast of the Iberic Peninsula. The bottom 
descends here very rapidly to great depths. The distance to the 
100 fathom line is generally very short: 
from St. 11, 17, 17 a, 24, 25: 5 to 10 miles, 
from St. 16, 22, 26, 28 a: 10 to 20 miles. 
It can be added that also the „Challenger“ and the „Travailleur“ 
have dredged shallow-water shells at great depths west of the 
Iberic Peninsula. A few examples may here be given; 
