86 THE DEPTHS OF THE SEA. [CHAP. IIT. 
the specimens procured. Both remained with us the 
whole summer. 
The first cruise of the ‘ Porcupine’ under the scien- 
tific charge of Mr. Gwyn Jeffreys commenced on the 
18th of May and ended on the 183th of July. It ex- 
tended for a distance of about 450 miles along the 
Atlantic coasts of Ireland and Scotland, from Cape 
Clear to Rockall; and included Lough Swilly and 
Lough Foyle and the North Channel to Belfast. 
The first dredgings were made about 40 miles off 
Valentia, in 110 fathoms water with a bottom of 
mud and sand. The result of this dredging gives a 
fair idea of the fauna of the 100-fathom line on the 
west coast of Ireland. The mollusca are mostly 
northern species, such as Neera rostrata, SPRENGLER ; 
Verticordia «abyssicola, JEFFREYS; Dentalium abys- 
sorum, SARS; Buccinum humphreysianum, BENNETT ; 
and Pleurotoma carinatum, Bivona. Some however, 
as Ostrea cochlear, Pout; Aporrhais serresianus, 
Micnuaup; Wurexr lamellosus, CRIStOFORI and JAN ; 
and Trochus granulatus, Born,—are Mediterranean 
forms, and impart somewhat of a southern character 
to the assemblage. Cidaris papillata, LeskE; Lehi- 
nus rarispina, G. O. Sars; £. elegans, D. and K.; 
Spatangus raschi, Loven; and several varieties of 
Caryophyllia borealis, FLEMING, were abundant: 
but these species seem to abound at a depth of from 
100 to 200 fathoms from the Mediterranean to the 
North Cape. 
After coaling at Galway they proceeded southwards, 
and as the weather was very rough and unpromising 
they dredged in shallow water, from 20 to 40 fathoms, 
in Dingle Bay: and the next week, with improving 
