266 GINGLYMACONCHA. AZORIDZ. 
Genus 15. ADASIUS. 
Shell sublinear, rounded and very widely gaping before and 
behind ; hinge in each valve with one tooth. The respiratory 
tubes are disunited at their extremities. 
The type of this genus is the Solen strigilatus of Linné. 
Apastus LoscoMBEUS. 
Shells concentrically striated, and behind the middle with 
radiating, imbricated strize ; those on the upper part are hori- 
zontal ; the epidermis pale testaceous. Besides the concentric 
strize, there are sometimes a few obsolete concentric wrinkles. 
Colour whitish. Epidermis slightly tinted with pale testa- 
ceous. 
A single specimen of this extremely interesting shell, con- 
taining its animal, and measuring three-quarters of an inch in 
length, was taken in Torbay, and forms a part of the collection 
of C. W. Loscombe, Esq., of Exmouth, who, with his usual 
liberality, permitted me to make the above description from it. 
Since writing the above, I have examined a second specimen, 
which my friend the Provost of Eton found on the Barmouth 
sands. It measures one inch three eighths im length, and 
nearly five-eighths in height; and although somewhat worn, 
agrees in its character with Mr. Loscombe’s specimen: and 
subsequently I have received two living specimens from the 
Exeter bank, off Dawlish, and have seen the shells of several 
others, none of which exceed three-quarters of an inch in length. 
‘“‘T have a specimen in my collection which I received from 
the Devonshire coast.’—T. B. 
