TELLINA. TELLEN. 
1/9 
lie posterior side, thin, brittle, semitransparent, white but 
not glossy, with regular but not very close striae, which in- 
cline obliquely upwards towards the posterior edge and 
: tin obtuse curves, which divaricate at their base on both 
lie sides, forming nearly right angles, so that the lateral 
extremities appear striate in opposite transverse direc¬ 
tion^ the surface is also marked with a few concentric 
L’.es : beaks central, very prominent, the cartilage margin 
riming in nearly a straight direction : inside glossy white, 
ri!h the margin plain: in one valve a single cloven primary 
fcth, locking into two plain ones in the other, with a 
Averse groove extending beyond them; the lateral 
teeth remote and very minute: diameter half an inch, 
h Falmouth harbour, and at the Land’s end, Cornwall: 
tchve also found it in Tcignmouth bay. v. m. 
29. Tellina suborbicularis. Orbicular Tellsn. 
Myasuborbicularia. Montagu, pi. 26. f. 6. 
Shell somewhat globular, semitransparent, ycllowish- 
Toicc, often covered with a brown skin, rather glossy and 
Meeting metallic colors, with mostly a large lucid spot on 
all side below the beaks, finely striate transversely, both, 
fa sides nearly equal and rounded, with the front margin 
diier straight, and closed allround: beaks central, pro mi¬ 
nt, pointed, a little turned to one side; inside chalky-' 
vie,except the lucid spots of the connecting cartilage : 
!kge with a single recurved tooth in one valve, locking 
teen two in the other, and placed immediately under 
::rather behind the points of the beaks, besides a lamellar 
d somewhat remote tooth placed longitudinally in each 
dre: length three eighths of an inch ; breadth half an 
2tij. 
From its great similarity to T. cornea, and its being fur- 
died with lateral teeth, wc have no hesitation in placing 
r. in this genus. 
Devon coasts, and Dublin bay; often imbedded in hard 
roestone, and frequently among masses of the Serpula tu- 
we have also sometimes found it inclosed in the 
Vdlves of the Area perforans. v. v. 
* & Tellina cornea. Horny Tellen. 
L'dcr, pi. 159. f. 14— Pennant, pi. 52. f. 3— Da Costa , 
pi. 13. 
