Worms. TESTACEA. 6o. Maara. 
2o9 
Inhabits— -—GW/, /«/. tab^ 84 fg. A, , 
brittle pellucid, greenilh-white, with fometimes a few rofy 
fpdts, within filvery. 
ohell rounded, whitifh with a brown band : the ribs acute. 
Inhabits — Knorr. Perga. 6 . tab. 
Ihnge brown and cinereous on the cfutiide, 
^0. iMiiCTRA. Animal a Tethys : yZi*?// bi- 
valve, vincqual ikied, equivalve: middle 
tooth of the hinge complicated, Avitb a 
llnail liolloAV each fide, lateral ones re- 
mote and infertcd into each other. 
Shell frabotfi, with a flat anterior margin on which is a 
lunate gape. 
Cbemi cauc. 6 . tab. 20. fig. 199 — 201. 
^beagl. Cata^. tab. 3.9%. 1 — 3. Schrcct. Lilt. l. fig. — 6, 
Inhab.its the Cape of geod HoH : nearly as large as a man’s hand; 
a little gaping, pale, lubdiaphannuf, fubtriangidar, 3 \ inches 
broad; the anterior fide fubcarinate, the pollerior flactifh and 
ftriate: gape bcf-re the hinge lur.ate acute and reaching to 
the hollow of the hinge: bedks incurved': iritcra! teeth of fiat 
hinge triangular. 
Shell with tranfverfe wrinkled plaits, diaphanous: anterior 
margin flattlih : behind the beaks a comprefTed oblong 
gape, 
Chemn. cone. 6. tab. 20 fig, 2OZ-.204. 
I'l.haojt? x.\\c Ind.aa Ocean : l-z inches long, 2 i broad. 
■S/Wthin like paper, with fmoath Janccolate depreffions each 
fide the hinge, ttie anterior one flattifh with a ridge near the 
beaks, the polierior one imprefled and more ovate: beaks in- 
curved recurved : lateral teeth of the hinge compofed of 2 
parallel membranes. 
Shell very thin pellucid white convex, the fore-part a little 
gaping, very finely (Iriate and ribbed. 
Ohemn. cone, 6. tab. zt,.fig. 23, 
Inhabits hiicobar Ijlands, extremely rare; refemblcs the laft, but 
is more convex and unequal lided: except in the hinac. is 
very like a Tellina. 
VOL. IV.— D d 
Striatula. 
