104 CONCHIFERA. DIMYAIKA. 



T.fabula, Gmel. Shell ovate-compressed, transparent,, white, slightly 

 produced and inflected at the anterior end ; one valve smooth, 

 the other obliquely striated. About J inch long and ^ broad. 

 Northern coasts of Europe Wood's Conch, pi. 45, fig. 4. 

 This species is extremely plentiful on the coast at Portobello, near Edinburgh. 



T. tennis, Mont. Shell oval-triangular, finely striated transversely, 

 compressed ; colour reddish, with generally deeper bands. Half 

 an inch long by three quarters broad. Inhabits British coasts. 

 Penn. Brit. Zool. pi. 51, fig. 2. 



** Shell orbicular. 



T. crassa, Penn. Shell roundish, with crowded transverse grooves, 

 one valve flatter than the other ; colour white or yellowish, with 

 sometimes reddish rays. 1^ inch long. Inhabits British coasts. B. 

 Pen. Brit. Zool iv. pi. 51, fig. 1. 



T. lingua-fells, Lin. Shell subovate, rough, covered with lunated 

 scales disposed in a quincunx order ; colour white, with pale pink 

 rays ; umbones of a fine pink colour. ] J inch long. Inhabits 

 Indian seas Klein, Ost. pi. !!_, fig. 62. 



T. solidula, Mont. Shell suborbicular, convex, thick, somewhat 

 angulated at the anterior end, with minute transverse striae, and 

 distant obsolete ridges of growth ; colour white, or yellow, tinged 

 with pink, f inch long. Inhabits European seas. B Penn. Brit. 

 Zool. pi. 52, tig. 2. 



This species is extremely common on the coast at Musselburgh, near Edinburgh. 

 Fossil Tellinae are found in Britain in Crag, London clay, and green sand. 



3. Solenaires, Lam. 

 Gen. 33. PSAMMOT^A, Lam. 



Shell transverse, oval or oval-oblong, slightly gaping on the 

 sides ; a single primary tooth in each valve, sometimes in one 

 valve only ; ligament exterior. 



P. violacea, Lam. Shell ovate-oblong, subventricose, radiated with 

 white ; striae transverse. 2 inches broad. Inhabits seas of New 

 Holland Lam. v. 517- 



P. zonalis, Lam. Shell ovate-oblong, flattened, yellowish white, with 

 transverse livid zones. If inch broad. Lam. v. 517. 



P. Candida, Lam. Shell oval-oblong, slender, pellucid, anterior side 

 angulated, with minute transverse striae, and some longitudinal 

 rays ; primary tooth in each valve bifid. 2 inches broad. Inhabits 

 seas of New Holland Lam. v. 518. 



Gen. 34. PSAMMOBIA, Lam. Tellina, Gmel. 

 Shell transverse, elliptical or oval-oblong, flattened, slightly 

 gaping on each side, and the beaks projecting ; hinge with 

 two teeth in the left valve, and one in the opposite valve. 



P. Ferroensis, Lam. Shell ovate-oblong, compressed obliquely, trun- 

 cated posteriorly, and finely striated transversely ; hinge without 



