SCROBICULARIA. 329 



northwards to the Dudgeon, but not farther (Thomas) ; 

 Swansea and Langland Bay (Jeffreys) ; near Langharne 

 (S. H.) ; Cork (Humphreys) ; " in suitable places on each 

 side of the Irish coast" (Thompson) ; Clyde (Smith) ; 

 Skye and Frith of Forth (E. F.). 



SPURIOUS. 



Amphidesma reticulatum, Linnseus. 



Tcllina reticulata, LiNNiEus, Syst. Nat, ed. 12, p. 1119. — Linn. Trans, vol. viii. 



p. 54, pi. 1, f. 9.— Dorset Catalog, p. 30, pi. 5, f. 4.— Turt. 



Conch. Diction, p. 174. — Chejin. Conch. Cab. vol. vi. p. 124. 



pi. 12, f. 118.— Wood, General Conch, p. 182, pi. 42, f. 2, 3. 



DiLLW. Recent Shells, vol. i. p. 470. — Index Testaceol. pi. 



4, f. 70. 

 Tellina ■proficua, Pulteney, Hutchins, Dorset, p. 29, pi. 5, f. 4. — Mont. Test. 



Brit. p. 66. 

 Amphidesma reticulatum, Sowerby, Genera Shells, Amphid. f. 2. — Crouch, In- 



trod. Conch, pi. 4, f. 9. — Sowerby, Conch. Man. f. 85. — 



Desk. Encj'cl. Method. Vers, vol. ii. p. 25. 



Suborbicular, a little oblique, moderately strong, somewhat 

 translucent near the beaks, moderately convex, umbones and in- 

 terior rich yellow, elsewhere white ; surface with moderately close 

 set concentric little elevated lamince (usually obsolete above), the 

 interstices of which are delicately radiated with very small 

 raised wrinkles. Lower edge strongly arched, ascending poste- 

 riorly : beaks curved forward, subcentral. Dorsal edges very 

 moderately sloping, the front one straightish, the hinder one 

 decidedly convex or subarcuated. Both extremities rounded, 

 the posterior one rather obtusely. Two small primary and two 

 short strong approximate lateral teeth in one valve ; cartilage 

 pit narrow, triangular ; hinder dorsal area with a slight and 

 narrow depression. Diameter an inch and a quarter. 



A native of Brazil (?), introduced hy Dr. Pidteney as taken at 

 Poole and Weymouth. 



VOL. I. U U 



