Fig. 17. TELLINA lineata, 
Tkllina lineata, Ttirton's Conch. Did. j). 168, pi. 4, fig. 16.— Found at Torbay. 
Fig. 18. TELLINA fabula. 
Tkllina fabula, Monl. Test. Brit. p. 6I. — Mai. mid Back, in Linn. Trans, viii. p. 52 — Brown in Ency. Brit. vi. 
p. 407. 
Fig. 19. TELLINA tenuis. 
Tkllina tenuis, Monl. Test. Brit, p 59. — Mat. and Rack, in Linn. Trans, viii. p. b2.-'D6n. Brit. Sli. pi. 19. 
Fig. 20, 21. TELLINA elliptica. 
Tellina elliptica. Brown's MSS — A new species. Found at Dunbar by General Bingham. 
Fig. 22. TELLINA pellucjda. 
Tellina pellucida. Brown's MSS. — A new shell. Found by W. C. Trevelyan, Esq. at Seaton, county of Dur- 
ham.— In the cabinet at Walliugton. 
Fig. 23. TELLIMYA substriata. 
Tellimya substriata. Brown's MSS. 
Ligula substriata, Mont. Test. Brit. .^irp. r^. 2r). 
Fig. 24. CRASSINA corrugata. 
Crassina corrugata. Brown's MSS. — A new species. Found at Greenock by Stewart Ker, Esq. — In Lady Jar- 
dine's cabinet- 
Fig. 25. MACTRINA triangularis. 
Mactrina triangularis. Brown's MSS. 
Mactra triangularis, Mont. Test. Brit. p. 99, pi. 3, fig. 5. — Mat. and Rack, in Linn. Trans, viii. p. 72 
Fig. 26, 27. HIATELLA striata. 
Hiatella striata, Brow7i's MSS. 
Mya striata, Montagu in Linn. Trans, xi. p. 188, pi. 13, fig. 1. A. — Ttirton's Conch. Did. p. 105, pi. 28, fig. 99. 
Although this shell and the Magdala striata, pi. 11, fig. 1, 2, have been supposed the same shell by some authors, 
yet I have considered it necessary to institute new genera of them. I conceive it impossible that so accurate an 
observer as Colonel Montagu could have seen the Magdala striata, (Mya Norwegica of authors,) because that shell 
has no tooth, but is furnished with a detached horizontal plate, (see Plate II, fig. 10,) wliich is attached to each 
valve by a cartilage ; and I of course consider tlie above shell as a distinct genus, from its having a fixed tooth 
in one valve ; and if Montagu's figure is correct, from which I have copied the above, the tooth is quite diflferent 
in shape from the plate of the M. striata. 
