BRITISH MOLLUSCA. 
37 
P. florida, Turt. Biv. 86. t. 6. f. 9 (not Lam.) ; Flem . B.A. 437. 
a — c. Bantry Bay. 
d, e. Scotland. 
f — p. Britain. 
4. PSAMMOBIA COSTULATA. 
Psammobia costulata, Turt. Biv. 87. t. 6. f. 8 ; Flem. B. A. 437 .; 
Thorpe, Mar. Conch. 62 ; Brown, III. C. 102. 133. t. 39. f. 34 ; 
Forbes Sf Hanley, Brit. Moll. i. 279. 1. 19. f. 5 ; Philippi, Moll. 
ii. 21 ; Neu Conch, t. 1. f. 3, 4. 
P. discors, Philippi, i. 23. t. 3. f. 8 ; Jeffreys, Ann. Sf Mag. N. H. 
xix. 314. 
Hob. ? 
2. Diodonta. 
Diodonta, Desh. Exp. Alger, t. 68; Forbes Sf Hanley, Brit. Moll. i. 
283 (not Didonta, Schum. nor Diodonta, Agassiz, Nomenclat.). 
Petricola, sp., LamJc. Hist. 
Psammoteea, sp., Lamk. Hist. 
Psammobia, sp., Turton, Bivalves, 88 ; Brown, III. C. G. B. 
1. Diodonta fragilis. 
Tellina fragilis, Linn. S.N. 1117 ; Chemn. Conch, vi. 95. t. 9. f. 84 
Turt. Conch. Diet. 166. f. 18; Poli, t. 15. f. 22, 24; Dillw. 
R. S. i. 78 ; Wood, Cat. t. 3. f. 7 ; Philippi in Wiegm. Arch . 
Natur. 1845, 190. t. 7 . f. 19, 20 ; Anim. Moll. Sicil. i.27,ii.22. 
Psammobia fragilis, Turt. Biv. 88. t. 7- f- 11, 12; Flem. B. A. 
438 ; Thorpe, Mar. Conch. 62. 
Tell, jugosa, Brown, Wern. Trans, ii. 506. t. 24. f. 2. 
Psammobia jugosa, Brown, III. C. 1. 16. f. 4, 5, 6. 
Petricola ochroleuca, Lamk. Hist. vi. 157 ; Payraud. Cors. t. 1. 
f. 9, 10; Sow. Gen. f. 4 ; Desh. Elem. 1. 12. f. 13 ; Thorpe, M. C. 
xxvi. 
Peronaea sanguinolenta & Peronaeoderma fragilis, Poli, ii.252, 257 . 
Psammobia Tarentina, Lamk. Hist. vi. 183 ; Deless. Rec. Coq. 
t. 5. f. 11. 
Tellina ochroleuca, Wood, Cat. Supp. t. 1. f. 6. 
Diodonta fragilis, Desh. Exp. Algerie, Moll. t. 68, animal ; Forbes 
Sf Hanley, Brit. Moll. i. 284. t. 21. f. 2, t. K. f. 2, animal. 
Junior? Tellina polygona, Mont. T. B. Supp. 27. t. 28. f. 4, 
cop. Wood, Cat. t.4. f.80, and Brown, III. Conch. \ 02. t. 39. f.33; 
Turt. Diet. 180; Thorpe, Mar. Conch. 63 B; Penn. B. Z. 
ed. 1812, iv. 185. no. 25. 
Psammobia polygona, Turt. Biv. 96 ; Flem. B. A. 439. 
T. Guinaica, Dillw. R. S. i. 96. 
Diodonta fragilis, junior ? Forbes Sf Hanley, Brit. Moll. 286, note. 
a — c. Bantry. 
