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. 43 7 ; 
Thorpe, Mar. Conch. 62 ; Brown, III. C. 102. 133. t. 39. f. 34 ; 
Forbes fy 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. SfMag. N . H. 
xix. 314. 
Hob. ? 
2. Diodonta. 
Diodonta, Besh. Exp. Alger, t. 68; Forbes fy Hanley, Brit. Moll. i. 
283 (notDidonta, Schum. nor Diodonta, Agassiz, Nomenclat.). 
Petrieola, sp., Lamk. Hist. 
Psammotsea, 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; Billw. 
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. 
Petrieola 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. 
xx vi. 
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. 1 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 fy Hanley, Brit. Moll. 286, note. 
a — c. Bantry. 
