BRITISH MOLLUSCA. 
99 
2. Diplodonta. 
Mysia, part, (rotundata), Leach, MSS . 1818, Ann. fyMag. N. H, 
xx. 27 2; Brown, III. Conch. G. B. 1827; Conrad, Tert. Foss. 
30, 1838; Gray, Syn. B. M . 1840; P. Z. 8. 1847, 195 ; Menke, 
Syn.e d. 2. 112, 1830; Des/L P.M. iii. 593. 
Psammobia, sp., Fleming, B.A. 438. 
Diplodonta, sp. (rotundata), Philippi, Sicil. i. 31, 1836, ii. 24, 
1844; Forbes 8f Hanley, Brit. Moll. ii. 66. 
? Egeria, sp.. Lea , Contrib. Geol. 49, 1833. 
Loripes, sp., Cuvier, R. A. 
Diplodonta (Lnpinus), Bronn, Ital. Tertiargeb. 9, 1831 ; Leth. 
962, 1838; Nyst, Coq. Foss. Belg. 138, 1846. 
? Sphserella (subreflexa), Conrad, Tert. Foss . 1838. 
1. Diplodonta rotundata. 
Tellina rotundata, Mont. T.B.7 1. 1. 2. f. 3 ; Linn. Trans, viii. 56 ; 
Dorset Cat. 30. t. 5. f. 8; Turt. Conch. Diet. 176 ; Brit. Faun. 
151. no. 214; Wood , Gen. Conch . 187 ; Dillw. Rec. Shells, i. 
99 ; Ind. Test. t. 4. f. 77- 
Psammobia rotundata, Flem. B.A. 438. 
Lucina lactea?, Desh. E. M. Vers, ii. 374. 
Lucina rotundata, Turt. Biv. 104. t. 7- f. 3 ; Thorpe, Brit. Mar . 
Conch. 73; Desh. Exp. Moree; Brown, III. Conch. G.B. 98. 
t. 40. f. 11; Hanley, Rec. Shells, i. 76. 
Tellina undata, Pulteney, Dorset, 30. 
Mysia undata, Leach, MSS. 1818. 
M. rotundata. Brown, III. C. t. 16. f. 11. 
M, Montagui, Leach, MSS. 1818, Ann. 8f Mag. N. H. xx. 1847, 
272. 
Diplodonta rotundata, Philippi , Sic. ii. 24 ; Forbes 8f Hanley, 
Brit . Moll. ii. 66. t. 35. f. 6 ; t. M. f. 7, animal. 
D. dilatata, Philippi, i. 31. t. 4. f. 7 . 
Loripes rotundata, Cuv. Reg. An. ed. Crock, t. 103. f. 4. 
Yenus fragilis (fossil), Nyst £f West, Bull. Brux. vi. 401. t. 3. 
£.11. 
a — e. Tenby. 
f—j. Dublin Bay. Presented by T. Warren, Esq. 
k, l. Bantry Bay. 
m. Ditto. Presented by Miss Warne. 
n — t. Tenby. 
3. Thyatira. 
Thyatira, part, (dexuosa), Leach, MSS. 1818, Ann. Mag. N. H, 
xx. 1847, 272; Jeffreys, Conch. Mag.yo 
Tbyasira (flexuosa), “Leach,” fide Lamk. Hist. vi. 492, 1818, 
ed. 2. vi. 228; Gray , P. Z. S. 1847, 195. 
