112 
BRITISH MOLLUSCA. 
2. Arca LACTEA. 
Area lactea, Linn. S. N. 1141; Da Costa , 171. t. 11. f. 5, 6; 
Dorset Cat. 36. t. 11. f. 5; Mat. Sf Rack. Linn. Trans, viii. 
93 ; Penn. B. Z. ed. 1812, iv. 216. t. 61. f. 2 ; Flem. B. An. 398; 
Mont. T.B. 138 ; Thorpe , Brit. Mar. Conch. 102 ; Turton , Brit. 
Faun. 160. no. 284; Dillw. Rec. Shells, i. 236; Don. B. S. iv. 
1. 135; Brown, III. Conch. G.B. 86. t. 33. f. 6; Lamk. Hist. 
2nd ed. vi. 467 ; Mawe, Conchol. t. 13. f. 4 ; Costa, Test. Sic. 
46 ; Philippi, Moll. Sic. i. 57, ii. 42 ; Hanley, Rec. Shells, i. 
154. t. 9, Arca, f. 24; Reeve , Con. Icon. Arca, t. 17. f. 116; 
Forbes Sf Hanley, Brit. Moll. ii. 238. t. 46. f. 1-3. 
Pectunculus exiguus albus, List. Conch, t. 235. f. 69 a. 
Area Pennantii, Leach, MSS. 1818, Ann. Sf Mag. N. H. xx. 272. 
Arca barbata, Penn, (not Linn.) B. Z. iv. 84. no. 60. t. 58. f. 59 
(fig. referred to A. tortuosa). 
A. crinita, Pulteney, Dorset, 35 (t. 11. f. 5). 
A. perforans, Turt. Diet. 9; Bivalves, 169. t. 13. f. 2, 3. 
A. nodulosa, Muller, Z. Dan.; Chem. vii. f. 201 (not Brocchi). 
A. lactea /3, Gmelin. 
A. scabra, Poli, Test. Sicil. ; Philippi, Moll. Sicil. 
A. modiolus, Olivi, 115; Poli, Test. Sicil. t. 25. f. 20, 21 (not 
Gmelin ) ; Costa, Test. Sic. 45. 
A. Quoyi, Payr. 62. t. 1. f. 40-43. 
A. Gaimardi, Payr. 61. t. 1. f. 36-39; Desh. Lamk. Hist. 2nded. 
vi. 476 ; Costa, Cat. Test. Sic. 46 ; Hanley, Rec. Shells, i. 155 ; 
Desh. Exp. Alger. Moll. t. 124. f. 8, 11. 
a — d. Guernsey. 
e, f. Britain. Presented by Mrs. Robinson. 
g — v. Britain. 
3. Arca raridentata. 
Arca raridentata, S. Wood, Mag. N. H . (series 2.) iv. 232. 1. 13. 
f. 4 (foss.) ; Thompson, Ann. N. Hist, xviii. 385 ; Forbes Sf 
Hanley , Brit. Moll. ii. 241. t. 45. f. 8. 
Arca Pectunculoides, Scacchi, Notiz. 25. no. 62. 1. 1. f. 12 (Phi- 
lippi); Jeffreys , Ann. Nat. Hist. 1847, xix. 313 ; Philippi, Moll. 
Sic. ii. 44. t. 15. f. 8 ; Loven, Ind. Moll. Skand. 
a — c (odd valves). Hebrides. Presented by R. M f Andrew, 
Esq. 
d — h. Isle of Skye. Presented by R. M ‘Andrew, Esq. 
4. Arca barbata. 
Arca barbata, Linn. S. Nat. (not Faun. Suec.), ed. 12. 1140; 
Born, Mus. Coes. 88 ; Chemn. Conch. Cab. vii. 187. t. 54. f. 535 ; 
Dillw. Rec. Shells, i. 229 ; Brown, Wern. Trans, ii. 512. t. 24. 
f. 3; Blainv. Man. Malac. t. 65. f. 1; Brown, III. C. G. B. 
