BRITISH MOLLUSCA. 
31 
2. Spisula. 
Spisula (solida), Gray , Loudon Mag. N. H. i. 3/0, 1837 ; Syn . 
B. M. 1842, 92 (cop. Wiegmann , Arch. 1838, 86); Sow. Man. 
Conch. 101, ed. 2. 264. 
Mactra, part,, Lamk. Hist. A. s. V .; Forbes Sf Hanley , Brit. Moll. 
351 ; Leach, Ann. 8f Mag. N. H. xx. 2 72. 
Hemimactra (solidissima), part., Swainson, Malac. 369, 1840 ; 
Sow. Conch. Man. ed. 2. 260. 
Trigonella, part.. Da Costa, Brit. Shells, 1778. 
* Subequilateral. 
1. Spisula solida. 
Mactra solida, Linn. Syst.Nat. ed. 12. 1126 ; Chemn. Conch. Cab. 
vi. 230. t.23. f. 229, 230 ; Penn. B. Z. ed. 4. iv. 78. t. 51. f. 43a, 
t. 52. f. 43; Spengl. Skrif. Natur. Selsk. pt. 2. 113; Donov. 
B. S. ii. t. 61. f. 1, 3, 4, 5 ; Mont. Test. Brit. 92; Linn. Trans . 
viii. 70; Pulteney Hutchins 9 Dorset, 31; Dillw. Bee. Shells, 
i. 140 ; Dorset Cat. t. 6. f. 6 (32. 1. 12. f. 1) ; Brown, III. C. G.B. 
1. 15. f. 3, 4, 2nd ed. 108. t. 41. f. 3, 4 ; Lamk. Hist. ed. 2. vi. 
104 ; Forbes, M. G. S. i. 408. 11 ; Philippi, Moll. Sic. i. 11, ii. 
10; Hanley, Recent Shells, 31 ; Turt. Conch. Diet. 81 ; Turt. 
Brit. Biv. 67 ; Fleming, Brit. An. 426 ; Macgilliv. Moll. Aberd . 
288 ; Thorpe, Brit. Mar. Conch. 46 ; Ind. Test. t. 6, Mactra, 
f. 21 ; Forbes Sf Hanley , Brit. Moll. i. 351. t. 22. f. 1-5, t. L. 
f. 2, siphons; Leach, Ann. fyMag. N. H. xx. 272. 
Trigonella gallina, Da Costa, Brit. Conch. 199. t. 14. f. 6< 
M. dubia & M. ovalis. Sow. M. C. t. 160, fossil. 
M. striata, Smith, Wern. Mem. viii. t. 1. f. 22, fossil. 
Mactra truncata, Turt. B. B. 68 (not Montag.); Forbes, M. G . S. 
i. 408. 12. 
M. crassatella, Lam. 33. 
Trigonella zonaria. Da Costa, Brit. Conch . 197. t. 15. f. 1. 
Spisula solida, Gray, Mag. N. H. i. 373. 
List. Ang. t. 4. f. 24, adult. 
a, b. Frith of Forth. Presented by General Bingham. 
c. Youghal. Presented by Miss Warne. 
d — n. Tenby and Dawlish. 
o. Devon. 
p, q. Teignmouth. 
r. Britain. From the Collection of Col. Montagu. 
2. Spisula truncata. 
Mactra truncata, Mont. Test. Brit. Supp. 34 (not Turt. Brit. 
Biv.) ; Turt. Conch. Diet. 81 ; Flem. Brit. An. 427 ; Thorpe, 
Brit. Mar. Conch. 46; Dillw. Bee. Shells, i. 140; Hanley , 
Bee. Shells, 32, Supp. t. 9. f. 1 ; Forbes Sf Hanley, Brit. Moll . 
