BRITISH MOLLUSCA. 
31 
2. Spisula. 
Spisula (solida), Gray , Loudon Mag. N. H. i. 370, 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 £f Hanley, Brit. Moll . 
351 ; Leach, Ann. fy 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. 
* Sub equilateral. 
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. Rec. Shells, 
i. 140 ; Dorset Cat. t. 6. f. 6 (32. t. 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. fy Mag. 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. Rec. Shells, i. 140 ; Hanley, 
Rec. Shells, 32, Supp. t. 9. f. 1 ; Forbes fy Hanley, Brit. Moll . 
