144 
BRITISH MOLLUSCA. 
1. Crania. 
Crania, Retzius , Schrift. Ges. Nat. Berlin , ii. 66, 1781 ; Diss. 11. 
1788; Brug. Enc. Meth. i. 1789; Lamk. Prod. 1799; Syst. 
1801; Phil. Zool. 1809; Hist. ed. 1. vi. 237, ed. 2. vii. 297 ; 
Megerle , Entw. 1811; Schum. N. Ess. 1817; Feruss. Tab. Syst.; 
Rang, Man. ; Schweigg. Naturg. ; Blainv. Malac.; Latr. Fam. 
Nat. ; Menke, Syn. 56 ; Philippi, Moll. Sicil. ; Gray, Lond. 
Med. Repos. 1821; Ann. Philos. 1825; Syn. B.M. 1840; 
1842, 92 ; Proc. Zool. Soc. 1847, 202; Forbes Sc Hanley, Brit. 
Moll. ii. 365. 
Criopus and Criopoderma, Poli, Test. Sic. ; Flem. Brit. An. 
Cry opus, Desh. E. Meth. 
Orbicula, sp., Lamk. Syst. 1801; Schum. N. Ess. 
Discina, Turt. Brit. Biv. (not Lamk.). 
Patella, sp., Fabr., Muller, Montagu. 
Anomia, sp., Linn., Chemn. 
1. Crania anomala. 
Patella anomala, Mull. Z. D. t. 6. 
Pat. distorta, Mont. Linn. Trans, xi. 195. 1. 13. f. 5; Flem. Ed. 
Enc. vii. 65. t. 204. f. 4. 
Anomia turbinata, Dillw. Rec. Shells, i. 286 (part.) ; Ind. Test. 
1. 11. f. 2. 
Discina ostreoides, Turt. B. Biv. 237, not Lamk. 
Crania person ata. Sow. Trans. Linn. Soc. xiii. 471. t. 26. f. 3; 
Crouch, Intr. Conchol. t. 13. f. 3? 
Criopus anomalus, Flem. Phil. Zool. ii. 499; B. An. 377* 
Crania rostrata, Thorpe, B. Mar. Conch. 125. 
Orbicula Norvegiea, Potiez fy Mich. Gal. Douai Moll. ii. t. 43. 
f. 1? ; Brown, III. C . G. B. 69. t. 22. f. 9, t. 20. f. 21, 22. 
Crania Norvegiea, Sow. Thes. Conch, i. 368. t. 73. f. 15-17. 
Crania anomala, Loven, Ind. Moll. Sk. 29 ; Forbes ty Hanley, 
Brit. Moll. ii. 366. t. 56. f. 7, 8 ; t. U. f. 2 (animal as C. Nor- 
vegica). 
a, b. Cork. Presented by Miss Elliot. 
c. Ditto. Presented by J. D. Humphreys, Esq. 
Order II. AN C YLOBRACHIA. 
Ancylobrachia, Gray, Ann. N. H. 2nd ser. ii. 435, 436, 1848. 
Fam. 1. Terebratulid^e. 
Terebratuladse, Leach, MSS. 1818, Ann. fy Mag. N. H. xx. 273. 
Terebratulidse, Gray, Syn. B. M. 1840; 1842, 85, 92; M ( Coy, 
Carb. Foss. Ireland; King, Ann. fy Mag. Nat. Hist, xviii. ; 
