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; 
1801; PM. ZooZ. 1809; Hist. ed. 1. vi. 237, ed. 2. vii. 297; 
Megerle, Entw. 1811; Scham. N. Ess. 1817 ; Feruss . Th6. 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 Sf 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, Billw. Rec. Shells, i. 286 (part.); Ind. Test. 
t. 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. 37 7* 
Crania rostrata, Thorpe, B. Mar. Conch. 125. 
Orbicula Norvegica, Potiez Sf Mich. Gal. Douai Moll. ii. t. 43. 
£ 1? ; Brown, III. C. G. B. 69. t. 22. f. 9, t. 20. f. 21, 22. 
Crania Norvegica, Sow. Thes. Conch, i. 368. t. 73. f. 15-17. 
Crania anomala, Loven, Ind. Moll. Sk. 29 ; Forbes Sf 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 CYLOBRACHIA. 
Ancylobrachia, Gray, Ann. N. H. 2nd ser. ii. 435, 436, 1848. 
Fam. 1. Terebratulid^e. 
Terebratuladse, Leach, MSS. 1818, Ann. Mag. N. II. xx. 273. 
Terebratulidae, Gray, Syn. B. M. 1840; 1842, 85, 92; M 6 Coy, 
Carb. Foss. Ireland ; King, Ann. Sf Mag. Nat. Hist, xviii. ; 
