64 
BRITISH MOLLUSCA. 
Lembulus (margaritacea),Sow. Conch. Man. ed.2. 1 7 0 (not Leach). 
Glycimeris, pan.. Da Costa, Brit. Shells. 
Polydonta (nucleus), Muhlf. Entw. 48, 1811 (not Renieri nor 
Fischer nor Blainv.). 
Pectunculus, part., Schum. Nouv. Ess. 
Area, sp., Linn. 
Tellina, sp., and Donax, sp., Gmelin. 
1. Nucula nucleus. 
Area nucleus, Linn. S. N. i. 1143 (part.); Penn. B. Z. ed. 4. iv. 
84. n. 59 (not tig.) ; Don. B. S. ii. t. 63, side tigs. ; Mat. Sf 
Rack. Linn. Trans, viii. 95; Mont. T. B. 141; Wood, Linn. 
Trans, vi. 1 . 18. f. 3, 6; Turton , Brit. Faun. 161. no. 287. 
Nucula nucleus, Forbes Sp Hanley, Brit. Moll. ii. 215. t. 47. f. 7, 8; 
t. P. f. 4, animal. 
Nucula nucleus, var. ft, Loven, I. M. 34. 256 ; Forbes, M. G. S. 
i. 416. 65. 
Glycimeris argentea, Da Costa, 170. 1. 15. f. 6, right. 
? Nucula argentea, Broivn, III. C. G. B. t. 25. f. 14, 15. 
Nucula margaritacea, Lamk. H. vi. 6, 2nd ed. vi. 506 ; Leach , 
MSS. Ann. Sf Mag. N. H. xx. 272; Brown, III. C. G. B. 85. 
t. 33. f. 12 ; Philippi, Moll. Sic. i. 64, ii. 45. 
? N. erosa, Jeffreys, Conch. Mag. (not described). 
a — d. Scarborough. 
e — i. Britain. Presented by Mrs. Robinson. 
2. Nucula tenuis. 
Nucula tenuis, Turt. Biv . 177 ; Flem. B. An. 402 (not Philippi) ; 
Loven, I. M. 34. 259 ; Forbes , M. G. S. i. 417, 671, 418. f. 3 ; 
Forbes Sf Hanley , Brit. Moll. ii. 223. t. 47. f. 6 ; t. P. f. 5 (ani- 
mal); Macgilliv. Moll. Aberd. 244 ; Thorpe, Brit. Mar. Conch. 
105; “ MollerV’ Loven; Hanley, Rec. Shells, i. 171. t. 10, 
Area, f. 45 ; Brown, III. Conch. G. B. 85. t. 33. f. 13 ; Gould, 
Invert. Mass. 105. 
Area tenuis, Mont. T. B. Supp. 56. t. 29. f. 1 ; Turt. Conch. Diet . 
11; Dillw. Rec. Shells, i. 246 ; Ind. Test. 1. 10, Area, f. 45. 
Nucula tenera (foss.), S. Wood, Mag. N. Hist. 1840, t. 14. f. 2. 
a — -f. Inverary. 
g~ i. Britain. Presented by J. Alder, Esq. 
j — l. Britain. 
3. Nucula nitida. 
Nucula nitida, Sow. Conch. III. Nucula, f. 29. f. 31; Thorpe, M. 
Conch . 248. f. 31 ; Hanley, Rec. Shells, i. 171. t. 19. f. 44; 
Loven, I. M. 34. 258 ; Forbes Sf Hanley, Brit. Moll. ii. 218. 
t. 47. f. 9. 
