132 
BRITISH MOLLUSCA. 
Pecten aculeatus, Jeffreys, Conch. Mag. i. 40 (not described) ; 
Sow. Thes. Conch, i. 7L Pecten, t. 13. f. 47; Thorpe, Mar. 
Conch. 249. f. 30. 
Pecten vitreus jS, var., Gmelin. 
Pecten rimulosus, Philippi, Sicil. ii. 60 (fossil?). 
Pecten spinosus, Johnston, Trans. Berw. N. C. 
Pecten similis, Laskey, Wern. Trans, i. t. 8. f. 8 ; Brown, III. C. 
t. 32. f. 56. 
Pect. fuci, Thompson, Ann. Nat. Hist, xviii. 385. 
P. Landsburgi, Smith, Wern. Mem. viii. 106. 58. t. 2. f. 2 ; 
Hanley, Bee. Shells, i. 282 ; Brown, III. C. ed. 2. 73. t. 25. f. 8. 
Pallium vitreran (part.), Chemn. Conch. Cah. vii. 335. t. 67. 
f. 637 5, c. 
a. Hebrides. Presented by R. M f Andrew, Esq. 
h — d. Oban. 
e. Loch Carron, Ross-shire. Presented by J. G. Jeffreys, 
Esq. 
f—i. Scotland. 
j, k (Pecten furtivus, MSS A). Scotland. 
7. Argus similis. 
Pecten similis, Laskey, Mem. Wern. Soc. i. 387. t. 8. f. 8 ; Flem. 
B. An. 385 ; Macgilliv. Moll. Ah. 227 ; Brown, III. C. G. B. 
73. t. 25. f. 5, 6 ; Forbes Sf Hanley, Brit. Moll. ii. 293. t. 52. 
f. 6, & t. S. f. 1 (animal). 
Pecten tumidus, Turt. Biv. 212. t. 17. f. 3; Flem. B. An. 384 ; 
Brown, III. C. G. B. 73 ; Hanley, Bee. Shells, i. 275 ; Loven, 
I. M. 32. 234. 
Ostrea tumida, Turt. Conch. Diet. 132; Sow. C. III. 
Pecten pygmeus, “ Muenst .” Philippi, Sicil. 
P. laevis, young? Turton. 
a — e. Loch Fyne. 
/, g. Ditto. Presented by R. M ‘Andrew, Esq. 
8. Argus Islandicus, 
Pecten Islandicus, Muller, Z. D. Prod. 284. no. 2990, 1770 ; 
Chemn. vii. 65. f. 615, 616; Turton, Bivalves, 216; Loven, Ind. 
Moll. 30. 330; Thorpe, Brit. Mar. Conch. 119; Forbes, M. G. S. 
i. 419. 70; Flem. B. An. 385; Macgilliv. Moll. Ab. 226; Brown, 
III. C. G. B. 72. t. 24. f. 2; O. Fabric. Faun. Green. 415; 
Lamk. Hist. 2nd ed. vii. 145; Say, Amer. Conch, t. 56. f. 1; 
Sow. Thes. Conch, i. 73. t. 17. f. 159, 160, 165; Gould, Inv. 
Mass. 134. f. 87; Hanley, Bee. Shells, i. 284 ; Forbes Sc Hanley, 
Brit. Moll. ii. 303. 
Ostrea Islandica, Gmel. S. N. 3326 ; Turt. Diet. 258 ; Ind. Test. 
1. 10. f. 21. 
