44 
BRITISH MOLLUSCA. 
4. Abra TENUIS. 
Mactra tenuis, Mont. T. B. 572. 1. 17- f. 7 ; Linn. Trans . viii. 72; 
Dorset Cat. 33 ; Turton , Conch . Diet. 84 ; Fleming , Brit. An. 
433; Dillw. Becent Shells, i. 142; Iwc?. t. 6. Mactra, 
f. 26. 
Amphidesma tenue, Lam. Hist. ed. 2. vi. 128. 8; Turt. Biv. 53 ; 
Flem. Brit. An. 432 ; Macgilliv. Moll. Aberd. 293; Thorpe, 
Brit. Mar. Conch . 55. f. 24; Brown, III. Con. G. B. 105. t. 45. 
f. 2 ; Delessert, Bee. Coq. t. 4. f. 6 ; Hanley, Becent Shells, 42. 
Ligula tenuis. Brown, III. C. 1. 14. f. 2. 
Abra tenuis, Leach, fide Lamk. H. v. 492 ; Ann. Sc Maq . N. H. 
xx. 1847, 272. 
Syndosmya tenuis, Becluz, Bev. Zool. 1843, 366, in Chenu, III. 
Conch. Syndos. 3 ; Forbes Sc Hanley, Brit. Moll. i. 323. 1. 17. 
f. 11. 
a — -f. Coast of England. 
5. Trigonella. 
Arenaria (compressa), Megerle, Entw. 47, 1811, not Linn. 
Scrobicularia a., Schum. Essai, 127, 1817 ; Blainv. D. S. N. xlviii. 
212 . 
Scrobicularia, Forbes fy Hanley, Brit. Moll. 325. 
Ligula /3. (compressa), Montague, T. Brit. 1808. 
Abra (compressa), part, Leach, MSS. Brit. Mus. 1819 ; Ann. Sf 
Mag. N. H. xx. 1847, 272. 
Abra (fragilis ), (e Leach, MSS.;” Bisso, Eur. Merid. iv. 370, 
1826. 
Lavignon, Cuvier, B. A. 1817; D’Orb. Amer. Merid. 
Lavignonus (Lavignon), Ferussac, Tabl. Syst. 44, 1821 ; Pot. fy 
Mich. Gall. ii. 249, 1844. 
Listera (piperita), Turton, Bivalves, 51, 1822 (not Brown) ; 
Menke, Syn. ed. 2. 118. 
Lutricola a., Blainv. Diet. Sci. Nat. xxxii. 348, 1824 ; Malac. 
566 ; not Luticola, Goldfuss. 
Lutraria (compressa), Swains. Malac. 1840. 
Trigonella (compressa), Loven, Moll. Skand. 
Calcinella, (( Desh.,” Agassiz, Nomenclat. 
Carinella, Sow. Man. 98 (misprint), 1842. 
Platymya sp., Agassiz, Verh. 1838. 
Lutraria, sp., Lamk. Hist. A. s. V. 1818. 
Trigonella, sp., Da Costa, Brit. Shells, 200. 
Amphidesma, sp., Fleming, B. A. ; Sow. Gen. ; Say, Amer. 
Conch . 
Ligula, part, Leach, MSS. 
Chama (Calcinella), Adanson, Seneg . 
