276 BIVALVE SHELLS. 



purpureis ; dentibus cardinalibus duobus minimis, lateralibus 

 in utraque valva validis; ligamento minimo, extus con- 

 spicuo. 



Cardium casertanum, Poli, Test. utr. Sicil. i. 65. pl. 16. f. l 



(1791). 

 Cyclas fontinalis (ex ipnrte), Nilsson, Hist.Moll. Suec.\^. 101 . no. 6. 

 Pisidium australe, Phil. Enum. Moll. Sicil. i. 39; ii. 31. no. 2. 



pl. 14. f. 2. 



Ray Sf Drouet, Cat. des Moll. de la Champ. p. 32. no. 63. 

 Pisidium cinereum, Alder, Cat. Land 4* Freshw. Moll. Northumb. 



Suppl. p. 4. 



Gray, Turt. Man. ed. 2. p. 286. no. 121. pl. 10. f. 152. 

 Forbes S,- Hanley, Hist. of Brit. Moll. ii. 125. pl. 36. f. 2. 

 Dupuy, Hist. nat. des Moll. de France, p. 683. pl. 30. f. 3. 

 Pisidium obtusale, Villa, Disp. Syst. Conch. p, 44. 

 Cyclas obliqua, Dupuy, Moll. du Gers, p. 91. no. 4. 

 Cyclas cinerea, Hanley, Descr. Cat. p. 91. 

 Cyclas lenticularis, Norm.and, Notice sur quelques especes de Cy- 



clades, p. 8. no. 4, f, "] , 8. 

 Pisidium iratianum, Dupuy, Cat. extr. Gall. no. 234. 

 Pisidium thermale, Dupuy, loc. cit. no. 238 ; Hist. nat. des Moll. 



de France, p. 682. pl, 30, f. 6. 

 Pisidium calyculatum, Dujiuy, Cat. extr. Gall. no. 229 ; Hist. 



nat. des Moll. de France, p. 684, pl. 30. f. 4. 

 Pisidium sinuatum, Bourguignat, Journ. de Conch. i. 421 ; ii. 49. 



pl. l.f. 6-10. 

 Pisidium lenticulare, Dupuy,Hist.nat. desMoll. de FraMce,p.680. 



no. 2. pl. 30. f. 2. 



Hab. Europa. 



3. PlSUM VITREUM. 



P. testa variabile, oblique ovali, insequilaterali, plus minusve ven- 

 tricosa, striata, striis ])rofundiusculis, nitida, cinereo-lutescente 

 vel sordide ferruginea incrustata ; umbonibus obtusiusculis, 

 simplicibus, approximatis, vix prominentibus. 



Cardium amnicum (junius), Mont. Test. Brit. p. 88 (teste Gray 



1840, Hanley 1843). 

 Cyclas fontinalis, Broivn, Edinb. Journ. of Nat. and Geol. Sc. i. 



pl. 1. f, 5, 7. 



Alder, Trans. Nat. Hist. of Newcastle, p. 41. no. 69. 

 Cyclas vitrea, Risso, Eur. Merid. iv. 338. no. 914. 

 Pisidium Joannis, Macgilliv. Moll. Anim. of Scotl. p. 209. no. 1, 



et p. 248. 

 Pisidium Jenynsii, Macgilliv. loc. cit. p. 209. no. 2. p. 249. 



