SPECIES OF PISIDIUM. 31 



CROMERIAN. 



EAST. EN. 



Cromer, to west of [M. P. G.] ; West llunton [A. S. K. & 

 B. B. W.] [M. P. G.]." 

 SUFFOLK, EAST. ES. 

 Kessingland [M. P. G.]. 



PLIOCENE. 



NORFOLK, EAST. EN. 



Bramerton Common [N. M.]. 



The first record of this species on the Continent appears to have 

 been due, as already noted, to E. Yon Martens, who described it in 

 1864 (108, p. 349) under the name of P. antlquum, from deposits 

 on the banks of the Trtisch, near Omsk. In Denmark it has been 

 found in Pleistocene deposits at Forslevgaard (SjaeUand) and Copen- 

 hagen (Johansen, 85, pp. 9, 57, 58 & 67). 



The late Dr. Boettger possessed specimens from the Pleistocene 

 (Mosbach Sand) at Messel (near Darmstadt) and Schierstein-a.- 

 Rhein (near Wiesbaden) ; while Dr. "Wiist has further recorded it 

 (196) from Mosbach (near Wiesbaden) itself, Mauer (near Heidel- 

 berg) and Hohensachsen (near Wembeim-an-der-Bergstrasse). 



3. Pisidium casertanum (Poll). 

 [Pis. I, f. 3-6 ; III, f. 3 ; XIII.-XVIIL] 



1791. Cardimn casertanum : Poli, Test. utr. Sicilian i, ord. u., p. Go, pi. xvi 



f. 1. 



1826. Cyclas vitrea, n. : Risso, Hist. Nat. Europe me"rid. iv, p. 338. 

 1830. Cyclas prisca, m. : Eichwald, Naturh. Skizze von Lithauen, 



p. 207. 

 1836. Pisidium nustrale, n. sp. : Philippi, Enum. Moll, Sicilian, i, p. 39, 



pi. xiv, f. 11. [Cf. PL XIII, f. 32 ; XV, f. 13.] 

 1838. Pisidium cinereum: Alder, Trans. Nat. Hist. Soc. Northumbld., ii, 



p. 341. [Cf. PL XIII, f. 10 & 16 ; XV, f. 7 & 10.] 

 1840. Galileju tembrosa, n. gen., n. sp. : Costa, Faun. Sicil. i, Moll. p. 1. 



pi. i', f. 2 a, A, B. [PL XIII, f. 27 ; XV, f. 18.] 



1843. Cyclas cinerea, Alder : Hauley, Cat. Ree. Bivalve Shells, p. 91. 



Pisidium roseitm, m. : Scholtz, Schlesien's Moll. p. 140 : P. fontinale, 



b. rosemn, id., op. cit. suppt. (1853) p. 16. [PL XIII. f. 9 

 XV, f. 11.] 



1844. Cyclas lenticular is, nob. : Normand, Notice Cyclades Valenciennes. 



p. 8, pi. f. 7 & 8. [Cf. PL XIII, f. 29 ; XVI, f. 10.] [Cf. spe- 

 cimens from Baud on in Norman Coll., B.M. 98.5.20 : 22330-35.] 



1846. Pisidium vitreum, Pfeiffer : Verany in " Descrizione di Genova," 

 i, pt. 2, p. 93. 



1849. Pisidium limosum, nob. : Gassies, Tabl. Moll. Agenais, p. 206, pi. ii, 



Pisidium amniciim, Jenyns: var. B. nitidu? spec. nov. ; id., tern. cit. 



p. 208 [ intermedium, Gassies, v. infra], 



- Pisidium caliculatum : Dupuy, Cat. extram. Gallias Test. [4] 

 No. 229; id., Hist, Nat. Moll. France, 1852, p. 684, pi. xxx, f. 4. 



