CATALOGUE OF 



IV. DESCRIPTIONS OF THE SPECIES KECOGXIZED. 

 1. Pisidium amnicum (Midler). 



[Pis. I, f. 1; III, f. 1 ; V-IX.] 



1774. Tellina amnica : M tiller, Verm, IILst. ii, p. 205. 



1797. Tellina ricalis : Maton, Trans. Linn. Soc. iii, p. 44, pi. xiii, f. 37, 



38. 



1801. C'yclas palustrift : Draparnaud, Tabl. Moll. p. 106. 

 1803. Cardium amnicum, Mull. : Montagu, Test. Brit. p. 86. 

 1813? Ci/clas amnica, Mull. : Fleming, Edinb. Encyclop. vii, p. 92. 

 1818. Ct/clas oblunta [n. sp.]: Lamarck, Anim. sans Vert, v, p. 559. 

 1821. Pisidium obliquum, Lam.: C. Pfeiffer, Naturg. Deutsch. Moll, i, 



p. 124, pi. v, f. 19, 20. 

 1832. Pisidium amnicum, Mull. : Jenvns, Trans. Camb. Phil. Soc. iv, 



p. 309, pi. xix, f. 2. 

 1838. Pisidium iiiflatum: Megerle in Porro, Maine. Comasca, p. 121, 



pi. ii, f. 13 : cites : " Syn. Ci/clas pfnjfo-i, Zeigler (set-. Stcnx.)." 

 1849. Pisidium amnicum, Jemns : G assies, Tabl. Moll. Agenais, p. 208. 

 1852. Pera henslowlana : Leach, Moll. Brit. Syiiop. p. 291. 



- Pera amnica ( -. .. ono 



- Pera fluviatilis \ ld ' - Clt " - 292 ' 



Cordula amnica : id., op. cit. p. 293. 



1854. Pisum amnicum, Mull.: Deshayes, Cat. Conch. Brit. Mus. ii 



p. 274. 



1855. Pisidium intermedium, nob. : Gassies, Actes Soc. Linn. Bordeaux, 



xx, p. 338, pi. i, f. 4. (6y. id., Journ. de Conch, v, 1850, 



p. 143.) 

 1858. Muscuhum amnicum, Hiill. : Adaii's, Gen. liec. Moll, ii, p. 451 . 



(Pisum amnicum, id., op. cit. p. 060.) 

 1879? Pisidium alien-urn, n. sp. : Clessin in Kiister, Syst. Conch.-Cab. 



ix, Abth. 3, Cycladeen, p. 269, pi. xli, f. 3-5. 

 1830. Pisidium amnicum, var. noca [n. v.]: Paulucci, Bull. Soc. Malac. 



Ital, vi, p. 176. 



1887. Pisidium elonyatum (olim amnicum, var. elonyata, Baud.) : Servain, 



Bull. Soc. Malac. France, iv, p. 252. 



1888. Pisidium danuhiule (Bourg. in coll.): Servain, Bull. Soc. Malac, 



France, v, p. 313. 



1 893. Pisidium depressum I n. spp. : Locard, Coquil. Eaux donees 

 - Pisidium transversum \ France, p. 1 40. 



1902. Pisidium baicalense, n. sp. : Dybowski, Nachrichtfbl. Deutsch. 



Malakoz. (Resell, xxxiv, p. 93; Rossmassler, Icon., N. F. x, 

 f. 1814. 



1903. Corneoc.yclas (Pisidium) amnica, Mull. : Dall, Proc. Biol. Soc. 



Washington, xvi, p. 7. 



1909. Pisidium subtilestriatum, n. sp. [ = var. nova, Paul.] : Lindholiu 

 in Korotneflj Wissensch. Ergebu. Zool. Exped. Baikal-See, iv, 

 p. 84, pi. ii. 



Fortunately there is no doubt about the identity of this species, 

 which was first described as British by Dr. Maton in 1797. 



