172 



32. P. pereonatum, Malm. Iceland and Sweden. 



33. P. pulchellum, Deshayes. 



Cyclas pidchella^ D'Orbigny (non Hanley), Mag. Zool. 1835. 



D'Orb. Voy. 568, pi. 83, f. 8—10, 1846. 

 Pimm pulchellum, Deshayes, Brit. Mus. Cat. Conchif. 283, 



1854. 

 Musculium pulchellum, H. & A. Adams, Gen. Rec. Moll, ii, 



452, 1858. 

 Sphceriu77i pulchellum, Prime, Proc. Ac. N. S. Phila. 297, 1860. 

 Pisidium pulchellum, Deshayes (non Jenyns), Smith. Inst. 



Misc. Coll., Prime Monog. Corb. 70, 1865. 



Uruguay, S. America. 



34. P. pusillum, Jenyns. 



Tellina pusilla, Gmelin, Syst. Nat. 3231, 1789. 



Cyclas fontinalis (pars), Draparnaud, Hist. Moll. 130, pi. x, 



f. 11, 12, 1805. 

 Pisidiiwi fontinale, C. PfeifFer, System. Anord. 126, pi. v, f. 



15, 16, 1821. 

 Cyclas pusilla, Turton, Man. 16, pi. i, f. 7, 1831. 

 Pisidium p)usillum, Jenyns, Trans. Pnil. Soc. Cambr. iv, 302, 



pi. XX, f. 4—6, 1832. 

 GaUileJa tenehrosa, Costa, Corrisp. Zool., 1839. 

 Pisidium roseiwi, Scholtz, Moll. Schl. 140, 1843. 

 Pisum pusillum, Deshayes, Brit. Mus. Cat. Conchif. 277, 1854. 

 Pisidium pusillum, Jenyns, Baudon, Pisid. Fr. 20, pi. i, f. C, 



1857. 

 Muscidium pusillum, H. & A. Adams, Gen. Rec. Moll, ii, 452, 



1858. 

 Musculium roseujii, H. & A. Adams, Loc. sup. cit. ii, 452, 



1858. 

 Pisum roseum, H. & A. Adams, Loc. sup. cit. ii, 660, 1858. 

 Pisidium pusillum, Jenyns, Prime Cat. Corb. 16, 1863. 



Europe. 



35. P. punctiferum, Guppy. 



Cyclas pu7ictifera, Guppy, Ann. Mag. N. H. 3d ser. xix, 160, 

 186—. Proc. Sc. Assoc. Trinidad, 137, 1867. 



Trinidad, W. Indies. 



36. P. retusum, Prime, Proc. Zool. Lond. xxviii, 322, 1860. 



Honduras. 



37. P. rotundatum, Prime, Proc. Bost. Soc. N. H. iv, 164, 

 1851, J. N. H. Bost. vi, 357, pi. xi, f. 19—21, 1852. 



Musculium rotundatum, H. & A. Adams, Gen. Rec. Moll, ii, 

 452, 1858. 



