172 



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



33. P. pulchellum, Deshayes. 



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



D'Orb. Voy. 568, pi. 83, f. 810, 1846. 

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



1854.' 

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



452, 1858. 



Sphcerium 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. 

 Pisidium fontinale, C. Pfeiffer, System. Anord. 125, pi. v, f. 



15, 16, 1821. 



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

 Pisidium pusillum, Jenyns, Trans. Pnil. Soc. Cambr. iv, 302, 



pi. xx, f. 46, 1832. 



G-allileja tenebrosa, Costa, Corrisp. Zool., 1839. 

 Pisidium roseum, 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. 

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



1858. 

 Musculium roseum, 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 punctifera, 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. 1921, 1852. 



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

 452, 1858. 



