172 



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



33. P. pulchellum, Deshayes. 



Ci/clas pulchella, D'Orbigny (non Hanley), Mag, Zool. 1835. 



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

 Pisum pulcheUu77i, Deshayes, Brit. Mus. Cat. Conchif. 283, 



1854. 

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



452, 1858. 

 Sphcerium jjulchellwn, Prime, Proc. Ac. N. S. Phila. 297, 1860. 

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



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



Uruguay/, jS. America. 



34. P. pusillum, Jenyns. 



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



Ci/clas 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. 4—6, 1832. 

 Gallileja tenehj'osa, Costa, Corrisp. Zool., 1839. 

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

 Pisum p)usillum, Deshayes, Brit. Mus. Cat. Conchif. 277, 1854. 

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



1857. 

 3Iusculium pusillum, H. & A. Adams, Gen. Rec. Moll, ii, 452, 



1858. 

 Musoidium roseum, H. k A. Adams, Loc. sup. cit. ii, 452, 



1858. 

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

 Pisidium pusillitm, 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. 19—21, 1852. 



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

 452, 1858. 



