1885.1 NATURAL SCIENCES OF PHILADELPHIA. 207 



f P. citrina P.-c A. J. C, ii. p. 195, 1866. Raiatea. 



P. citrina Garr. Terr. Moll. Society Isls., J. A. N. S., vol. ix, p. 6, 



pi. 3, fig. 52. Schni., Pfr. 

 P. citrina Pfr. Mon. Ilelic. Viv., p. 302. 

 P.faba, var., Carpt., Hartm. 



Obs. — In common with Pse., Cuming and Pfr., in former 

 catalogues, I regarded this shell as a variety of /aba. Other 

 varieties of / aba are equally constant in ccflor, but less abundant. 

 I defer to the opinion of Mr. Garrett, who is fully convinced of 

 its specific value, having collected it in great quantity. 



f P. vittata Pse. A. J. C, p. 194, 1866. Raiatea. 



P. vittata Garr. Terr. Moll. Soct. Isls., J. A. N. S., vol. ix, p. 75, pi. 3, 

 fig. 56. 



P. vittata Pfr. Hartm. 

 \ P. terresfris Pse. MS. Coll. Pse., Piietl., Gloy., Hartm., Garr. 

 f P. castunea Pse. MS. Coll. Pse., Hartm., Garr. 

 \ P. approximata Pse. MS. Coll. Pse., Schm., Gloy., Hartm., Garr. 



P. faba, var., Carpt. P. Z. S., p. 675, 1864. 

 \ P. microstoma Pse. MS. Coll. Pse., Hartm. (non Garr.). 



P. vittata Pfr. Mon. Helic. Viv., p. 302. 



Obs. — Mr. Garrett very properly unites the three MS. varieties 

 of Mr. Pease, terrestris, castanea and approximata, with vittata 

 of which the}- are modified forms. P. microstoma Pse. MS. 

 Coll. Pse., are large examples of vittata without the pillar tooth. 

 P. microstoma Pse., is certainly not synonymous with P. radiata 

 Pse. MS. 



f P. fusca Pse. A. J. C, p. 193, 1866. Raiatea. 



P.fusea Paetel. W. G. Binn., Pfr., Schm., Hartm. 



P. fusca Garr. Terr. Moll. Society Isls., J. A. N. S., vol. ix, p. 71, pi. 



3, fig. 50. 

 P. ovalis Pse. A. J. C, ii, p. 194, 1866. Pfr., Hartm. (non Garr.). 

 P. dentifera Carpt. = ovalis (non Pfr.). 

 P.faba, var., Carpt. P. Z. S., p. 675, 1864 = protea. 

 P. protea Pse. MS. Coll. Pse., Schm., Pfr, Hartm. (non Garr.). 

 P. navigatoria Carpt. (non Pfr.). 



Obs. — In former catalogues I included all the variable terres- 

 trial species, lugubris,p>rotea, ovalis and fusca, under fusca. The 

 type examples of fusca (Coll. Pse.) are immature shells of the 

 uniform dark fuscous ovalis, two quarts of which were included 

 in the Pease duplicates, labeled P. ovalis by Pease. The shell 



