222 PEOCEEDINGS OF THE ACADEMY OF [1885. 



t P. conica Gld. Proc. Bost. S. N. Hist., p. 196, 1841. Raraka and Samoa Islands. 

 P. conica Gld. Exped. Shells, fig. 88. 

 P. conica Pfr., iii, 445, iv, 507. 

 P. conica Pfr. Novit. Conch., i, tab. 34, f. 8, 9. 

 P. conica Pfr. Nom. Helic. Viv., p. 300. 

 P. Upolensis Mouss. MS. Paetel., p. 104. Upolu. 

 P. canalis Mouss. Jour. Conchyl., xiii, p. 132, 1800. Upolu, Tulare. 

 P. canalis Pfr. Nona. Ilelic. Viv., p. 300. 

 P. bulimoides Hartm. Bib. Cat. part, p. 180 (non Less.). 



Obs. — I possess these shells from the Islands of Tutuila, Upolu 

 and Samoa. Like actor Albers, it is a denizen of several islands of 

 this group. Dr. Gould, in his description of this species, embraces 

 the dextral and sinistral forms of the yellow and brown varieties. 

 Others profess to see a difference, which has resulted in a needless 

 synonymy. 



P. bulimoides Lesson. Voy. Coq., p. 326, 1829. New Guinea, 

 P.faba ? var., Pfr. Norn. Helic. Viv. p. 302. 

 P. bulimoides Hartm. Bib. Cat. Part., p. 180. 



Obs. — Although Lesson's brief diagnosis of bulimoides approxi- 

 mates nearer to some varieties of conica than to any known 

 species, his measurements of the shell and the locality induce me 

 to restore the species. 



XIII. Macgillivrayi Group. 

 f P. Macgillivrayi Pfr. P. Z. S., p. 325, 185(5. .V. w IT, brides. 



P. Macgillivrayi Pfr., iv, 508 ; Nov. Conch., i, t. 17, f. 14, 15. 

 P, Macgillivrayi Pfr. Nona. Helic. Viv., p. 301 ; Hartm., Bib. Cat., 

 Part., 184. 

 jP. TurneriVtr. P. Z. S., p. 140, 1860 vi, 159'; Norn. Helic, Viv., 

 302. Erromango Island. 

 P. Margillivarayi Hartm. Bib. Cat. Part., 188. 



Obs. — I have a number of examples of this shell, which is 

 somewhat variable. I am indebted to Capt. Brazier for speci- 

 mens from Vati, Sandwich Island, New Hebrides. 



f P. Caledonica Pfr. ( Bulimus). P. Z. S., p. 387, 1861, V«vn«. Tavu, Hayiks Island, 

 N. Hi brides. 



\P. Pfeifferi Crosse. Jour. Conchyl., xix, p. 184, 1871. Vavua, Tavu. 



P. Pfeifferi Pfr. Nom. Helic. Viv., 301. 

 + P. Brazieri Pse. A. J. C, vii, p. 27, pi. 9, f. 5, 1872. Tutuila. 



P. Macgillivrayi Pfr., viii, 194 ; Nom. Helic. Viv., 300. 



P. Macgillivrayi Hartm. Bib. Cat. Part., p. 180. 



Obs. — Capt. Brazier writes that he only obtained one example 



