MUSEUM OF COMPARATIVE ZOOLOGY. 181 



t P. CLARA Pse., P. Z. S., p. 671, 1864. Tahiti, Garr. In the Smithsonian 

 collection this species is regarded as = P. hyalina ; it is doubtless a good species. 

 Mr. Garrett informs me that it seems to be rapidly disappearing from the island 

 of Tahiti. 



f P. cognata Pse. Mss., Mus. Godeff. Cat., v. p. 92, 1874. Huaheine, Garr. = 

 P. rosea var. 



t P. COMPACTA Pse., A. J. C, ii. p. 200 ; Id. iii. p. 81, pi. 1, f. 9, 1866-67. 

 Raiatea, Garr. This shell possesses the keyhole aperture of P. auriculata ; it is a 

 good species. 



f P. COMPKESSA Pfr. Mss. (Bui.), Mus. Cumirjg, Conch. Icon. Mon. Part., spe- 

 cies 20, pi. 4, f. 20, 1850, Fiji Islands, coll. Taylor. This shell is very rare in 

 collections. 



t P. coNciNNA Pse., A. J. C, vii. p. 196, 1872. Tanna, New Hebrides. Mr. 

 Pease remarks, " This shell is the type of P. repanda " ; it resembles it in con- 

 tour, but is less than half the size of P. repanda. 



f P. c.onica Gould, Proceedings Boston Soc. Nat. Hist., p. 196, 1848. Rarkaa 

 and Samoa Islands, Gould. Upolu, Garr. Tulare, Navigator's Islands, Cox = 

 P. buhmoides. 



P. Cookiana Mouss. Mss., p. 28, f. 28, 29. Raratonga (Garr. in litt.) = P. 

 assiralis ? 



f P. Coxi Angas, Cox, Cat. Land Shells of Solomon's Island, p. 46, 1868. 

 Ysabel and Solomon's Island, Dr. Cox. I have been unable to find any notice 

 of this shell except in the catalogue of Dr. Cox. Specimens labelled P. Coxi 

 from several correspondents = P. grisea; those from Dr. Cox=:P. micans. 



t P. CRASSiLABUis Psc., A. J. C, ii. p. 199 ; Id. iii. p. 81, pi. 1, f. 6, 1866, 

 1867. Raiatea, Garr. 



f P. crassa Pse. Mss., Mus. Godeff. Cat., v. p. 92, 1874 = a sinistral short 

 heavy specimen of P. Otaheitana. Tahiti. 



P. cr'assiuscula Garr. Mss. in litt. in Mus. Godeff. Pacific Isls., Garr. 



f P. decorticata Pse. Mss., Coll. Pse. Raiatea = P. dentifera denuded of epi- 

 dermis. 



t P. DECTJ.ssATULA Pfr., P. Z. S., p. 131, 1850. Con. Icon. Mon. Part., 

 species 24, pi. 4, f. 23, 1849. Dominique, Marquesas, Garr. Samoa, Pse. 

 Navigator's Isls., Dr. Cox. 



f P. DENTIFERA Pfr., P. Z. S., p. 85, 1852. Raiatea, Garr. Solomon's Island, 

 Dr. Cox. 



P. diminuta C. B. Adams, Ann. Lye. Nat. Hist., v. p. 81, 1850. Society Islands. 

 I have been unable to identify this shell. It would seem that the types in the 

 Adams collection are lost. Prom the description I am inclined to believe it a 

 variety of tliat protean species P. Otaheitaua. 



f P. DUBiA Garr. Mss. in litt. Tahaa, Garr. = faba dentate var.* 



t P. elongata Pse., A. J. C, ii. p. 196 ; Id. iU. p. 81, pi. 1, f. 2, 1866-67. 

 Moorea, Garr. = P. spadicea var. 



* Andrew Garrett, of Huaheine, will describe the M.ss. species of Mr, Pease and 

 himself which are marked as good species in this catalogue. 



