MUSEUM OF COMPARATIVE ZOOLOGY. 179 



To Mr. Geo. W. Tryon, Jr., Curator of the Conchological Department 

 of the Academy of Natural Sciences, Philadelphia, I am especially 

 obliged for his uniform courtesy in aiding me in the examination of 

 books and specimens belonging to the Academy. 



GENUS PARTULA FERUSSAC. 1819. 



Helix Miill. — Otis Huinph. — Auris Chem. — Bulimus Brug. — Volute Dill. 

 Partulus Beck. — Partula Pfr., W. H. Pease, 0. Semper, W. G. Binney. 



[All species marked with a dagger are embraced in my collection — Species are printed in 

 Small Capitals ; synonyms, in Italics.'] 



P. ABBKEViATA Mouss., J. C, xvii. p. 339, pi. 15, f. 7, 1869. Island Tutuila, 

 Graffe. 



t P. abbreviata Pse. Mss. (non Mouss.), Mus. Godeff. Cat., v. p. 91, 1874. 

 Island Raiatea, Garr. = P. Thalia. 



f P. ACTOR Albers, (Partulus) Helicien, p. 87, 1850. Belcher Island. 



P. adusta Garr. Mss. in litt. Tahiti, Garr. 



t P. affinis Pse., A. J. C., iii. p. 224, 1867, Tahiti, Garr. = lignaria. This shell 

 is variable in size and color ; it is often confounded with small dextral examples 

 of P. Otaheitana; some are more elongate than others, while a few are almost 

 globose. In the Pease collection, a few of the latter were labelled by him 

 P. bacca, Pse. Mss. The pillar tooth is often absent, and the shell is usually smaller 

 in size than depauperated examples of P. Otaheitana, of a dark bay or rufous 

 color, often with darker obhque striae, and occasionally with a dark-brown band 

 at the periphery. The surface is always smooth, looking as though it had been 

 oiled. All specimens of P. rufa from correspondents = P. affinis ; the former is 

 said to occur in the Carohne Islands. 



t P. ALABASTRiNA Pfr. (Bulimus), P. Z. S., p. 39, 1856. Fiji Islands, Geale. 

 Solomon's Island, Cox. 



f P. alternata Pse. Mss., Moorea, Garr. = P. suturahs Pfr. 



f P. amabilis Pfr. (Bulimus), P. Z. S., p. 38, 1850. Tutuila and Anaa Islands, 

 Tahiti, Garr. = P. Otaheitana var. 



p. amanda Garr. Mss., Tahaa, Garr. = P. faba var. 



t P. ANNECTENs Pse. (Bul.), P. Z. S., p. 671, 1864. Huaheine, Garr. 



f P. approximata Pse., Mus. GodefF. Cat., v. p. 207, 1874. Raiatea, Garr. 



t P. ARGUTA Pse. (Bul.), P. Z. S., p. 670, 1864. Huaheine, Garr. 



t P. ASSiMiLis Pse., A. J. C, p. 230, pi. 15, f. 28, 29, 1867. Raratonga, Garr. 

 This shell may prove to be a local variety of P. varia. 



t P. ATTENUATA Psc , P. Z. S., p. 672, 1864. Raiatea, Tahiti, Ga^r. 



P. Australis Brug. (Bul.), Encyc. Meth., i. No. 83, 1792. =P. faba. 



