1887.] NATURAL SCIENCES OP PHILADELPHIA. 143 



A thick, broadly ovate, imperforate species, Avith fine spiral im- 

 pressed striae and short conical spire. Color different shades of 

 chestnut-brown, white, corneous, fulvous, frequently with from one 

 to four transverse bands on the body-Avhorl, and more rarely with 

 a sutural livid band. Aperture pale fulvous, brownish or white, 

 and the lip light fulvous or white. Length 10 to 16 mill. 



C. paludosa, Garrett. 



Ophicardelus jyaludosus, Garrett, Amer. Jour. Conch., 1872, p. 

 220, pi. 19, fig. 8. 



Cassidula paludosa, Paetel, Cat. Conch., p. 114. 



Plecotrema paludosa, Schmeltz, Cat. Mus. Godeff., v, p. 87. 



Melampus paludosus, Pfeiffer, Mon. Pneum. (Auric), iv, p. 327. 



A few specimens found in mangrove swamps at Upolu. Com- 

 mon in the Viti group. 



A small, solid, ovate, whitish, yellowish-horn colored, or chestnut- 

 brown species, with fine, spiral, incised punctured lines and carin- 

 ated base. Spire convexly conical and more produced than in the 

 preceding species. Length 8 to 10 mill. 



PYTHIA, Bolten. 



P. tortuosa, Mous!<on. ^ 



Pythia tortuosa, Mousson, Jour, de Conch., 1871, p. 19, pi. 3, fig. 

 6. Paetel, Cat. Conch., p. 114. Schmeltz, Cat. Mus. Godeff., v, p. 87. 

 Pfeiffer, Mon. Pneum. (Auric), iv, p. 339. Nevill, List. Moll. Ind. 

 Mus., p. 221. Cox, Proc Lin. Soc. X. S. W., 1881, p. 618. 



Common on the margins of mangrove swamps at Upolu. Dr. 

 Graffe collected examples at Futuna and Wallis Island in the 

 northern part of the Tonga group. 



This species which ranges from 18 to 25 mill, in length, is luteous 

 horn-color, with small irregular chestnut-brown maculations ; some- 

 times uniform chestnut-black or corneous, and the varices are spot- 

 ted with dark chestnut and white. The base is either imperforated 

 or rimate. The aperture is luteous, rarely brownish, and the jieri- 

 stome is usually mottled. The columellar fold is generally contin- 

 uous with the basal portion of the peristome, and the lower parietal 

 plait is simple. 



P. Savaiensis, Mousson. 



Pythia pantherina, A. Adams, var. Uveana, Mousson, Jour, de 

 Conch., 1865, p. 177. Schmeltz, Cat. Mus. Godeff., iii, p. 28. Pease, 

 Proc Zool. Soc, 1871, p. 477. Paetal, Cat. Conch., p. 114. Pfeiffer, 



