192 PARTULA, TAHITI. 



are figured. There is also a bandless form, dark chestnut 

 colored with darker and lighter oblique streaks, which may be 

 called variety confluens (pi. 26, fig. 11). 



12. P. STENOSTOMA Pfeiffer. PI. 27, figs. 12, 13. 



Shell umbilicate, dextral, oblong-conic rather solid, closely 

 striolate, glossy; fulvous clouded with brown and brightly 

 three-banded with chestnut. Spire long-conic, rather acute; 

 suture lightly impressed, whitish. Whorls 5y 2 > but a trifle 

 convex, the last shorter than the spire, somewhat compressedly 

 rounded at the base. Columella running forward obliquely, 

 slightly plicate above. Aperture a little oblique, narrow, 

 truncate-oblong, narrowed by a deeply placed, tooth-like 

 callus on the penultimate whorl. Peristome callous, white, 

 expanded and slightly reflexed throughout, the right margin 

 sinuated above. Length 22, diam. lO 1 /^, aperture with peris- 

 tome 11 mm. long, 5 wide inside (Pfr.). 



Habitat unknown (Cuming coll.) 



Partula stenostoma PFR., P. Z. S. 1855, p. 97 ; Novit. Conch, 

 p. 61, pi. 17, f . 16, 17 ; Monogr. iv, 507. Cf. GARRETT, Journ. 

 A. N. S. Phila. ix, p. 52. 



In my copy of Pfeiffer's figure (pi. 27, fig. 13) the small 

 parietal tooth was omitted by oversight. It is very indis- 

 tinctly drawn in the original figure, and should resemble that 

 of fig. 9 of the same plate. 



P. stenostoma was not identified by Mr. Garrett. The 

 positions of the bands eause me to think it related to affinis 

 Pse., and dubia Garr., but it differs from these and other 

 forms of P. otaheitana by the narrow shape of the aperture. 

 Dr. Hartman has referred stenostoma, to P. vexillum Pse. ; 

 and it has a certain resemblance to the Raiatean P. planila- 

 brum and P. vittata. 



13. P. PRODUCTA Pease. PI. 27, figs. 1, 2, 3. 



The shell is dextral, long-ovate, deeply rimate, rather solid, 

 moderately glossy; yellow or brownish-yellow with three dark 

 chestnut bands, a pale sutural band above the upper one, 

 the middle band widest, the lower one defining a light umbili- 



