1880.] NATURAL SCIENCES OF PHILADELPHIA. 229 



DESCRIPTION OF A PARTULA SUPPOSED TO BE NEW, FROM THE ISLAND 



OF MOOREA. 



BY W. D. HART MAN, M. D. 

 Partula Mooreana, Hartman. 



Shell sinistral, ovate, elongate, thin, translucent, pale yellowish 

 horn-color, apex darker ; whorls 5, flatly conA-ex, bod^^-whorl, with 

 or without from one to three narrow, pale, brown revolving bands ; 

 surface smooth, with fine, oblique striations, which are decussated 

 by crowded waved spiral striie ; a narrow white line beneath the 

 suture ; aperture hearh'- half the length of the shell, lip white, 

 moderately reflected, pillar tooth oval, prominent, situated nearest 

 the superior angle, umbilicus open, moderately compressed. 



Length 18 mill., diameter 9 mill. 



Hab. — Yaianai Valley, Island of Moorea (Andrew Garrett, Esq.). 



In one hundred and fortj^-six species and varieties of Partula 

 represented in my collection, this shell possesses constant and 

 well-marked specific characters. Mr. Garrett informs me that 

 fifteen hundred specimens were all sinistral and dentate. The 

 surface of the shell resembles P. spadicea and varieties from 

 Moorea in possessing the thickly crowded waved spiral striffi. 



This species is arboreal, and is not uncommon on bushes, in 

 Yaianai Valley, the metropolis of P. vexiUum Pse. = P. steiiostoma 

 Ph. 



