306 PARTULA, PELEW ISLANDS. 



cate; aperture very oblique, rounded, ovate; lip white, mod- 

 erately reflected and concave ; the outer margin partaking of 

 the color of 'the epidermis ; columella wide above ; margins of 

 the peristome connected by a thin vitreous deposit ; a broad, 

 flat, pillar tooth far within the aperture. Color light fawn, 

 with dark brown oblique striae, apex dark brown. Length 17, 

 dram. 11.5 mm. ; aperture, length 7, width 4 mm." (Hartman) . 



Salibabu, one of the Talauer Is., between Gilolo and Min- 

 danao. 



Partula newcombianum HARTM., Proc. A. N. S. Phila, 1886, 

 p. 34, pi. 2, f..!3. Partula neweenitiarum HARTMAN, Nautilus 

 xi, p. 44 (typographical error). 



Dr. Hartman has recorded the loss of the type of this 

 species by shipwreck on its return voyage to Mr. Garrett at 

 Tahiti. The figure is a copy of his. 



"I received this shell from Mr. Layard, through Mr. A. 

 Garrett. In outline and general appearance it resembles some 

 varieties of P. varia. I have named it in honor of Dr. 

 Wesley Newcomb, one of our oldest . American conchologists, 

 well known for his writings on the allied genus Ackatinella 

 of the Sandwich Islands." (Hartm.) 



XI. PELEW ISLAND SPECIES. Section PALAOPARTULA n. sect. 



Straightly conic forms with high embryonic whorls and 

 very deeply engraved later whorls, the last compressed later- 

 ally and sack-like below, with a very ample umbilical area 

 and deep perforation. The aperture is unusually long, and 

 the peristome is thin and very broadly reflexed. Type 

 P. thetis. 



The three closely related forms from Pelelu (Pililu) stand 

 apart from all other Partulas. They have some appearance 

 of being a branch from the Melanesian group. The coloring, 

 the slight differention of a peripheral belt (marked with finer 

 spiral striae), and the high apical whorls, recall species of 

 the New Hebrides and Solomon Islands. 



102. P. LEUCOTHOE O. Semper. PI. 38, fig* 1. 



Shell openly and compressedly umbilicate, conic-pyramidal, 



