160 CANTHARUfc. 



oblong-ovate, lip thickened within, obsolctely plicate at margin, 

 columella smooth, canal rather long, reflected. 



Length, 9-10 mill. 



Papuan Is. 



Not figured. Said to be distinguished from G. puncticulatus 

 by the smaller size, the smaller number and greater size of the 

 spiral lirae and costse and by the angular whorls of the spire. 

 C. LANCEOLATUS, Koch. PI 74, fig. 274. 



Yellowish, white banded. Length, 13 mill. 



Nab. u-n known. 



A shell of doubtful generic position, described as a Fusus, but 

 which Philippi remarks, might as well be referred to Murex, 

 Purpura or Pyrula, the animal and operculum being unknown. 

 C. FILARIS, Garrett. 



Shell solid, elongate, slenderly fusiform, light brownish, with 

 whitish mottlings and spirally lineated with deeper brown ; whorls 

 seven, convex, longitudinally and spirally ridged ; ridges small, 

 granulated at their points of intersection ; the transverse ones 

 alternately larger and smaller ; base contracted and produced 

 into a short, slightly -twisted canal ; aperture oblong, ovate, tawny 

 yellow and lirate within ; columella with several small nodules. 



Length, 16 mill. 



Samoa and Viti Isles ; very rare, under stones on reefs. 



Unfigured. 



0. GRACILIS, Reeve. PI. 74, fig. 275. 



Whorls a little granulated in the middle, crossed by longitudi- 

 nal and transverse obtuse, granose ridges. Whitish, longitudinal 

 rows of granules orange-brown. Length, 1*25 inches. 



Isl. of Masbate, Phi1ii>i>incx ; under stones at low water. 



I suspect that this and the following species are really identical. 

 Their generic position is somewhat doubtful ; they might as well, 

 I think, be ranged with P. marmorata,, Reeve, in the genus 

 Pisania. I have before me sonic 1 shells collected by Mr. (iiirrett 

 at the Viti Islands which may possibly belong to this species. 

 C. CROCATUS, Reeve. PL 74, fig. 276. 



Longitudinally very closely plicated, transversely granosely 

 ridged. Saffron-orange, speckled here and there with white ; 

 striae between the ridges of a darker orange-brown. 



Length, 27 mill. 



Isl. of Gapul, Philippines. 



