CANTHARUS. 161 



C. OBLIQUECOSTATUS, Reeve. PI. 74, figs. 2 7 7, 278. 



Longitudinally obliquely and very closely ribbed, ribs crossed 

 with small ridges. Brown-red, transverse ridges whitish. 



Isle of TicaO) Philippines. 

 C. CROSSEANUS, Souverbie. 



Fusiform, rough, longitudinally costate, cut into transverse 

 oblong granules by transverse sulci ; whorfe eight to ten, sub- 

 carinated, convex, suture well marked. White, tinged with light 

 chestnut ; body-whorl with a fulvous, median band ; bluish white 



within the aperture. Length, 13-20 mill. 



New Caledonia. 



Described originally as Var. Artensis of Pisania Billeheustii , 

 Petit (=marmorata, Reeve), this species occupies an anomalous 

 generic position : it has not been figured. 



C. ASPERA, Dunker. 



Oblong fusiform, with six or seven slightly convex whorls, 

 longitudinally densely plicate, crossed by roughly granose revolv- 

 ing ridges ; white variegated with brown. Length, 12 mill. 



Upolu. 



This species is compared with Pisania marmorata, Reeve, but 

 differs in its much smaller size, rougher sculpture, thicker longi- 

 tudinal ribs, suture not incised, canal much shorter, varicose 

 labrum, etc. It has not been figured. 



C. SAMOENSIS, Dunker. 



Ovate, subturreted, cancellated by thick longitudinal plicae and 

 revolving small ribs. White, unicolored or with interrupted 

 fuscous revolving lines, under a pallid corneous epidermis. 

 Whorls convex, with distinct suture, the last but little longer 

 than the spire ; canal deep, widely open. Length 14, lat. 7 mill. 



Samoan Isles. 



Not figured. 



C. AUSTRALIS, Pease. PL 73, fig. 269. 



Dark purplish or reddish brown, encircled by an irregular 

 broad whitish band, or irregularly spotted, grooves reddish. 



Length, 14, diam., 6 mill. 



New South Wales, Australia. 



If G. unicolor, Angas, prove to be the same species, it will have 

 priority over Pease's name. 

 21 



