HELIX-CAM^ENA. 197 



Shell not malleated. 



H. XANTHOSTOMA Herklots. PL 26, figs. 4, 5, 6. 



Shell imperforate, subdepressed, obtusely angulated, rather solid, 

 closely, lightly plicatulate-striatulate, a little shining, olive-brown, 

 with scattered spots of buff ; spire short, obtusely conoidal; whorls 

 not over 4, slightly convex, the last deflexed in front, the angle 

 there vanishing ; aperture very oblique, quadrangular-lunate ; per- 

 istome thickened, narrowly reflexed, pale orange colored ; columel- 

 lar margin callously thickened, reflexed in a dilated plate over the 

 umbilicus. (Mart.} 



Alt. 24, greater diam. 50, lesser 36 mill. ; Aperture, alt. 24, 

 breadth 26 mill. 



Island of Batjan (' Bachan' or ' Batchiari) near Halmaheira, Mo- 

 luccas. 



Phania pyrostoma var. with yellowish lips, WALLACE, P. Z. S. 1865, 

 p. 408. Helix (Phania) xanthostoma (Herklots in Mus. Ludg. Bat.) 

 MARTENS, Landschnecken der Ostasiatischen Expedition, 1877, p. 

 327 ; and in Novit. Conch, v, p. 179, t. 151, f. 4-6. PFR. Mon. Hel. 

 Viv. v, p. 499. 



Apparently a well-marked species, differing from H. pyrostoma 

 and H. sulcocincta in lacking the strong malleation so conspicuous 

 in those forms. 



Section I. CAM^NA (Albers) Pilsbry. 



Camcena ABL. Die Heliceen, p. 85, 1850; 2d edit. p. 165, 1860, 

 type H. cicatricosa. Eucochlias THEOBALD in NEVILL, Handlist 

 Moll. Ind. Mus. pt. 1, p. 81, 1878 (in part.) 



Shell rather large, depressed globose or conoidal, dextral or sinis- 

 tral, solid, yellow or brown usually encircled by numerous chestnut 

 bands, of which one on the lower edge of the periphery is most 

 constant. Surface closely malleated or wrinkled all over; whorls 

 about 5-5 , the upper ones flattened, the last subglobose or carinated, 

 scarcely descending in front; peristome expanded or reflexed, its 

 ends not converging, columellar margin dilated over or partly over 

 the rather narrow umbilicus. The nucleus is rather large, (about 

 the diameter of the shell), consisting of 2 to 2* whorls, its junction 

 with the after-growth marked by a (generally) distinct line. The 

 young shells are acutely carinated. The columella is rounded. 



As constituted here, Camcena consists of species selected from the 

 groups Hadra, Phania, Cochlostyla etc. of previous authors ; on the 



