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 (' Bachari* 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 qne on the lower edge of the periphery is most 

 constant. Surface closely malleated or wrinkled all over; whorls 

 about 5-5 J, 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 



