1 30 COCHLOSTYLA-CALOCOCHLEA. 



As subsections of r.ihcochlea, therefore, we may range the follow- 

 ing groups: 



Subsection 1. CALOCOCHLEA Hartm., 1840. 



Subglobose or globose-depressed, the periphery rounded. Surface 

 with oblique light growth-lines, and on the whorls of the spire, fine 

 spirals, often subobsolete ; hydrophanous cuticle generally present. 

 Type, ( '. pukherrima. 

 Subsection 2. AXINA Albers, 1850. 



Varying from globose-turbinate to carinated and lens-shaped ; 

 solid, dark-colored ; hydrophanous cuticle present. Surface totally 

 lacking spiral stria 1 . Type, 0. zebuensis. 



Subsection 3. TRACHYSTYLA Pilsbry. 



Solid, globose-depressed, dark colored, with a thin ashen hydro- 

 phanous cuticle ; surface rough and lusterless. Whorls few. Type, 

 C. crypt ica. 



Subsection 1. CALOCOCHLEA Hartm. 



Includes Semper's " 3 Gruppe, Calliocochlias Ag." and "4 Gruppe> 

 Cochlottylu' hypomelanice Mts." 



(1.) Group of C. cromyodes. 



Globose or globose depressed shells, thin rather than solid, yellow 

 or reddish, not conspicuously marked with hydrophanous cuticle, 

 and frequently lacking it entirely. 



These shells connect the ('. intorta group of Corasia with Cah- 

 cochle<i. The dividing line is extremely difficult to locate, but still 

 there is some difference, as these shells have a wider lip, and gener- 

 ally have more or less hydrophanous cuticle, characters not found 

 in 



( '. . ROMYODES Pfeifier. PI. 2!>, figs. 13, 14, 15, 16. 



Imprrf'orate, rather thin, depressed-globose. Surface microscop- 

 ically spirally striate, having light growth-lines. Color varying 

 from greenish-yellow to reddish-brown, the upper whorls purple, edged 

 \\ith darker purple. Hydrophanous cuticle either absent or form- 

 in- hand- at suture and periphery, with narrower intervening bands 

 or line-. 



