LIOTIA. 109 



L. CLATHRATA, Reeve. PI. 36, fig. 95. 



Somewhat discoidal, with rounded whorls, regularly latticed hj 

 equidistant spiral and longitudinal ridges, the former more prom- 

 inent, lip varicose, umbilicus very large. Diam. 12 mill. 



Philippines, A ustrcdia. 

 L. GRANULOSA, Dunker. PI. 30, fig. 96. 



Depressed subglobose, with rounded whorls, with spiral riblets, 

 which above are granular, umbilicus wide ; whitish or rosy, some- 

 times w^iite with the ribs colored. Diam. 6*4 mill. 



Cape of Good Hope, Mauritius 



It is Monilea spuria, of Gould. 



T. SEMiCLATHRATULA, Schrenck. PI. 36, figs. 98-100. 



Dej^ressed turbinate, whitish, spirally costate, the costpe slightly 

 tuberculate above, suture channeled, lip crenately varicose, umbili- 

 cus large, bicarinate within, crenulately margined. 



Diam. 6'25 mill. 



Amur region, E. Asia. 

 L. FENESTRATA, Carp. PI. 36, fig. 97. 



Depressed, clathrate by equidistant spiral and radiating riblets, 

 with deep interstices, sculpture terminating with a spiral ridge sur- 

 rounding the rather wide, deep umbilicus. Diam. 4*5 mill. 



Catalina IsL, California. 

 L. ACUTicosTATA, Carp. PI. 36, fig. 1. 



Turbinate, with revolving riblets, which are more or less nodose 

 above, imperforate. Diam. 4 mill. 



Catalina IsL, California. 



L. CANCELLATA, Gray. PI. 36, fig. 2. 



Turbinate, whorls convex, regularly latticed with equidistant 

 spiral and longitudinal ribs, umbilicus moderate, defined by a spiral 

 rib. Diam. 5 mill. 



Cohija, Peru. 



L. Cobijensis, Reeve is a synonym. 



Has the sculpture and umbilicus of L. fenestrata. Carp., but is 

 more elevated. 



L. DiscoiDEA, Reeve. PI. 36, fig. 3. 



Discoidal, with flattened spire, periphery with two prominent 

 ribs, connected by lattices which subspinously project, surface Avith 

 clathrate ridges, the interstices of which are finely striated. 



Philippines. 



No dimensions are given, but the figure is said to be magnified. 



