104 TEINOSTOMA. 



T. PUNCTATTJM, Jousseaume. PI. 34, figs. 48, 49. 



Depressed convex, solid, subtranslucent, yellowish white, more 

 flattened below, umbilicus almost covered, surface covered by mi- 

 croscopic, close granular spiral striae, more apparent at the suture 

 and around the umbilicus. Diara. 2 - o mill. 



Prince's IsL W. Africa. 



T. MORLIERI, Joiisseaume. PL 34, figs. 50, 51. 



Subopaque, milk-white, slightly convex above, nearly flat below, 

 umbilicus almost completely covered, suture narrow-margined, 

 surface microscopically spirally striate. Diam. 3'5 mill. 



Martinique. 



In this species the heavy umbilical callus joins at a somewhat 

 acute angle with the ci lamellar lip, of which it is an extension, the 

 angle forming a pit. 



T. LUCIDUM, A. Adams. PI. 35, figs. 58, 59. 



Depressed orbicular, smooth, white, spire enveloped with callus, 

 umbilicus covered by a heavy, convex callous deposit, aperture a 

 little oblique. Diam. 1'5 mill. Japan. 



T. AMPLECTANS, Carpenter. PI. 35, figs. 60, 61. 



Depressed-convex, white, whorls very rapidly increasing, spire 

 small, last whorl large, oblique, periphery subangulated, aperture 

 subtriangular, umbilical region covered by d large callus. 



Diam. 2'5 mill. Miz<itl<m. 



T. SUBSTRIATUM, Carp. PI. 35, figs. 62, 63. 



Shining, smooth, white, very minutely impressly striated near the 

 suture, callus strong,convex, narrow, coiling round the umbilical 

 fissure, lip thick. Diam. 2 mill. Mazatlan. 



T. DIAPHANUM, d'Orb. PI. 35, figs. 64, 65. 



Depressed orbicular, thin, diaphanous, vitreous, smooth, shining, 

 white, umbilicus slightly callous, whorls convex, rather slowly in- 

 creasing. Diam. 1'5 mill. 



St. Thomas, W. L 

 T. CARINATUM, d'Orb. PI. 35, figs. 66, 67. 



Depressed convex, lenticular, periphery strongly carinated, the 

 cariua forming a sutural margin above, smooth, thin, diaphanous 

 white, umbilicus minutely callous. Diam. T5 mill. 



St. Thomas, W. I. 



