126 TROCHOMORPHA. 



T. granulosa MLLDFF., Nachr.-Bl. 1888, p. 144 ; /. c., 1891, p. 43. 

 H. metcalfei var. PFR., Monogr. i, p. 121, and Conchyl. Cab., 

 t. 97, f. 15, 16. 



This species has been figured in Vol. Ill, p. 85, pi. 17, figs. 22, 

 23, as a variety of H. metcalfei. 



T. STRUBELLI Boettger. PI. 30, figs. 9, 10, 11. 



Shell perspectively umbilicated, the umbilicus nearly equal to one- 

 fifth the breadth of the shell ; depressed conical, rather solid, rather 

 shiny, olive-yellow, at the suture whitish, the carina white with a chest- 

 nut band above and below. Spire conic-convex, apex rather obtuse. 

 Whorls 6, a little convex, separated by an appressed, submarginated 

 suture, above regularly acutely striated, below distinctly spirally 

 lirulate ; last whorl acutely carinated, the carina compressed above 

 and below, the base slightly convex ; not descending in front. 

 Aperture diagonal, rhomboid-ax-shaped ; peristome straight, simple, 

 the upper margin lightly curved, basal distinctly arcuate ; columella 

 slightly so above. 



Alt. 5 J, diam. 10 mill. ; apert., alt. 3, width 4 mill. (%.) 



Gunung Salak, Java. 



T. strubelli BTTG., Bericht iiber die Senckenbergische naturfor- 

 schende Gesellschaft in Frankfurt am Main, 1890, p. 143, t. 5, 

 f. 5a-c. 



This beautifully colored Videna is far higher (ratio 1 : 1'82) than 

 T. planorbis (Less.) var. javanica Mouss. (ratio 1 : 2*17 to 1 : 3'13), 

 T. tricolor Mts. (1 : 2-50) and T. bicolor Mts. (1 : 2'00 to 1 : 2-42) ; 

 and from the last, its closest relative, it differs besides in lacking 

 spiral lines upon the upper surface, and in the sharply contrasting 

 spiral bands bordering the keel. (-B%.) 



T. CONCOLOR Boettger. PI. 30, figs. 12, 13, 14. 



Shell moderately umbilicated, umbilicus one-seventh the diameter 

 of the shell; conic-depressed, rather thin, shining; olive-brown; 

 spire depressed convex-conic ; apex moderately obtuse. Whorls 5, 

 slightly convex, separated by a lightly impressed suture, with an 

 acute, concolored hair-margin ; striatulate, without spiral lines ; the 

 last whorl carinated, the keel moderately acute, convex on the base, 

 nearly subangled at the cylindrical umbilicus, not descending in 

 front. Aperture diagonal, rhomboid-ax-shaped ; peristome simple, 

 upper margin slightly curved, basal angulate-arcuate, columellar 

 lightly protracted. 



