M \. 



impivss.-d s|)ir.-il '. i< >r yellowi-di In-own; ' 



ve\. havinir numerous line spiral Lines near the peripl,- 



ivl with low rils radiat ing (Von. the uiiil>. Inch 



they are nodulous. J)i:un. \'2 mill. 



lland. 



T. B08ULENTA, \Vat<on. PI. I',, iig. :M. 



I'mbilieiis very wide; whorls .">, shouldered with three or fmir 

 elevated spiral threads, hist whorl with numerous spiral thn 

 tin- upper tour of whieh are very strong; color ruddy-yellow 

 with bright crimson spots; umbilical wall with numcrou* spiral 

 threads; aperture round. Piain. C> mill. 



Port 



Unfyured and Doubtful Species. 



T. HIISKI. Mi'irch. 

 T. SULCIFKKA, Pease. 

 T. BICAKINATA, Phil. China Sea. 



Probably not a member of this family. 



T. TRICINCTA, Phil. Guinea. 



T. IMPLEX A, Mi^Ii. Oahu,. 



Subgcnus PSKUDOMALAXIS, Fisch., 1883. 

 T. ZANCLKA, Phil. PL 6, figs. 26-28. 



Shell _ minute, planorbifonn ; whorls qnadi'angular, periphery 

 Itroad, with a rib above and another below; color fulvous, 

 clouded with alternate light and dark; umbilicus verv wide; 

 aperture IK arly square. Operculum as in typical Torinia. 



Ditim. '>;") mill. 



Subgeiius GYRISCUS, Tiberi, 18C.7. 



T. JKKFRKTSIANA, Tiberi. PI. (\, li :o ; PI. 1, fig. 17. 



Shell turbinate; whorls 7, rounded, granular in spiral >. 

 suture profound, last whorl slightly depressed at the base; eolor 



yellowish, passing into a pale reddish brown; umbilicus moder- 



ate, deep; aperture subrotund, the margins united by a callous 

 deposit, colnmellar lip sinuous, retlected. closing a part of the 

 umbilicus. Piam. 8-9, alt. 10-11 mill. 



J/- <'a n. 



