(32 CALTPTKiED^. 



Genus TROCHITA. 



Testa trochiformis vel patelliformis, spiralis, infra concavo- 

 septiformis ; margine columellari refiexo, margine Lasali pro- 

 ducto. 



Shell trochus-shaped or patella-shaped, spiral, concave 

 below ; base septiform,columellar margin more or less reflected, 

 basal margin more or less prominent. 



Species. 



1. CONICA, f. 61, 62, Broderijp. — Rotunda subdepressa, 

 fulva, fasciis undulatis castaneis radiata ; spira parva centrali 

 anfractibus perpaucis, septo basali lato, sub-angulatim pro- 

 minenti. — A round limpet-shaped shell with a central apex. 

 The septum is broad and hatchet-shaped, with the front edge 

 prominently produced. 



2. ASPERSA, f. 63, 64, C. B. Ad. — Quam T. conica 

 tenuior, pallida, magis distanter radiata ; septo angustiori 

 baud tantum antice producto. — Like a small light miniature 

 of T. conica, with the septum narrower and less produced 

 in front. 



3. LICHEN, f. 65, 66, Broderi'p. — Subovata, depressa, albida 

 apice subcentrali, septo angusto, angulatim producto. — A 

 very flat, rather smooth ovate shell with a narrow hatchet- 

 shaped septum. 



4. AURiTA, f. 42, 43, Reeve. — Subdepressa, irregulariter 

 rotunda, radiatim serrato-costata ; apice laxe spirato ; septo 

 dolabriformi valde producto. — Front margin of fjeptum much 

 produced and rounded at the end of the projecting part. 



5. SUBREFLEXA, f. 67, 68, Cavpcnter. — Irregularis pallida 

 spinoso-costata; apice tumide spirali; septo late dolabriformi. 

 Strife or radiating ribs spinose, apex spiral with a second 

 tumid whorl ; septum broad, hatchet- shaped. 



6. FASTiGiATA, f. 72, 73, 74, Gould. — Rotunda conica, 

 sordida Iseviuscula, lateraliter convexa ; apice mamillato ; 

 septo obtuse trigono. — Not so depressed as S. sinensis. 



