260 TECTARIUS-MODULUS. 



on the upper part of the whorls, flesh white, interior yellowish, 

 columella flesh purple. Length, 22 mill. 



Mouth of Swan River, Australia. 



T. GRANULARIS, Gray. PL 48, figs. 84, 85, 79-81 ; PI. 45, fig. 4. 



Ovately ventricose, closely spirally striate, the strise minutely 

 granose on the upper part of the whorls, yellowish white or ash 

 colored, sometimes marbled, columella and aperture chocolate 

 color, the latter with a white basal band. Length, 9 mill. 



Loochoo and Viti Is., Red Sea, Japan. 



L. millegrana, Phil. (fig. 85), T. cinereus, Pease (fig. 81), T. Vi- 

 tiennis, Dunker, T. plena, GodefFr. Cat., T. radiata, Souleyet (fig. 

 4), T. exigua, Dunker, T. ventricosa, Phil, are synonyms. 



Var. SUBGRANOSUS, Dunker. Figs. 79, 80. 

 Whorls slightly shouldered. 



Madras. 



Unfigured Species of Tectarius. 



T. CECILLEI, Phil. Loochoo Is. 



T. LUTEA, Gould. China Sea. 



T. RUBRA, Anton. Hob. unknown. 



Genus MODULUS, Gray, 1840. 



M. TECTUM, Gmel. PL 48, figs. 87-89. 



Subperforate, inflated, tumidly convex above, with distant, 

 rounded, oblique plications, spire depressed, suture well impressed, 

 whole surface spirally striate, strise often alternately larger ; whitish, 

 marbled and lineated with light chestnut, aperture white, closely 

 ridged, sometimes chestnut margined. Diam. 28 mill. 



Sandivich and Viti Is., Indian Ocean, Red Sea, Mauritius. 



M. retusus, Brug., M. obtusatus, Phil. (fig. 89), M. cidaris, Reeve 

 (fig. 87), M. candidus, Petit (fig. 88), are synonyms. 



M. FLORID ANUS, Conr. PL 48, fig. 90. 



Suborbicular, whorls convex above, with subnodular radiating 

 ribs, terminating above a peripheral spiral rib ; below the periphery 

 are several spiral, subnodular ribs and equal interspaces, which are 

 striated ; whitish, with chestnut small spots on the ribs, interior 

 white or violaceous. Diam!*15 mill. 



West Coast of Florida. 



