MONODONTA. 119 



A. AD., P. Z. S., 1851, p. 177. 



LABIO RUDIS A. Adams. Testa orbiculato-conica, imperforata. 

 spira obtusa, lutescente, lineis transversis nigris ornata, longitudi- 

 naliter oblique striata, transversim subexarata ; labio complanato ; 

 columella antice subtuberculata ; labro nigro luteoque intus inar- 

 ginato. (A. Ad.) 



Australia. 



A. AD., P. Z, S., 1851, p. 179. 



LABIO CONCOLOR A. Adams. Testa turbinato-conica, imperforata ; 

 spira acuta, brunnea, longitudinaliter oblique striata, transversim 

 sublirata ; labio complanato, regione umbilical! impressa ; col- 

 umella arcuata, antice tuberculo terminata ; labro mgro-fusco 

 marginata. (A. Ad.) 



New Zealand. (Hart.) 



A. AD., P. Z. S., 1851, p. 180. 



M. GLABRATUM Gould. Testa globoso-conic, crassa, polita, fusco- 

 viridis, interdum ad verticem nigrescens et ad peripheriam pallidior, 

 ubique sulcis 4-5 cincta, interspatiis tessellatim sulcata ; anfr. 7, 

 convexis ; apertura ampla, rotundato-ovata, alba ; labro intus suleato ; 

 denti columellari acuto suleato. Axis 15, diam. 13 mill. (Gould.) 



China Seas. 



Has a general resemblance to, and may be a variety of, M. tuber- 

 culata ; but its rubbed look, tessellated rather than papillated surface, 

 and shorter axis distinguish it. (Gould.) 



GOULD, Proc. Bost. Sot. X. H., viii, 1861, p. 20. 



M. GRANULATA Gray. 



Shell rather depressed, conical, purple variegated with white, 

 generally concentrically wrinkled, and ornamented with granulated 

 spiral ribs, the ribs of the upper part of the last and of all the other 

 whorls rather distant, and forming four series ; those of the under 

 part rather closer and smaller ; the axis umbilicated, smooth, the 

 aperture roundish, the outer lips furrowed, the columellar lip smooth 

 with a groove at its base. 



Axis 4-12ths, diam. 5-12ths of an inch. (Gray.) 



J/. granulata GRAY, in Capt. King's Survey of Intertropical and 

 Western Coasts of Australia, ii, p. 479 (1827). 

 M. DENTICULATA Gray. 



Shell depressed, conical, pale reddish, ornamented with rows of 

 white and brown spots, spirally grooved ; ribs slightly granulated ; 



