MUBEX. 83 



portionally shorter and straight or but little turned to the right; 

 there are one or two spur-like spines on the varices at the lower 

 part of the mouth ; generally on the left-hand varix and some- 

 times on the back varix, but very seldom on the right hand or 

 lip varix ;. the lips of the mouth are tinged with more or less 

 brilliant orange color. I consider M. bella, Reeve, (fig. 135), a 



synonym. 



West Indies. 



M. AUSTRALIS, Quoy. 



Shell fusiform, a little ventricose, with long canal turned to the 

 left ; with revolving striae, and short tubercles on the varices. 

 Yellowish-white. The animal has short tentacles of a sooty 

 color, white towards the points, near which are placed the very 

 small eyes. The rest of the body is pale yellowish, mottled with 



white. Length, 33 mill., breadth, 14 mill. 



Port Western, Austr. 



This species has not been figured nor identified ; I think it 

 belongs to the Tribulus group. 



M. LIGNARTUS, A. Adams. 



Ovately fusiform, sub-umbilicated ; spire acuminate, reddish 

 brown ; whorls excavated above, with two medial, elevated, 

 nodulous lines; transversely lirate, the lines unequal, elevated, 

 rugulose ; longitudinally three-varicose, the varices with two 

 elevated spines ; aperture round-ovate, white within ; canal as 



long as the aperture, subrecurved. 



West Africa. 



This shell has not been figured nor are dimensions given. I 

 cannot, therefore, be sure that it belongs to this group. Sowerby 

 (Thes. Conch.) refers Ugnarius to M. quadrifrons; I do not know 

 whether it be this species, but the description of it does not agree 

 at all. 



M. HAUSTELLUM, Linn. PL 13, fig. 137. 



This well-know r n species will end the section of typical Murices. 

 Like M. chrysostoma it is never spinous. Adult specimens vary 

 from 2 to 6 inches in length. 



Red Sea, Ind. 0., China, Mauritius, Philippines. 



