88 BOOK OF SPECIES. 



rounded; the inner margin of the lip dentated. 

 li. W. 25. 24. 



MUREX. 



Oval or oblong, channelled at the base; rough, 

 spinous, or tubercular varices on the exterior 

 surface ; mouth rounded, or sub-oval ; three or 

 more varices on each whorl of the spire ; the 

 lower ones uniting obliquely with the upper 

 in uninterrupted longitudinal rows ; operculum 

 horny. 



* Beak longer than the aperture. 

 M. coRNUTUs. Somewhat club-shaped^ ven- 

 tricose above, with a long beak, transversely stri- 

 ated; whitish, zoned with yellow or rufous ; body- 

 whorl large, and armed with two .rows of long 

 curved thickish cleft spines; spire very short; 

 beak with a few scattered spines, perforate. 6. 

 W. 25. 5. 



M. BRAND ARis. Club-shapcd, furrowed, with 

 seven varices, ventricose above ; beak short, ashy 

 white, with two rows of spines, which are thick, 

 straight, short, and cleft ; spire rather prominent, 

 muricated ; an oblique row of spines on the tail ; 

 mouth orange. 3^. W. 25. 6. 



M. CRASsispiNA. Ventricose above, with a 

 long beak ; three rows of long stout spines, thick- 

 ened towards their base, extend the whole length 



