32 



VOLUl^\ scalaris. 



TAB. DCXXV— ^g^. 4& 5. 



Spec. Char. Ovate, ventricose, costated and trans- 

 versely striated; costse numerous, with two 

 nearly equal small spines on the upper part of 

 each ; striae distant, equal ; spire shorterthan 

 wide, acute ; base attenuated ; whorls with a 

 narrow flat space between the upper row of 

 spines and the suture, and concave between 

 the two rows of spines. 



A SMALLER, more inflated and more regularly shaped 

 shell than V. spinosa : the narrow costae, numerous, nearly 

 equal spines, and regular, sharp striae, which continue 

 almost up to the lowest spine, give it an aspect by which 

 it may easily be recognized. It occurs plentifully at Bar- 

 ton, but seldom exceeds an inch and a quarter in length. 

 The variety /3 of V. spinosa, t. 115, approaches to it, but is 

 less rather than more inflated, and has a portion of the last 

 whorl smooth. 



VOLUTA depauperata. 

 TAB. DCXXV.— /g-. 6, &396./g'. 4. 



\ HIS figure of a rare species is given to show the young 

 state, and the coloured stripes which are constantly obser- 

 vable, but were obscure and therefore omitted in the spe- 

 cimen formerly figured. Of five individuals I have seen, 

 the largest is an inch and three quarters long. 



