114 



cose costated volutions, the last transversely striated in front 

 and with obsolete ribs on the front of the dorsal part ; aper- 

 ture oblong, rather broad, with a slightly fulvous peritreme ; 

 outer lip angular behind. 



A single specimen is in the collection of Mr. Petit de la 

 Saussaye, which he has obligingly communicated. It is not 

 Buccm. chlorostoma of Wood. 



10. Col. rustica. Lam. (pi. xxxvi. f. 19, 22, 24.) 



Col. testa ovato-turbinata, lsevi, albo-castaneoque reticu- 

 lata, prope suturas maculis albis angularibus stellatis ornata ; 

 spira breviuscula, acutiuscula, anfractibus 7? sub-ventricosis, 

 ultimo magno, plerumque transversim striato ; labio externo 

 intus denticulis albis, interstitiis plerumque fuscis. 



Shell ovate turbinated, smooth, chesnut coloured, reticu- 

 lated with white, and ornamented with white angular stellate 

 spots near the suture ; spire rather short and sharp pointed, 

 with 7 rather ventricose volutions, the last of which is large 

 and usually transversely striated : outer lip with small white 

 teeth within whose interstices are usually blackish brown. 



This species, which is common in the Mediterranean, 

 varies greatly in its proportions as well as in its colourings ; 

 C. acuminata of Nuttall, from Fayal, does not appear to 

 differ from the more acuminated varieties of the coast of 

 Sicily, of which a representation is given by Philippi. 

 The hairy epidermis distinguishes this species from Col. 

 fuscata. 



We believe that several of its varieties have been elevated 

 to the rank of species by Duclos, Kiener and others. 



11. Col. fuscata. Sow. (pi. xxxvi. f. 21. 25.) Z. P. 

 ii. p. 117. 



Col. testa ovato-acuminata, medio ventricosa, castanea, 

 albido-guttulata, epidermide fusca, lsevi, induta ; spira acumi- 

 nata : anfractibus J, ultimo maximo ; apertura elongata 

 flexuosa ; peritrematis albidi aut violacei medio intus denti- 

 culato ; columellas dimidio inferiore denticulato. 



Shell ovate, acuminated, ventricose in the middle, of a 

 chesnut colour with little white specks, covered with a smooth 

 fuscous epidermis, spire acuminated : volutions 7 3 the last 

 very large ; aperture elongated, flexuous ; peritreme whitish 

 or violaceous, denticulated in the middle within ; lower half 

 of the columella denticulated. 



Common under stones at Panama, St. Elena and Monte 

 Christe, H. Cuming. 



