UNIVALVES. 



PLATE XXVII. 



Genus. BUCCINELLA. 



Character. Shell spiral and rotund; cheek projecting; rostrum short : columella 

 having three flutes ; umbilicus standing behind the columella ; the mouth and the 

 maxilla oris slightly decussated or fluted ; spire short and rounded. 



Species. 



No. 1. Buccinella canulata. Shell pale red, with broad stripes of white 

 running round the body, carunculated longitudinally, having three large 

 teeth on the columella, the uppermost most conspicuous. 



No. 2. Buccinella rotundata. Shell round, and projecting in its form, varie- 

 gated with transverse stripes of dark brown and white. A native of the 

 South Seas. 



No. 3. Buccinella quadrata. Shell striped transversely brown and white ; 

 mouth carinated, of a brown colour ; the spire rather longer than most of 

 its congeners, and carinated, with the rim of the mouth white and project- 

 ing forwards. 



No. 4. Buccinella ccerulea. Shell of a sky blue colour ; the mouth of a dark 

 gray, the rim of the mouth very broad and expanded outwards ; three very 

 prominent teeth standing upon the columella ; edges of the mouth of a pale 

 orange colour. This shell is very rare, and has been described, but not 

 very well figured, by the German Conchologist Martini. The original is in 

 the noble Collection at the British Museum. 



No. 5. Buccinella carinata. Shell of a pale red, closely striped with a small 

 red pattern ; form rounded and projecting. A native of the South Seas, 

 and supposed to be rather scarce ; the pattern is in all respects particular, 

 and considerably different from its congeners. 



No. 6. Buccinella acuta. Shell of an olive colour, pointed in its general form 

 and having a white margin. 



No. 7. Buccinella tuberculata. Shell closely streaked with brown and gray 

 lines ; the mouth of a rich orange colour. From a specimen brought from 

 Amboyna, in the Collection of the Author. 



REMARKS. 



The difference of the columella in the genus Buccinella distinguishes it in a manner from 

 all other shells ; perhaps it has a distant resemblance to the Voluta genus ; but the latter 

 has four flutes, while the Buccinella has only three. The form of the cheek is also different, 

 being strongly tuberculated inwardly with irregular indentations. The umbilicus also is a 

 remarkable feature in the character of this genus. The species seem not to be very nume- 

 rous, if we may be allowed to judge by the rarity of them at present. They differ from the 

 genus Volutella in not having the conical form, which is peculiar to that genus. It appears 

 that several of the fossil shells recently discovered in France as well as in England, are truly 

 reconcileable to this genus, which we here present to the Conchologist, for the first time, 

 and as highly worthy of his attention. 



