184 ^e Hiflory of ANIMALS. 
formed of fix volutions: the mouth is of an oval figure, but it is little, and is edged 
with a pale, nanow lip : the whole furface of the fhell is fmooth, and the colour a 
pale brown, with a tinge of olive ; the volutions of the clavicle are tumid or rounded 
and are all very diftind and beautiful * 
We have this in great plenty in Hackney river, and in feveral other of the (hallow 
and fwift rivers in moil parts of England. 
Buccmum brev?, ventricofum ore parvo rotundo. 
The foort y tumid Buccinum^ with a very fmally round mouth . 
This is about half an inch in length, and is as much in diameter ; it’s figure is very 
fingukr, and wholly unlike that of all the other fpecies: the body of the fheli is lefs 
diftinit from the clavicle, than in the generality of this genus; and the whole fhell 
appears, as if it had been deprefled or crufhed together from the fummit to the mouth ; 
the body is of once and a half it’s length in diameter; and the mouth, which is fmall’ 
and perfectly and regularly round, is connected to it, as it were, by a neck: the cla¬ 
vicle has only three volutions, and thofe fhort, but very diftind, and it terminates ob- 
tufely j the fubfiance of the (hell is thin and tender, and the colour a pale brown. 
I firft met with it in the little river that runs under the town of Mount Sorrel in 
Leicefterfhire ; k is not common with us. 
Buccinum angujlius margine volutionum dentaio . 
The narrow Buccmumy with the edges of the volutions dentated. 
this is an elegant ^fpecies; the length is an inch and a half, and the diameter is 
barely naif an inch • the fubfiance of the fhell is moderately thick, and it’s colour a 
reddnh-brown : the body is not large in proportion to the reft of the fliell, and it’s 
figere is oval 5 the mouth is large and oblong • the clavicle is very large ; it confifts of 
five volutions, all broad, flat, and diftind, and the edge all the way elegantly denticu¬ 
lated ; the fummit is obtufe : it is a rare fpecies. 
I found it in feveral of the rivers of Warwickfhire, but not abundantly in any of 
them, and in very few others. 
Buccinum heterofirophum ore ovato. 
The oval-mouthedy heteroflrophous Buccinum . 
This is a very Angular fpecies • the volutions running in a contrary diredion to thofe 
of the others, and the mouth conlequently handing the wrong way : the fhell is 
half an inch long, and nearly as much in diameter, and is fo extreamly thin and ten¬ 
der, that it is not eafy to touch it without breaking it: it’s colouy is a pale brown, 
with a tinge of yellow 5 the body is very large, and of an oval form j the mouth alfo 
is large, but it is not nearly of the fize that fome of the firft fpecies have it, it’s open¬ 
ing not reaching the whole length of the body • the clavicle has only three volutions, 
and thofe fmall but diftind, and it’s fummit pointed. 
We have it in fome of the fhallow ponds and ditches about Tothil-fields, and in 
our fifhponds in many places. 
The other fpecies of frefh-water Buccina are, 1. The little, thicker, brown Buc¬ 
cinum. 2. The larger, thicker, deep brown Buccinum, with a fmall mouth. 3. 
The large, brown Buccinum, with a fhort clavicle. 4. The fmaller, greyifh Bucci¬ 
num, with a pointed clavicle. 5. The larger and thicker, fmall-mouthed Buccinum. 
DOLIA, GLOBOSE S FI ELLS. 
Dolium fufeum ore maximo expanfo . 
The brown Doliumy with a very largey expanded mouth . 
'^jpHIS is about three quarters of an inch long, and half an inch in diameter: 
I, the body of the fliell is tumid, and, as it were, inflated, and the clavicle is 
very fhort and inconfiderable ; it confifts of four very minute and indiftind volutions, 
and is pointed at the extremity: the mouth is extreamly large, and the lip expanded 
a great 
