The Hiflory of ANIMALS. 143 
The dark, blackifh, olive Cylindrus. 6. The yellow-olive Cylindrus. 7. The ele¬ 
gantly variegated, olive Cylindrus. 8. The olive Cylindrus, with the lower part varie¬ 
gated with brown. 9. The elegant, violet, Panama Cylinder. 10. The white Cy¬ 
linder, with yellow lines. 
MURE X. 
T H E Murex is a limple died, without any hinge, formed of a fingle piece, and 
befet with tubercles or fpines: the mouth is large and oblong, and has an ex¬ 
panded lip, and the clavicle is rough. 
The animal, which is the inhabitant of this (hell, is a Limax, 
The clavicle is in this genus fometimes exerted, fometimes deprefled j and the mouth 
in fome of the fpecies is dentated, and in others fmooth ; the lip alfo in fome is digi¬ 
tated, in others elated, in fome laciniated ; and the Columella in fome is fmooth and 
even, and in others rugofe. 
Murex per totum echinatus albefcens nigra 
variegatus. 
The whitijh murex, echinated all over , and 
variegated with black . 
This is a very lingular and very elegant Ihell: it is three inches and a half in length, 
and about two and a half in diameter in the larged: part : the clavicle is exerted and 
pointed, and the body of the fheli approaches to a conic form. It’s colour is whitilh, 
and it’s whole furface is wrinkled with circular furrows: it is furrounded alfo with a 
number of feries, of long, eredt, robuft, and lharp fpines j and the clavicle has alfo 
protuberances of the fame kind on it’s feveral volutions, but they are not fo long, and 
are more obtufe at the end: thefe fpines are all black, and there are alfo fome other 
black variegations on the intermediate parts of the Ihell, which give it a great deal of 
beauty, as well as lingularity, in it’s appearance. 
It is brought to us from the coad of Africa, and from the Ead Indies. 
Murex variegatus corpore echinato , clavicula Icevi . 
The variegated Murex , with the body of the Jhell echinated , a?td the 
clavicle fmooth. 
This is two inches and a half in length, and near two inches in diameter in the 
broaded part : it’s ground colour is a brownifh-white, but it is variegated with a very 
deep colour, feemingly formed of a mixture of brown, olive, and purple. On the body 
of the fheli, there dand three rows of fpines, placed at condderable diftances from one 
another, but connected by a ridge : the clavicle has about five volutions, and is fmooth: 
the dark colour is difpofed in fuch abundance on the fheli, that it feems at firdview the 
ground colour: the fpines are white, and add greatly to the beauty of the fheli. 
It was fird brought to us from the African coad, but we have it now from fome of 
the fhores of the Mediterranean. 
Murex fpinis excavatis , corpore rugofo inermi. 
The Murex , with hollowed fpines^ and with a naked rugofe body. 
This is a very fingular and very elegant fpecies: it is about two inches and a half in 
length, and, in the larged part, is nearly an inch and a half in diameter: the clavicle 
confids of about nine elegantly didindl volutions, the two lower of which have each 
a feries of imperfedt fpines on them : the body of the fheli is bellied, or didended, and 
has a number of deep longitudinal furrows on it: toward the top, or end, next thecla- 
vicicle there are two feries of fpines placed near one another j they are fhort, of a 
conic figure, and hollowed : the body of the fheli is then naked, till within half an 
inch of the other extremity, where there is another fingle row of them. 
It is brought to us from the Ead Indies, but it is a very rare fheli. 
Murer, 
