OCR 
The winged ones are black, and die others of a 
deep brown or cofFee-colour. Their trunks are 
very remarkable; they are more than twice the 
length of their bodies; and have not their origin 
at the extremity of the head, as in other infedts, 
but are fixed into the breaft, near the origin of 
the firft pair of legs. When the creature walks, 
it carries this trunk ftraight along the belly, and 
trailing a confiderable length behind it, but with 
the point reverted, that it may be out of the way 
of danger, and ready for adlion. When the infeft 
is inclined to fuck a part of the tree which lies 
juft before it, it draws up and contrails it's trunk 
till it brings it to a proper length and dircftion: 
but wlien it fucks in the common way, it adheres 
to the inner furface of the bark; and the reverted 
end of the trunk, which refembles a tail, fixes itfelf 
againft the wood behind or contiguous to the 
bark, and extradls the juices therein contained. 
The extremity of this trunk takes fuch faft hold 
of the wood, that, when pulled away, it fre- 
quently carries a fmall portion of that fubfbance 
along with it. 
OAK SNAKE. An appellation fometimes 
given to the dryinus. 
OBLADA. A name ufed by fome ichthyo- 
logifts to exprefs the melanurus of authors ; a filh 
of the fparus kind, diftinguifhed by Artedi under 
the appellation of the fparus variegated with lon- 
gitudinal lines, and with a large black fpot on 
each fide near the tail. 
OCELOT. This animal, to which Pennant 
gives the name of the Mexican ounce, and other 
naturalifts that of the Mexican cat and the cat- 
a-mountain, is of the feline kind, lefs than the 
ounce, but it's fkin more beautifully variegated. 
The fur is of a reddifli colour, beautified vv'ith 
black fpots and ftreaks of different figures ; the 
ears are tranfverfely ftriped with black, but in 
other refpefts refemble thofe of the cat ; and the 
tail is marked with fmall fpots at the bafe, and 
black ones at the extremity. Thefe colours, 
however, are not invariable, though minutely 
defcribed by fome naturalifts j for fome of thefe 
animals have been found entirely brown. 
The Ocelot, which inhabits Mexico, the vici- 
nity of Carthagena, and Brazil, lives in the moun- 
tains; is extremely voracious; but fearful of 
facing any of the human fpecies. It preys on 
various forts of game. Sometimes it lurks among 
the leaves of trees, and extends itfelf along the 
boughs as if dead, till the monkies, tempted by 
their natural curiofity, approach in order to ex- 
amine it, when they immediately become it's 
O'CHRA, OR GALLINULA OCHRA. A 
name fometimes given to a fpecies of moor-hen. 
The body is entirely of a dufky and obfcure yel- 
lowifli green colour, fomewhat brov/ner on the 
breafh and belly than on the back, but with the 
fame yellowifh green predominant; the head, 
neck, breaft, and wings, contain It'veral white 
fpots; the beak is pardy black, and pardy red; 
and the legs are yellowifli. 
OCHROPUS, OR GALLINULA OCHRO- 
PUS. An appellation given to the yellow-legged 
moor-hen. It is about the fize of the common moor- 
hen: it's beak and legs are yellowifh; it's back is 
of areddifn brown hue; the tips of it's wings are 
of a beautiful red colour ; and the head is marked 
with fine white variegations, which likewife appear 
in the middle of it's wings and belly. The largeft 
O I S 
wing-feathers are black; and there are alfo black 
fpots on the back. 
This bird builds it's neft in thickets ; and alfo 
among rufhes and high grafs, in watery fituations. 
OCTACTIS. A Li nnasan name for a fpecies 
of ftar-fifh of the aftrophyte clafs; the rays of 
v/hich are eight in number, vv-hcre they firft iffue 
from the body, but loon diverge into many 
more. 
OCULATA. An appellation given by many 
ichthyologifts to the fifti more ufually called mela- 
nurus. It receives the name Oculata from the 
remarkable largenefs and fine golden colour of 
it's irides. 
OCULIPETA. A fpecies of foreign fer- 
pent, of which naturalifts have furnilhed us with 
no difcriminating marks, 
OCULUS MARINUS. An appellation given 
by fome authors to the Umbilicus Marinus, fo 
called from it's refemblance to an eye. 
_ OCULUS VENERIS. A name fometimes 
given to the umbilicus marinus. 
GEDICNEMUS. An appellation given by 
Gefner and Aldrovandus to the charadrius; in 
Englifh, the ftone curlew. It is a pretty large 
bird, weighing about eighteen ounces: the beak 
is about one inch and a half long, ftraight„ 
pointed at the extremity, and partly black and 
partly yellow ; under the eyes there is a naked 
yellowifh green membrane; the breaft and thighs 
are white; the throat, back, and neck, are a 
mixture of reddifh brown and black; and the 
under part of the tail is reddifa. The legs are 
long and yellow; the thighs arc naked half way 
up, as in other aquatic fowls; and there are only 
three toes. 
This bird breeds very late in the feafon, it's 
young being often found callow about the end 
of Ofcober. It lives.principaily in watery places; 
and flies in the night-time, making a remarkable 
fhrill noife. 
CENANTHE. A genus of fmall birds, of which 
there are four fpecies: the common CEnanthe, 
called alfo the fallow-finch, or wheat-ear; the 
CEnanthe, called anthus and flerus, in Englifh, 
the whin-chat; the CEnanthe, named rubetra, 
in Englifh, the ftone-chatter, or moor-titling; 
and the CEnanthe Americana, called likewife 
guirarhu nheengeta. See Wheat-Ear, Whix- 
Chat, &c. 
CENAS. An appellation ufed by fome orni- 
thologifts to exprefs the ftock-dove, or wood- 
pigeon. It is fomewhat larger than the domeftic- 
pigeon, but generally of the fime fhape and co- 
lour. It's neck is of a fine varying blue, ac- 
cording as it is oppofed to different lights; it's 
breaft, ftioulders, and wings, are of a fine purplifb. 
or wine-red colour, whence it is alfo called vi- 
nago; and it's legs are red, and feathered a little 
below the joints. 
CESTRUS. A fpecies of fly; called alfo the 
gad-fly, and breeze- fly. 
In the Linnaean fyfliem, the GEftrus is a genus 
of two-winged flies, the mouth of which has nei- 
ther teeth nor probofcis. There are five fpecies. 
OlSEAU. A peculiar fpecies of oyfter, fo 
called by the French conchyologifts from it's re- 
prefenting a bird with the wings expanded. It 
has a fmall protuberance at the hinge, refembling 
a head; and a long procefs at the oppofite endj 
which bears a ftrong refemblance to a tail. It is 
externally of a duflcy reddifli colourj and inter- 
nally 
