depofited if the fly is of the viviparous kind, foon 
find their way farther up the inteftines, and often 
penetrate even into the ftomacli. After diefe 
Worms have had fafficient time to arrive at their 
tieftined growth, they naturally quit their abodej 
and, advancing towards the lovv'er parts of the in- 
teftineSj are either voided with the dung of the 
horfe, or crawl out fpontaneoufiy. 
The figure of thefe Worms does not prefent us 
with any thing fingular. They are fomewhat of a 
conic fliape, their heads being pointed, and their 
pofteriors broad. They are of different colours, 
fome being greenifh, others yellowifh, and fome 
brown. They are each provided with two crufta- 
ceous hooks, by which they lay hold of any fub- 
ftance, and fo move themfelves along; and this 
prevents their being forced out with the excrements 
of the animal. 
When there is only a fnall quantity of thefe 
Worms lodged in the vifcera of a horfe, they 
feldom prove injurious to his health: but they 
fometimes encreafe fo prodigioufly, as to bring on 
the moft dreadful diftempers ; and, in fome years, 
when numbers of horfes have died of an epidemic 
malady, on opening their inteftines, vaft muki- 
tudes of thefe infefts have been found alive in their 
fhomachs, each having eat itfelf a fort of cell in the 
membrane of the ftomach, and all being lodged 
there together as clofeas thefeeds in a pomegranate. 
Wiien thefe Worms naturally quit their original 
abodes, they crav/1 about till they find fome place 
of iecurity, where they form fhells of their fl-iins ; 
and, after paffing through all their various tranf- 
formations, attain their laft and moft perfc£l: ftate. 
As a cure for Worms in horfes, clyfters of oil 
are generally prefcribed; but this mode of treat- 
ment is probably inefficacious, as oil, though it 
may increafe the lubricity of the parts, and tend 
to deprive fome of the infefts of their hold, is cer- 
tainly not fatal to the exiftence of one individual. 
HORSEIMAN. An appellation given to a 
bird about the fize of the pigeon, called by the 
French Chevalier. See Chevalier. 
HOTAIMB.^IA. A fpecies of ferpent found 
in the Eaft Indies, of a greyifh yellow colour, and 
a very fc^tid fmell. 
HOTTENTOT FISH. This fifli is fo 
called becaufe the Dutch firft purchafed fome of 
them from the Hottentots. There are two or 
three varieties of them ; one of which has it's back 
and fides of a blackifii colour, and it's head of a 
dark purple. Another variety is of a deep blue, 
and feems to be fpotted. The firft fort is fome- 
what rounder, broader, and fliorter, than the fe- 
cond. It v/eighs about a pound, and is feven or 
eight inches long. 
Thefe fifh feed on fea- weeds, and any offals that 
happen to be thrown into the water. The Hot- 
tentots catch them with angles, whiftling and mak- 
ino- a great deal of noife at the fame time: and 
^ . ... . 
imagine that this device induces them to bite the 
fooner. Their flefti is wholefome and well tafted; 
and, when the fiftiermen cannot difpofe of it frefh, 
it is faked and dried in the fun, and fold to fuch 
mariners as happen to touch on the coaft. 
HOUND. Hounds may be diftinguifhed, 
with regard to their manner of hunting, into fuch 
as difcover and purfue the game by fight, and the 
quicknefs and fwiftnefs of their motions ; of which 
kind are the Gaze-Hound, the Grey-Hound, and 
the Terrier: and thofe which find and purfue the 
game by the excellence of their fcent; of which 
there are feveral varieties. See Doc. 
HUM 
HOUND-FISH. An appellation given to 
two different fifties of the fqualus genus ; one dif- 
tinguiflied by the name of the fmootl], and the 
other by that of the prickly Hound. See Ga- 
LEus h/Evis, and Galeus Spinax. 
Willughby, and ichthyologifts in general, men- 
tion another fpecies of Hound-Fifli, called the 
Starred Hound, or Galeus Afterias; but Artedi 
confiders this only as a variety of the Smooth 
Hound-Fifti. 
Another fpecies is likewife mentioned by fome 
naturalifts, called the Rough Hound-Fifti, or Mor- 
gray, the Pefce Gotto of the Italians, and the Catu- 
his Minor of clafiical writers: however, Artedi dif- 
tinguifties it from the other fpecies only by the ap- 
pellation of th.e fqualus with a variegated back 
and the ventral fins concreted. See Catulus and 
Squalus. 
HOWLET. A bird of the owl kind, fo called 
fiom it's mournful, howling voice. It is as large 
as the pullet, and meafures eighteen inches to the 
extremity of the tail. The head, back, wings, and 
tail, are cinereous, fpeckled with white and black 
fpots; tlie head is large, round, and thick of feathers; 
and the wings reach to the extremity of the tail. 
HowLET OF Gesner. This variety is larger 
than the hen; the colour is a mixture of red and 
black; between the eyes and on tlie back there are 
fome cinereous feathers; and the legs are whitiili 
with livid-coloured fpots. 
FIUBARI. The name of a bird frequently 
mentioned by Arabian authors; and defcribed as 
being fomewhat larger than the goofe, with ' ery 
Pnon wings in proportion to it's bulk. It is faid 
to be common round Damafcus, and to afford 
much diverfion to the Syrian fowlers. It is pro- 
bably of the buftard kind; but v/e are not fur- 
niflied with accounts ftufficiently explicit to pro- 
nounce with certainty on this fubjed. 
HUCK. An appellation fometimes given to 
the German river-trout. It bears a ftrong refem- 
blance to the comm.on trout in fliape, but it's back 
is covered with an infinite number of black fpots. 
It's fides, which are red, contain a few black fpots ; 
it's under-jaw has alio ibme fpots ; but the reft of 
it's head is entirely of one colour. 
HUITINGO POLLACHIUS. A name 
fometimes given to the fifli commonly known in 
England under the appellation of the whiting pol- 
lack. It nearly refembles the whiting in fhape, 
but is much larger, broader, and thinner; and it is 
diftinguiftied from the cod by the fmallnefs of it's 
head, the broadnefs of it's body, and being dcfti- 
tute of a beard. This fifti, which is common in 
the northern f.^as, is much efteemed for the table. 
HUMBLE BEE FLY. A clafs of Flies 
comprehending various fpecies of different fizes, 
but all agreeing in the great refemblance they bear 
to the Humble Bees of the fmaller or middle-fized 
kinds. At firft view, they might naturally enough 
pafs for real Humble Bees; but, on a clofer exami- 
nation, it will appear that they are deftitute of 
trunks, and furniftied with only two wings: how- 
ever, the fpecies of the Humble Bee Fly are many 
of them different genera from each other, fome of 
them having trunks, and others diftinguiftiable 
mouths. 
Nature has affigned the worms produced from 
thefe Flies a very fingular habitation: they are 
lodged in the inteftines of horfes, or under the thick 
and firm ikins of oxen. In the latter cafe, the 
worm hatched from the egg of it's parent Fly, de- 
pofited there, forms a tumour which furnifhes it 
with 
