haeus exprefles a genus of lithophyta, in the clafs 
of worms: the charatlers of which are; that the 
■animal is a nereis; and that it is a coral, confiding 
of cylindric, hollow, ereft, and parallel tubes. 
He enumerates four fpecies. 
TUEULI VERMICULARES. A term by 
v/hich foifie naturalifts exprefs certain fmall ob- 
long 2nd hollow fea-fliells, refembling worms. 
TUBULUS MARINUS, or CANALJS. 
A genus of univalve fliells, of an oblong figure, 
terminating in a point, and hollow v/ithin, fo as 
to refemble a tube or horn. 
Thefe fhells are alfo called dentalia, from their 
refemblance to the tooth of a dog. See Shells, 
TUC \NA. A term whereby fome authors 
exprefs the Toucan. 
TUFTED DUCK. An Englifh name for 
the capo negro, a fpecies of duck. See Duck* 
TUI. A Brazilian appellation for the paro- 
quette. 
TUIAPUTEJUBA. A Brazilian paroquette 
defcribed by Marcgrave; of a beautiful green co- 
lour, but in different fhades, very deep on the 
wings, very pale, fomewhat yellowifh on the belly, 
and of a faint colour over the rell of the body. 
This bird is about the fize of a fwallow; and 
the eyes, which are large and black, are furrounded 
with a circle of yellowifh green featliers. 
TU IETE. A beautiful Brazilian bird of the 
paroquettS kind, about the fize of a lark, and en- 
tirely of a pale green colour, variegated with blue. 
The origin of the wings is blue; and there is a 
blue fpot on the rump. The tail is fhort; the 
beak is fmall, crooked, and of a pale red colour; 
and the legs and feet are grey. 
TUITIRICA. A Brazilian paroquette, fome- 
what larger than the common kind, entirely of a 
beautiful green colour, but of a deeper tinge on 
the back and wings. The beak is very hooked, 
and of a pale red colour; the eyes are black; the 
feet are blue ; and the tail is fomewhat longer than 
the wings when clofed. 
This fpecies is peculiarly efteemed in Brazil; 
as it is capable of being taught to fpeak, and 
tamed with the utmoft facility. 
TUMBLER; the Columba Revolvens of 
Moore, A well-known fpecies of pigeon, which 
receives it's name from it's peculiar quality of 
tumbling when on the wing. It is a fmall fowl, 
ihort-bodied, full-breaftcd, thin-necked, and nar- 
row-beaked; having a fmall fliort head; and the 
irides generally of a bright pearl colour. 
The Tumbler in this country is ufually of one 
plain colour ; black, blue, or white. The Dutch 
variety is nearly of the fame make; but has diife- 
rent colours, and is fomctimes feathered on the 
legs: it has alfo a larger head, and a thin flcin 
round the eyes. Some of the fineft pigeons of 
this fort are bred from a m.ixture of the Dutch 
and Englifh kinds. 
Thefe pigeons are reinarkable for the great 
heights to which they rife: they feldom ramble 
far from home; but mount in a perpendicular di- 
j-eftion till they almofl difappear; and at this ele- 
vation they will fometimes continue for hours. 
TTovvCvcr, they never tumble when at thofe pro- 
digious heights ; but only near the earth, in afcend- 
ing or defcending. 
Tumbler is alio a fort of dog; called in Latin 
vertagus, from his quality of tun^bling and wind- 
ing his body about before he attacks and faftens 
on his prey, 
VoL.IL 
TUR 
Thefe dogs feem nearly to correfpond with our 
modern lurchers, a kind of mongrel greyhounds. 
TUNALLUS. A n appellation by which 
fome ichthyologifts exprefs the grayling, or um- 
ber. 
TUNG. An Indian term for a fmall infed, 
the Pique of the Spaniards, which is very com- 
mon, as v/ell as very troublcfome, in fome parts 
of the Eafc and Wefl Indies. It is about the fize 
of a fmall flea. It lays it's eggs within the fkin 
of the human body; for the efFefting of which it 
diligently watches it's opportunity; and often fuc- 
ceeds in the attempt, to the great annoyance and 
pain of the perfon on v/hom it feizes. 
Senfible of it's own imbecillity, this little ani- 
mal generally makes it's way either under the 
nails, or where there is fome callus on the furface, 
that it may reft in greater fecurity: there it lays 
it's eggs, which hatching into fo many young 
ones, fpread themfelves between the flefli and the 
flcin, if not timely prevented by removing the pa- 
rent infeft. 
TUNNY; the Scomber Thunnus of Linnseus. 
A large fifh of the fcomber kind; called by au- 
thors thynnus, arcynus, limofa; and by fome of 
the ancient ichthyologifts, pelamys. Artedi cha- 
radlerifes it under the denomination of the fcom- 
ber with eight or nine fins in the hinder part of 
the back, rifing out of a fulcus ; having another 
fulcus at the place of the ventral fins. 
This fifli is common in the Mediterranean, and 
fome other feas ; and is alfo fometimes caught oa 
the Englifh coafts. 
Tunnies appear to have been well known to 
the ancients, and conftituted a confiderable branch 
of commerce : the feafon of their arrival' in the 
Mediterranean from the ocean was obferved ; and 
ftations for taking them were eftablifhed in thofe 
places which they were known moft to frequent. 
At prefent, there are confiderable fiflieries of them 
on the Sicilian coafts, as well as feverai other 
parts of the Mediterranean, where they are cured^ 
and fupply the adjacent countries with a valuable 
article of provifion. 
Thefe fifli are fometimes found in the lochs 05 
the weftern coafts of Scotland, into which they 
have purfued herrings ; and are either fold frefh, 
or faked and preferved in large cafl^s. The 
pieces, when frefli, have the appearance of raw 
beef ; bur, v/hcn boiled, turn pale, and acquire 
fomething of the flavour of falmon. One of them 
has been known to weigh four hundred and fixty 
pounds. 
The Tunny grows fometimes to the length of 
feven or eight feet. It has a rounded and thick 
body, becoming gradually fnaller towards the 
tail, till at length it is extremely Gender. The 
irides are of a pale green colour; the teeth are ex- 
tremely minute; the fl^in on the back is fmooth, 
thick, and black, or (viewed in fome lights) of a 
fhining blue or greenifh hue; the belly and half 
the fides are of a fiivery whitenefs, tinged with 
csrulean and pale purple; near the tail it is 
marbled with grey; the fcales are very minute ; 
and the tail is ftiaped like a crefcent. 
TUNUPOLON. An Eaft Indian fpecies of 
viper, principally a native of the Ifle of Ceylon. 
It is of fmall dimenfions ; and of a fine fattin 
glofs, beautifully variegated with fliades of brown. 
TURBAN. A term denoting the aggregate, 
or whole fet of the v/hirls of a flielJ. The flat, or 
helix Turban, is one fo flightly prominent, as to 
4 T be 
