O N I 
O N I 
4S9 
roof is of later date, and tiled. The total length of the 
wooden portion of the church is twenty-nine feet nine 
inches; the width fourteen feet; and the height, to the 
fpring of the roof, five feet fix inches. According to 
tradition, this edifice was erebled as a temporary fhrine 
for the corpfe of one of our ancient kings ; and Smart 
Lethieullier, efq. ftates that the body of St. Edmund, 
when on the way to its place of fepulture at St. Edmund s 
Bury, was “ entertained at Aungre (Ongar), where a 
wooden chapel eredted to his memory remains to this 
day.” 
At Fyfieid, a mile north-eaft from Ongar, a variety of 
celts were difcovered in 1749 ; and near Naveftock, a feat 
of the earl of Waldegrave, is an ancient monument, fup- 
pofed by Stukeley to be a Druid temple of the kind which 
lie called Alate. 
Otes, four miles to the north of this town, was the feat 
of the lords Mafham ; and diftinguifhed as the retreat of 
the celebrated John Locke, who died here in 1704, and 
lies buried under a plain altar in the village church-yard, 
having an infcription upon it from his own pen. Camden's 
Britannia. Ambulator. Britijh Director'./. Beauties of 
England. 
ONGERCUR'RY, a town of Hindooftan, in the pro¬ 
vince of Cattack : twenty-two miles eaft of Guntoor. 
ONGLE', ad). [French.] Clawed; an heraldic term. 
ONGO'A, a town of Africa, in the country of Mo- 
caranga : eighty miles north-weft of Malfapa. 
ONGOBOLE'E, one of the linall Friendly iflands : fix 
miles eaft of Neneeva. 
ONGO'LE, a circar of Hindooftan, in the Carnatic, 
eaft of Cuddapa, and fouth of Guntoor. 
ONGO'LE, a town of Hindooftan, and capital of a 
circar to which it gives name, in the northern part of 
the Carnatic : fixty-live miles north of Nellore, and ninety 
north-north-eaft of Cuddapa. Lat. 15. 30. N. Ion. 38. 58. E. 
ONGOMAN'CAN, a town of Chinefe Tartary. Lat. 
43. 32. N. Ion. 121. 22. E. 
ONGS, a town of the ftate of New Jerfey: thirteen 
miles eaft-fouth-eaft of Burlington. 
O'NI, a town of Imiretta : fixty-five miles north-eaft 
of Cotatis. 
ONI'AS, a man’s name. See Qn. 
ONI'DA, a fmall ifiand in the Gulf of Venice. Lat. 44. 
42. N. Ion. 14. 47. E. 
ONIMAMOU', a harbour on the fouth-eaft coaft of 
the ifiand of Ulietea: north-eaft of Ohetuna, a harbour 
on the fame coaft. 
ON'ION,./! \_oigmm, Fr. from unio, Lat.] A well-known 
herb. See Allium. 
This is ev’ry cook’s opinion, 
No favoury difii without an onion ; 
But, left your killing fhould be fpoil’d. 
Your onions muft be throughly boil’d. Swift. 
ON'ION (Sea). See'SciLLA. 
O-N'JON, a town of France, in the department of the 
Aube : ten miles north-eaft of Troyes. 
ON'ION-EYED, adj. Apt to filed tears.—I an afs,owion- 
eye.d. ShakeJ'peare. 
ONION RIV'ER, a river of Vermont, which runs into 
Lake Champlain in lat. 44. 31. N. Ion. 73. 17. W. 
O-NJONG' MASSANG', a town of the weft coaft of 
Sumatra, on the Line. Lon. 99. 21. E. 
O'NIS, a town of Spain, in Afturias, fituated eaft of 
Cangas de Onis, at the foot of a mountain, and upon the 
little river Curado. 
O'NIS (Cangas de), a town of Spain, in Afturias, 
fituated at the confluence of two rivers, one of which, the 
Sella, is crofled by a beautiful bridge of one arch. This 
town has the freedom of a municipal adminiftration. 
This and the laft-raentioned town lie in the road from 
Oviedo to Santa Cruz. 
ONIS'CUS, f. in entomology, a genus of infers of the 
order aptera, or- without wings. Generic characters— 
Vol. XVII. No. 1192, 
Jaw truncate, denticulate; lip bifid; antennas fetac.eous, 
and from two to four in number ; the body is oval, con¬ 
fiding of about fourteen tranfverfe fegments ; and it has 
fourteen legs. The fpecies all feed on animal and ve¬ 
getable matter, and call their flein. The lea onifei are 
larger than thofeof the frelh- water, having ten inltead of 
leven fegments, though the number of legs is always the 
lame, by which this genus is diftinguilhed from the Sco- 
lopendrus, or centipede. Their motions in the water are 
rapid; for, befides the feet, they are aflifted by lateral 
threads, which pulh them forward like the oars of a boat. 
Among them, copulation endures for feveraldays ; when 
the male feizes his female with his two fore-feet, and drags 
her along with him wherever he direCls his c.ourfe; and 
nothing can induce him to leave his female till this ope- 
rofe funftion is difeharged. A few days after impregna¬ 
tion, the female difeovers a diftended belly ; on the fe- 
venth, the young iflue alive from her womb, and l'wini 
around with alertnefs and animation. 
When the period of their amours is come to an end, the 
male ftill remains fixed on the female; for he is then bu¬ 
lled in doing her another good office, by employing all 
his ftrength to help her in throwing off her Hough ; a talk 
in which he at length lucceeds. An aperture is leen on 
the top of the head, from whence iffues the female en¬ 
tirely white. The (lough floats on the top of the water, 
and might be taken for a dead infeCt. The male then 
quits the female; ftrong enough of himfelf, he contrives 
to call his Hough without afliltance. 
“ From theftriClell refearches which I have made,” fays 
Barbut, “ the onifei which inhabit woods are oviparous. 
I have in my pofleffion fome of their eggs ; they are round,, 
about the fize of the feeds of tare, cruftaceous like thofe 
of birds, and of a fnow-white colour. I have met with 
great numbers of thefe eggs in the hollow of decayed 
willow-trees, and am of opinion, that the land-onilci are 
oviparous, and the aquatic ones viviparous the latter 
are of a pale-red colour for fome time after being excluded 
from the fltell. . 
Gindin’s edition of the Syft. Nat. of Linnaeus has thirty- 
eight fpecies under this genus: his tranflator, Turton, has 
forty-three. We have added one from the Tranf. of the 
American Philofophical Society, vol. v. four from the 
ixth vol. of the Linn. Tranf. and one from the xith. We 
have now therefore forty-nine fpecies. Thofe in the firft 
divilion correfpond with the Cymothoa of Fabricius. 
I. Feelers lione ; antennee commonly four, feffile. 
1. Onifcus paradoxus: fegments of the body falcate 
and fpinous. It is found in Terra del Fuego; and is a 
large infeft. 
2. Onifcus imbricatus : antennae compreffed; legs fur- 
niflied with claws; hind-thighs carinate. It inhabits 
New Zealand ; it is large, oblong, and pale. 
3. Onifcus falcatus : fegments of the body falcate, and 
two-fpined at the lides. It inhabits the Chinefe Ocean. 
4. Onifcus afilus : abdomen covered with two fcales ; 
the tail is femi-oval. It inhabits the European Ocean. 
5. Onifcus Guadaloupenlis : covered with fix fcales 5 
tail ovate, entire. Inhabits the American Ocean. 
6. Onifcus oeftrum : abdomen covered with fix fcales; 
the tail retufe. It is found in the leas of Europe; and is 
reprefented on the preceding Plate, at fig. 4. Mr. Mon¬ 
tague confiders it as a mere variety of the following. 
7. Onifcus entomon, the (harp-tailed onifcus : antennas 
none; abdomen naked beneath ; tad oblong, acute. I11 
this fpecies, the three firft pair of legs are very linall, the 
four lower pair large and long. It is the largeft of the ma¬ 
rine infebls of this genus, meafuring two inches in length. 
It is a native of the European leas, and is found about 
rocks, &c. It is of a ltrong labric, the divifions of the 
upper part being of an almolt calcareous nature. This 
animal is capable of living feveral days in frelh water. 
It is reprelented, in its natural polition, at fig. 5 of the 
fame Plate; and lying on its back at fig. 6. 
6 I 
8 , Onifcus. 
