442 
fufcus. 
fafciatus. 
fimiatilis. 
ala tits. 
ter eh el la . 
fufcatus. 
-torulofus. 
radula , 
a/per. 
granulates 
decollatus. 
molucca - 
nits. 
minimus. 
Jlrigilatus . 
tubercula- 
(us. 
gibbofus. 
atratus. 
contraries, 
ekurnea . 
conditus. 
clavct. 
hexagonus 
nnnntiffi- 
mus. 
55 
Tiochus, 
whirls' furrounded with three rows of granulations, the 
firft a little knotty. Tranqu.ebar. 
157. M. rounded, brown; firft whirl of the fpire 
gibbous ; the others varicofe ; the laft with numerous 
fpines. 
158. M. tranfverfely ftriated; fpire crowned. Rivers 
of America. 
159. M. brown; firft whirls of the fpire crowned 
with fpines, the others with knots; aperture repand. 
160. M. reticulated ; fpire mucronate ; firft whirl 
grooved and tranfverfely ftriated ; lip winged. 
161. M. tranfverfely ftriated, and alternately barred 
with brown and white ; fpire mucronate ; whirls dif- 
tant, with undulated knots. 
162. M. with a triple moniliform belt on each of the 
whirls ; aperture oval, with curved ftriae within ; x to 
inches long. 
163. M. whirls crenulated; the upper ftria denticu- 
lated. Mediterranean. 
164. M. whirls of the fpire with a flightly knotty 
zone above ; beak fhort. 
165. M. whirls of the fpire tuberculated, with a 
double row of pundtured ftria;. Africa. 
1 66. M. whirls of the fpire grooved, tranfverfely 
ftriated and muricated. Guinea. 
167. M. rough, with decuffated tubercles; beak 
acute, afcending ; 2 inches long ; white. India. 
* 168. M. whirls of the fpire with longitudinal plaited 
grooves, with the tip feemingly broken off. European 
feas. Britain. 
169. M. ftriated; whirls of the fpire tranfverfely 
grooved with undulated, longitudinal plaits ; lip dila- 
ted, crenulated. Marfhes of Molucca iflands. 
170. M. with tranfverfe, undulated Arise, croffed by 
longitudinal lines ; aperture orbicular. 
1 71. M- longitudinally ftriated ; whirls undivided, 
with a fnowy belt at the future, marked with reddifh 
fpots. 
172. M. tranfverfely ftriated, and furrounded with 
glabrous knots ; lip thickened. 
173. M. whirls of the fpire margined ; belly gib- 
bous ; lip cleft, denticulated ; beak fhort. 
174. M. black ; whirls tranfverfely ftriated and tu- 
berculated ; pillar with one plait. 
175. M. four contrary whirls marked with double 
ftrise ; beak dilated. European and North feas. 
176. M. contrary, hyaline, with 6 finely crenulated 
whirls. 
177. M. tapering, rough with granulations; lip 
doubled, emarginated on each fide, and toothed with- 
in ; aperture oval and ftriated. 
178. M. tranfverfely ftriated and fpotted ; whirls 
with plaited knots ; lip double, dilated. Pulo Can- 
dor. 
. 179. M. yellowilh, hexagonal, with tranfverfe, gra- 
nulated ftrise ; firft whirl tuberculated. South fea ; 
and is often found foffil. 
* x8o. M. with five whirls, fpirally ftriated, and re- 
mote ribs ; pellucid ; a very minute and elegant fnell. 
Coafts of Wales, 
Gen. 27. Trochus. 
Gen. Char . — The animal a limax ; ftiell univalve, fpi- 
ral, more or lefs conic ; aperture fomewhat angular 
CONCHOLOGW Chap. IV. 
or rounded ; the upper fide tranfverfe and con- 
tracted; pillar placed obliquely. 
Species. 
A. Ere ft, with the pillar perforated. 
1. T. conic, fmooth, fomewhat umbilicated; a nitdlicuSc 
large ponderous lliell, with oblique, red, perpendicular 
ftrise. Indian ocean. 
2. T. conic, tuberculated, with an oblique perfora- maculatuit, 
tion ; inner lip two-lobed. Afia, South America. 
3. T. convex, obtule, margined ; the umbilicus per - perfpeSlU 
vious and crenulated, 2 J inches long. Afia, Africa, vus. 
This is a very beautiful (hell. 
4. T. convex ; pillar 2-toothed; perforation crenu- hyhridus. 
lated. Mediterranean. 
5. T. convex, with callo-punflured ftriae ; pillar x- cruciatus „ 
toothed. Mediterranean. 
6. T. obovate, ftriated ; marked with concatenated, pharaonis, 
globular dots ; aperture and pillar toothed ; umbilicus 
crenated. European and Afiatic feas. 
* 7. T. convex, obliquely umbilicated ; ridges of the magus. 
whirls riling into obtule tubercles. European and 
African coafts, Britain. 
8. T. ftriated, plaited above, and more convex be- modulus^ 
neath ; aperture ovate and x-toothed. Red fea. 
9. T. fubovate ; grooves moniliform and alternately fcaber. 
larger ; ftiell black ; aperture yellowilh. 
10. T. obliquely umbilicated; convex; whirls varies. 
ftightly margined. Mediterranean. 
* xi. T. ovate, obliquely umbilicated; whirls round - cinerartuSo 
ed ; fize of a pea. Shores of Europe. Britain. 
12. T. ovate, fubumbilicated ; perforation nearly divarica- 
ftiut up ; loweft whirl more remote. Mediterranean tus. 
and Greenland feas. 
13. T. conico-convex ; perforation pervious, exadtly umbilica* 
cylindrical ; whirl flightly emarginated. Shores of ris. 
Europe. 
14. T. convex, conic; whirls fpinous and margined \folaris. 
aperture femi-heart-fiiaped ; 2 inches diameter. India 
and America. 
15. T. depreffed, oblique; w'hite with brown lines , tedium, 
fpire tranfverfely ftriated, and longitudinally ribbed ; 
firft whirl ventricofe; aperture orbicular; firft whirl 
large ; pillar brown. 
1 6. T. conic, white fpotted with red ; whirls round, conns. 
with moniliform belts; firft whirl only perforated. India. 
17. T. fubequal, mucronate; whirls 9, fpinous be- fpinofus, 
neath ; on each fide a linear band of white and black, 
with a triple row of knots. 
18. T. lateritious, fpotted with white ; the bafe H?X,jijubinus. 
with concentric lines of concatenated dots ; whirls 
channelled, teffelated at the lower margin with white 
and chefnut. South America. 
19. T. plaited with knots, tranfverfely ftriated, alveart, 
with belts of concatenated dots ; perforation funnel- 
ihaped ; pillar crenulated. India. 
20. T. bafe and continued perforation funnel-lhaped ; concavus. 
whirls contiguous, undulated and plaited; aperture 
denticulated at the margin ; 2 inches broad. India. 
21. T. furrounded with granulations and knots, vermis. 
green, and whitifh towards the tip ; the tip varied with 
black dots. India. 
22. T. covered with white, greenifh, and buff-co- confperfus , 
loured fpots ; tip with red and black ones ; bafe white, 
fpotted 
