WORMS. TESTACBA. 58. Tellina. 195 
orange, fometimes marked with undulate rufous fpots; the 
firiz incline obliquely towards the outer margin like the lines 
at the ends of the fingers, which gives it the appearance of 
being fpirally ftriate, 
.* Corzez, Shell globular glabrous horn-colour, with atranfverfe groove. 
Pennant Brit. Zool. iv. tab. 49. fig. 36. 
Lifter. tab. 159. fig. 14. Gua t. tefl. 1. 7. f. B, C. 
Lifier an. Augl. tab. 2. fig. 31. App. tab. V. fig 5. 
Argenv. Conch, tab. 27. fig. 9. Zoom. t. 8. f. 10. 
Schrat. Flufconch. tab, 8. fig. 3—5. 
Chemn. conch. 6. tab. 13. fig. 133. a, b, 
Inhabits ponds and frefh waiter ot Europe : fize of a pea. 
Séell pellucid polifhed, very finely ftriate acrofs ; within blueifhe 
white, without white or pale or b]ueifh-afh, with traníverfe 
black curves one of which is more diftinct: about the fize of 
a pea, often more than twice as large : lateral teeth of the hinge 
elongated, middle-ones hardly any, 
? Lacujiris. Shell rhombic flattifh glabrous, with an acute protuberance, 
Chemn. conch. ©. tab. 13. jig. 135. 
Inhabits pools or marfhes of Europe: 6 lines long and 4 broad; 
viviparous: /Ac]] brownifh, the back of the valves cinereous, 
the margin white, within white; the youger. ones entirely 
white and diaphanous: J/zge without middle tcetb, lateral 
ones 6 obfolete. 
Amsica, Shell fomewhat heart-fhaped, tranfyerfely grooved, with an 
obtufe protuberance. 
Chemn. conch. 6. tab. 13. fig. 134+ 
Inhabits pools and ditches of Europe: 1—5 lines broad. 
Shell lefs globular than T. cornea, within glabrous and blueifh, 
without white brown or yellow witha blackifh rib or two j 
the younger ones entirely white and pellucid : Ainge with 2 
middle teeth in each yalve.and a lateral one each ride. 
Fluminalis, Shell triangular gibbous and tranfverfely ftriate. 
Inhabits the Eujhrates. Mull. Verm. 2. p. 205. 2. 390- 
Shell thick hard opake, broader towards the hinge on the fore; 
part: outwardly green with imbricate ftrice parrallel with the 
aperture, within blue: Azmge with 6 middle teeth, the lateral 
each fide long and with the receiving grooves crenulated, 
Flumina, Shell triangular gibbous tranfverfely ribbed. 
Mull. «erm. terr, et Ruv. 2. p. 206. n. 391. 
Inhabits the river which wafhes Canton in China, 6—8 lines 
long ond ‘broad : opake, without green, within w hitifh marked 
wich a black femicircle: Zi»ge as in the former, 
- Fluviatilir, 
