158 WORMS. MOLLUSCA. 52. Echinus. 
t Ss/slobus Both ends convex, fubglobular, affulate; avenues ro, Sh 
uss . biporous ftriz; vent ovate. 
Morton Nortbamp. p. 255. tabi 10. fig. 8, 9. 
— Lift, lap. cochl. p. 325. fig- 26. 
Luid. bith. Brit. f. 49. 8. 983—994. 
Scheuchz. V uf. diluv. p. 85. n. 800, 814. 
. Breyn Echig. p. 61. tab. §. fig. 5, 4. 
PBufal, Nat. Merkav. p. 2598. tab. 22. fig, k. 
Walch Monum. diluv: 2. p, 182.125. E. w. fig. 3, 4e 
Found in foffile ftate: granulate, with 4 pores on the crown; 
fpaces divided by a longitudinal ferrat: future, and grooved 
with tranfverfe curved lines, the pieces 7-fided : south fome- 
what kidney-fhaped and furrounded with tubercles difpofed in 
a ftellate form, 
Adanthytis Oblong, heart-fiaped and fubconic; the bafe flatter; ave- 
nues and fpaces ro: mouth rounded and furrounded 
with an elevated margin: vent oval and emarginate 
below. 
Klein. echinod. ed. Lesh. p. 243. tab. $5. fig» 1, 2. 
Found ina foflile ftate: the larger {paces with 7-angular pieces, 
leffer ones 6-and s-argled: wert furrounded with an elevated 
band. . 
Bisdaig, With a double crown. 
Klein. echinod. ed: Lesh. p. 244. tab. 47. fig. 6. 
Asdrecee Br. a. d: Schw. pi 16. tab, 2. fig. C. 
Found hitherto in a petrifid ftate only. 
Es, Middle of the back carinate, — 
Klein. ecbin, ed. Lefk. p. 245. tab. 51: fig. 2, 3» 
Bayer Ory£. Nor. tab. 3° fig. 43. 
Valent. Muf. z. tab. 3. fig. 7. m 1. 
Found in a foffile ftate; refembles the laft, but is narrower behind: 
mouth kidney fhaped: vert obfoletc. — 
c. Ovate; the avenues grooved. 
Ovate, gibbous, with 4 depreffed avenues. 
Brit. Zool. iv. tab. 34. fig. 75. Barbut. t. 11. f. 7. 
Ginann. adv. 2 p. 41, tab. 29. fig. 174. 
i. Spotted, Klein echinod. ed. Lesk. tab. 24. A, By tab, 26; A. 
Scil. corp, mar. tab. 4. figs 2, 3... 
Rumpf. Amb. p. 36. tab. 14. n. 1. 
Cult. teft. tab. 109. fig. A. 
2. Larger. Phelf. Zec-egel- p. 39. n. Se 
Knotty. Seda My. 3. tal, 16. figs 19; 
£ Spaia US» 
