| 
| 
138 WORMS. MOLLUSCA, 52. Echinus, 
Giebulass — Hemifpharical, fubglobular, with 1o avenues, the fpaces 
muricate at the fides and porous in the middle. 
Inhabits the InaianOcean. — Muf. Lud Ulr. 706. 
This is probably the fame as Ech, granulatus. 
Spharoides Hemifpherical, gibbous: avenues ro, every where muri- 
cate and porous in the middle. 
Inhabits the /zd;az Ocean, 
Grasilla. Hetifphzrical, gibbous: avenues ro, triplicate; the {paces 
muricate in a decuilate form. 
Inhabits the Indian Ocean. Muf. Lud. Ulr. 707. 
Lixules Hemifphzrical, with 10 avenues in approximate pairs; 
the {paces tranfverfely muricate and punétured. 
Inhabits the Jxdian Ocean, — Muf. Lud. Ulr. 107. 
Saxatilis. Hemifphzrical; depreffed; pores of the avenues in a curved 
line, the curves oblique at the bafe. 
Rumpf. Amb. 5. 31. tab, 14, fg. A. 
Seba Muf. 3. tab. 1o, fg. 11. Batbut, tab. 11; f. Ze 
Klein eckin. ed. lesk. tab, s, and 30, A, B. 
Delic . nat; fel. 1, tab. D, iii, fig: 6. 
2. Seba Muf. 3, tab. 13, fig, 10. 
Klein echinod. ed. lesk, tab. 39; fig. 4. 
3« Klein echinod. ed. lesh. tab. 5, figs C. 
4. Klein echinod. ed. lesk. tab. 5$, fig. b. 
Inhabits the Mediterranean, 2) Indian Seat. 
Shell fubelliptie, violet-grey or white: protuberances violet, red- 
difh or yeilowifh, in 2 or 3 longitudinal rows: pores of the 
avenues double, 5 pair in arow: mouth large: vent furround- 
ed with ovate acute feutes: /pines rigid, reddifh-brown, with 
violet tips. 
Feneftratus, Orbicular, with a flat feneftrate bafe: fpaces 10, with un- 
equal fmall and large tubercles ; mouth with 10 angles. 
Klein echinod. ed. lesk. tab 4, A, B. tab. 39, fig. 3; 
Walch diluv.2. p. 177. tab. E, i. aj 1. 
Inhabits ———. — SZe/] white, with granulations over all the 
{paces and avenues; in the larger {paces are 6 rows of warts 
refembling papilla : avenues broad, with 3 patr of pores and 
2 towards the crown: /pines violet-black : vent pentangular. 
Subangula- Hemifpherical, orbicular; with ro fpaces, the leffer ones | 
rit elevated, and 10 rows of tubercles in each. 
Inhabits ———, Klein echined, les, tab. 3. C, D. 
Shell 
