WORMS. MOLLUSC A. 52. Echinus. 137 
2. 
Shell depreffcd, with fewer tubercles, and a ferrate line 
down the middle of the fpaccs: pores of the avenues 
placed in alternate rows of 2 and 3 foramina. 
Lesk ap. Klein, tab. 43. fig. 3 — S- ia.b. 49. /. i. 2. 
Baji.op. Jubs. 3. MZ. tab. W.f. 2—8. 
Reaum. 4B. Par. I712. p. 177 * 
Gualt.lefi.t.XO-l.f.k. _ . . „ j.fl- -n, i 
Inhabits the Eu opean Ocean, and is principally diftinguithed 
from Ech. efcukncus, in being lefs, in h ving the top more 
depreChd, and the avenues of pores narrower. 
SW/ “rcemfh-grey, olive-green or reiJifh-violet : larger^tire/ 
with 8 rovvs of finall tubercles, belides foine very minute 
IcattereJ ones : leffer fpaces with 2 rows of larger and as ma- 
ny iinall tubercles : avenues with a triple row ot double pores : 
fpines 3 — 4 lines long, ftriate,’ acute or obtufe, whitilh, violet, 
green or clachilh olive. 
- Hemlfphierical, depreffcd, with 10 avenues of pores, the 
fpaces with a ferrate future down the middle, and tranl- 
verfe lines: mouth pentangular, the angles obtufe. 
Klein, ed lesk. iah. 2, E. tab- ^O, fig. 7 * 
Gusilt. Teft tab. toy, fig. M 
Dslic. Nat fl. p. 88. tab D, /. 6. 
Inhabits , probably a variety of Ecb. elculentus. 
Sbell yellowilh-red with paler avenues, the bafe cchraceous j 
rough with larger and fmiller protuberances. 
us. 
Hemifphcerical ; the fpaces granulate and bifariouQy wait- 
ed, the larger ones biparted by a ferrate future down 
the middles avenues trifarioufly porous. 
Klein. Echin. ed lef. tab. 2, F. tab. \Z,fig. t- 
2. Lefs, and greenhb-grey. 
Klein Echin. ed lesk. p. 94* 3 > 
Seba Muj. 3. tab. 10, fig. 20. 
Argenv. conch, l. p. 31°. ictb. 23, f&‘ U. 
Gualt. Tejl. tab, 1 08, fig. A. 
Delic. Nat.JH. I.; 5 . 88 tab.'D, fig. 4, 5 - 
Itiiiabits Shell grey with a violet tmge. 
Spaces with rows of granulations and protubarances : avetuitt 
with double diftant pores. 
Hemifphxrical ; fpaces granulate, all of them bifarioufly 
tiiberculate : avenues e-vcavated and bifarioufly porous. 
Khin Ech. ed. lesk.p.g^. tab. 44, As. 3, 4, 
Scill. de corp. mar. petrij . tab, 22, jig. 2, D. 
Found at It erona in a petrified Hate : grey -yellow. 
VOL. IV.— S 
Giolulm 
