WORMS. MOLLUSCA. 52 . Echinus, i49 
^^ifaceus. 
c. The hafe irregular, with 5 expanded petal-Jhaped marh 
on the jurface. 
t The margin with angular JlnuoJitieSi 
Flattifli and roundifli-oval : avenues 5, oval, with a dotted 
^ furface, e r. , , 
Barht, tab. \ 9* >?> loanjamatc. tab. 242,/. 0— 1 1. 
Klein echnod. ed. lak. f. 185, lab. 17, A. 
Rump/. Amb. tab. 14, C. Peii<v. Amb. tab. 14./. i®. 
&tba Kluj. 3 ' tab. \ y , f. Z, ^ 
Dslk. nat.Jel. i , 9 1 . tab. D. \.f. 1 2. 
2. Klein cehivod ed lesk. tab, 19, A, B. 
SebaMu./. 3 tab. 15, y%. li, 12. 
Gualt, teft. l. tab. 1 JC, A. 
5. Klein cchi-:od ed. lesk. tab. 18, B, 
, Bocean. ohf. p, ‘^m.tab.fg. 1. 
4. Seba 'dnf. 3. tab. * 4 , ^ 3 ’ * 4 r 
5. Klein echimd, ed le.k. tab. 40 . tab, 4 '>/" ^ -n 
Inhabit3 the Aftaiic Ocean, the laft variety fojfde j ye ewifli- 
brown, fometimes dirty cir.ereou'; covered yvith firall tubei- 
cles like grains oi‘ (and, and ditpofed in a quincunx form. 
Crown elevated, orbicular ; avenues broad, with convergent, 
granulate tips. 
Klein eehmod id. lesk. p. 180. tab. 53 ,_/’. 4 " e r- 
Sail. corp. mar. tab. 9, fig- I, 2- t’ 3 ®> 
IValih diluni. monum. Jupph tab. 9, d. «. i- _ 
Found in a foflile ftate: higher than the laft : about 2 inches 
high and 6 broad at the vvideft part of the baie. 
ft Ovate, with an entire margin. 
^"'^’Mtr.is. Convex and flat beneath: avenues io,_biporous and ex- 
panded in a flcllate form: crown with 4 pores. 
Klein echinod. ed. lesk. p. 19 1, tab. 20. c,d. 
■ 1. Klein echin ed. lesk. tab. 1 8, C, D. 
2. Klein, echin. ed. lesk, tab. zo, a,b. 
Jtldrov. Miif. met. p. 498, Jig. 1, 2. 
Rumpf Amb. tab. 59. f.g. D. 
Breyn. echin. p.^T tnb.Z, h-M- _ 
Walch diluai. vnmum. 2. 81 . tafi. E. iii, «. 5. 
‘X.SebaMvf.Z- tab. \o,fig. 
Inhabits : above brownilli-grey, beneath whitiin-grcy j. 
granulate, with a circle round the granulations: mouth tranf- 
verfe and llightly kidney-Ihaped : mnt marginal, near the, 
mouth : ba/e with a paler glabrous line in the middle, reaching 
from one end of the fliell to the other, 
Qrbjs 
