4 
BRITISH RADIATA. 
4. Echinus lividus. 
Echinus lividus, Lamk. H. ii. 50, ed. 2. 367 ; Blainv. Man. Act. 
228 ; Bennett, Linn. Trans, xv. ; Forbes, Brit. Starf. 167. fig. 
E. hthopliagus, Leach, Wern. Mem. ; Tilloch, Phil. Mag. xxxix. 
100 . 
a. Small, in holes in Nullipora. Cork. John Humphreys, 
Esq. 
h. Cork. Presented by A. G. Melville, M.D. 
2. Echinometra. 
Echinometra, Gray, Ann. P^^7. x. 1825, 4; Agassiz, Ann. Nat. 
Hist. i. 306 ; Blainv. Diet. Sc. Nat. lx. 205, 1830. 
Echinometra, s]3. Breyn. Echin. 1732; Van Phelsum. 
Echinus, sp. Linn. ; Lamk. 1816. 
Echinus jS, Flem. Brit. Anim. 479; Duben and Keren, 276. 
1. Echinometra Drobachensis. 
Echinus Drobachensis, Muller, Prod. 235. 
Echinus neglectus, Lamk. H. ii. 49, edit. 2. iii. 366 ; E. M. 1 . 133. 
fig. 3. a, b; Forbes, Brit. Starf. 172. fig. ; Agassiz, iv. ; Duben 
and Keren, Zool. Bidrag. 277- 
E. lividus, var. Blainv. Man. Act. 226. 
E. saxatilis, Nilsson, Z. Scand. 9 ; not Muller nor Linn. 
E. esculentus, Sv. Zoo/, viii. t. 48. fig. a (good), b; Oersd. Regio 
Mar. 70. 
E. subangularis, Flem. Brit. Anim. 479; Klein, t. 2. fig. F. t. 3. 
figs, a, b. 
a. Shetland. Presented by E. Forbes, Esq. 
b. In spirits. Presented by A. G. Melville, M.D. 
Fam. 3. Scutellid^. 
Scutellidse, Gray, Ann. Phil. x. 1825, 5 ; Synop. Brit. Mus. 1840 ; 
1842, 115. 
Clypeastres, Agassiz, Prod. Ann. Nat. Hist. i. 302. 
Echin. paracentrostomes dentes, Blainv. Diet. Sc. NatAx. 195. 
1. Echinarachnius. 
Echinarachnius, Leske; Klein, E chid. •, Fleming, Brit. An. 479; 
Gray, Ann. Phil. x. 1825, 6 ; Agassiz, Prod. Ann. N. H. i. 304, 
Scutella, sp. Lamk. Hist. ii. 11, 1816. 
Echinodiscus, Blainv. Diet. Sc. Nat. lx. 199. 
Lagena, sp. Blainv. Diet. Sci. Nat. lx. 199. 
