6 
BRITISH RADIATA. 
1. Spatangus purpureus. 
Spatangus purpureus, Muller, Prod. ii. 2850, Zool. Dan. t. 6 ; 
Leske, Klein, 235. t. 43. figs. 3, 5, cop. E. M. 1. 157- figs. 1,4; 
Lamk. H. iii. 29, edit. 2. iii. 324 ; Flem. Brit. Anim. 489 ; 
Gray, Ann. Phil. x. 1825 ; Blainv. M. Act. 202. 1. 14. figs. 1, 
2,3; Forbes, Brit. Star -f. 182. figs. 182, 186; Duben and 
Koren, Zool. Bidrag. 285. 47; Agassiz and Desor, Ann. Sc. 
Nat. 1847, 6; Blainv. Diet. Sc. Nat. lx. 184. 
a, b. Adult. Coast of England. 
c. Half-grown. Irish Sea. Presented by E. Forbes, Esq. 
2. Echinocardium. 
Amphidetus, Agassiz, Ann. Nat. Hist. i. 301, 1838 ; Agassiz and 
Desor, Ann. Sc. Nat. 11, 1847- 
Amphidotus, Forbes, Brit. Starf. 190. 
Echinocardium, Van Phelsuml ; Gray, Ann. Phil. x. 1825. 
Spatangus a, Fleming, Brit. An. 480, 1829. 
Spatangus E, Blainv. Diet. Sc. Nat. lx. 185. 
1. Echinocardium cordatus. 
Echinus Spatangus, Merret, 192; Borlase, Cornw. 2/8. t. 28. 
fig. 28; Lister, App. t. 1. fig. 13. 
Echinus cordatus, Penn. Brit. Zool. iv. 69. t. 34. fig. 75. 
Spatangus cordatus, Flem. Brit. An. 480. 
Amphidotus cordatus, Forbes, Brit. Starf. 190. fig. 
Amphidetus cordatus, Agassiz ; Duben and Koren, Zool. Bidrag. 
285; Agassiz and Desor, Ann. Sc. Nat. 1847, 11. 
Spatangus pusillus, Leske-, Klein, 230. t. 24. fig. c, d, e. t. 38. 
fig. 5 (not Muller). 
Echinocardium pusillum, Gray, Ann. Phil. x. 1825. 
Amphidetus pusillus, Agassiz. 
Echinus pusillus, Gmelin, S. N. 3193. 
Sp. lacunosus, Muller, Zool. Dan. i. 19, 20 (not Linn.). 
Sp. flavescens, Abildg. Zool. Dan. t. 91 (not Muller, Prod.) ; 
Oersd. Reg. Mar. 81. 
Sp. arcuarius, Lamk. H. iii. 31, edit. 2. iii. 328; Blainv. M. Act. 
201 ; Desmoul.-, Gold. Pet. Germ. t. 48. fig. 1. 
Amphidetus Goldfussii, Agassiz. 
a, b. Adult and young, with spines. Coast of England. 
Presented by Mrs. Mauger. 
c, d, e. Adult, without spines. Melton sands. G. Mon- 
tague, Esq. 
2. Echinocardium ovatum. 
Spatangus ovatus, Leske ; Klein, 252. t. 49. figs. 12, 13 ; Fleming. 
Brit. An. 480 ; Blainv. Zooph . ; Desmoul. ; Agassiz (not 
Lamk. nor Blainv.). 
