BRITISH RADIATA. 
7 
Amphidetus ovatus, Agassiz; Duben and Koren, Zool. Bidrag. 
283. t. 10. fig. 50 ; Agassiz and Desor, Ann. Sc. Nat. 1847, 12. 
Spatangus flavescens, Muller, Prod. 235, Zool. Dan. i. 19, 20, 
(not Abildg. Zool. Dan.); Sars, Besk. 40, 46. 
Amphidotus roseus, Forbes, Brit. Starf. 194. fig. 194, 196. 
Amphidetus ovatus, var. minor, Agassiz and Desor, Ann. Sc. Nat. 
1847, 12; Seba, iii. t. 15. figs. 27, 29; cop. E. M. t. 159. 
figs. 5, 6. 
a, b. Dry. Coast of Northumberland. Presented by A. G. 
Melville, M.D. 
3. Brissiopsis. 
Brissiopsis, Agassiz ; Agassiz and Desor, Ann. Sc. Nat. 1847, 14. 
Brissus, sp. E. Forbes, Brit. Starf. 187- 
Tripylus, sp. Philippi, Ericks. Arch. 1846. 
1. Brissiopsis lyrifera. 
Brissus lyrifer, Forbes, Brit. Starf. 187. fig- 187 ; Duben and 
Koren, Zool. Bidrag. 280. t. 10. fig. 46. 
Brissiopsis lyrifera, Agassiz and Desor, Ann. Sc. Nat. 1847, 15. 
a. Adult, llothsay Bay, Isle of Man. Presented by Ed- 
ward Forbes, Esq. 
b. Inspirits. Shetland. Presented by A. G. Melville, M.D. 
Order II. IIOLOTIIURIDA. 
Fistulides,L«m&. Syst . 345,351; Agassiz, Prod. Ann. Nat. Hist. i. 
297. 
Fistulida, Macleay, Horce Ent. ii. 116; Gray, Ann. Phil. 182. 
Fistulida;, Fleming, Brit. Anim. 483, 1828. 
Cirrhi-Vermigrada, Forbes, Brit. Starf. 15, 1841. 
Ascidiastella, Austen, Ann. and Mag. N. H. x. 108, 1842. 
Fam. 1. Holothuridas. 
Ilolothuridre, Gray, Syn. Brit. Mus. 1842, 118. 
1. Thyone. 
Thvone, Oken, Lehrb. Nat. 1815; Agassiz, Prod. Ann. Nat. 
Hist. i. 298. 
Mulleria, sp. Fleming, Brit. Anim. 1828 (not Jaeger nor Agassiz). 
Phyllophorus, Grube. 
1. Thyone fusus. 
Ilolothuria fusus, Muller, Zool. Dan. t. 10. figs. 5, 6 (not 
Chiaje). 
Synapta? fusus, Jaeger. 
