REPORT ON THE ASTEROIDEA. 413 
1. Nardoa tuberculata, Gray. 
Nardoa tuberculata, Gray, 1840, Ann. and Mag. Nat. Hist., vol. vi. p. 287. 
Ophidiaster tuberculatus, Miiller and Troschel, 1842, System der Asteriden, p. 32. 
Scytaster tuberculatus, Liitken, 1865, Videnskab. Medd. naturh. Foren. i Kjobenhayn, 1864, 
p. 163. 
Linckia tuberculata, v. Martens, 1866, Archiv f. Naturgesch., Jahrg. xxxii, Bd. i. p. 61. 
Localities—Samboangan, Philippine group. Depth 10 fathoms. 
Zebu, Philippine Islands, On the reefs. 
Genus Narcissia, Gray. 
Narcissia, Gray, Ann. and Mag. Nat. Hist., 1840, vol. vi. p. 287. 
Scytaster (pars), Dujardin and Hupé, Hist. Nat. Zooph. Echin. (Suites 4 Buffon), 1862, p. 368. 
Although the differences presented by this form from the typical species of Nardoa are 
comparatively slight, their character and constancy appear to me sufficient to warrant the 
recognition of the genus as established by Gray. 
An interesting additional species was obtained by the Challenger off the coast of Brazil. 
Chorology of the Genus Narcissia. 
a, Geographical distribution :— 
ATLANTIC: Two species between the parallels of 40° N. and 20° S. 
Narcissia canariensis, off the Canary Islands and Cape Verde 
Islands. Narcissia trigonaria, off Bahia, Brazil. 
6. Bathymetrical range: Not recorded. 
y. Nature of the Sea-bottom: Not recorded. 
Chorological Synopsis of the Species. 
Ocean. Range in Fathoms. Nature of the Sea-bottom. 
Narcissia canartensis . : Atlantic. 
Narcissia trigonaria . : Atlantic. 
1. Narcissia canariensis, dOrbigny, sp. 
Asterias canariensis, @’Orbigny, 1839, in Webb and Berthelot, Hist. Nat. Iles Canaries, t. ii., 2e partie, 
Zoologie, p. 148; Echin., pl. i. figs. 8-15. 
Narcissia Teneriffe, Gray, 1840, Ann. and Mag. Nat. Hist., vol. vi. p. 287. 
Scytaster canariensis, Dujardin and Hupé, 1862, Hist. Nat. Zooph. Echin. (Suites & Buffon), p. 368. 
Locality.—St Vincent, Cape Verde Islands. Depth and conditions not recorded. 
Remarks,—On the marginal plates of the example which I have referred to this 
