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TROPICAL PACIFIC ECHINI. 
PoporHora Agass. 
Podophora Agass. 1840, Cat. Syst. Ectyp., p. 19. 
In 1840 Agassiz was not aware of the existence of Brandt’s Prodromus 
where the genus Colobocentrotus was established. 
Podophora atrata Agass. 
Echinus atratus Lin. 1758, Syst. Nat. ed. X., p. 655. 
Echinometra atrata Blainv., 1834, Actinol., p. 225, Pl. 20, figs. 1, 1a. 
Podophora atrata Agass. 1840, Cat. Syst. Ectyp., p. 19. 
Colobocentrotus atratus A. Ag. (partim), 1872, Rev. Echini, p. 102, Pl. I1I%, fig. 3. 
Colobocentrotus atratus Mobius, 1908, Aesthetik d. Thierwelt, fig. 5, p. 20. 
Lovén in his Echin. of Lin. says that the type of Linnzeus was collected at 
Mauritius, or rather that the original of the figure in the French edition of 
Klein to which Linneus refers in his twelfth edition came from Mauritius. 
Leske’s figure, to which Blainville and others refer as the typical atratus, has 
the longer marginal spines rounded at the tip. Blainville further states that it 
is “d’un blanc violet presque noir,” which agrees with the coloring of the spe- 
cimens from the Hawaiian Islands and Mauritius in the Museum collections. 
Hawaiian Islands, M. C. Z. collections. 
Hilo, Hawaii, Smithsonian (Albatross coll.). 
Mauritius, Seychelles, Zanzibar, M. C. Z. collections. This species has also 
been noted as occurring at Java and the Moluccas. ' 
Mobius has given an excellent figure of Podophora atrata from Mauritius, 
the dark violet species with long spines rounded at the tip. Hchinometra 
(uoyi Blainy. is only the young of P. atrata. Colob. Leskei Br. is probably 
P. atrata. 
Podophora pedifera Agass. 
Echinus pedifer Blainv. 1825, Dict. Sc. Nat. O., Vol. 37, p. 97. Mers Australes. 
Podophora pedifera Agass., 1846, C. Rais. Ann. Se. Nat. VI, p. 370. 
Podophora atrata A, Ag. (partim), 1872, Rev. Ech. p. 102, Pl. III‘, fig. 3, p. 424. 
The excellent description of Blainville, with his statement “couleur géné- 
rale d’un vert bleuatre, les mammelons verts, les épines livides,” leaves no 
doubt of its identity with the greenish-olive specimens collected at Fakarava 
1 See Rey. Echini, 1872, p. 103. 
