BARBADOS-ANTIGUA REPORTS 47 
species of d’Orbigny’s genus Holopus, of which he gives a short 
history. He says further that— 
‘‘there are certain points in which the form of the arm in 
Mr. Rawson’s figure is very unlike that of the species from 
Martinique which d’Orbigny has called H. rangi. I would, 
therefore, propose to distinguish the Barbados specimen by the 
name H. rawsoni, and hope very shortly to be able to give a 
more detailed description of this most interesting discovery in 
erinoidal genera.’’ 
In December, 1871, the ‘‘Hassler’’ with Professor Louis 
Agassiz on board visited Barbados, where she dredged in vari- 
ous depths between 80 and 120 fathoms off Sandy Bay on the 
western (leeward) coast. In his memoir on the erinoids and 
eorals of the ‘‘Hassler’’ expedition Count Pourtalés says of 
Barbados that— 
“‘It is a well-known locality for Pentacrinus asterias and 
millert, and the second specimen of Holopus rangit d’Orbigny 
known to science, in the possession: of Governor Rawson of 
Barbados, was brought up on a fisherman’s hook in the same 
vicinity. We had not the luck to find either of these, though 
numerous joints of the stem of Pentacrinus were contained in 
the sand.”’ 
The specimen, of Holopus rangit to which he refers is evident- 
ly the one from which the figure sent to and published by Dr. 
Gray was drawn; and the fact that Governor Rawson loaned 
it to Professor Agassiz for study and description accounts for 
the non-appearance of Dr. Gray’s projected memoir on the 
genus. 
During his last days at the Museum of Comparative Zoology 
Professor Agassiz was occupied in preparing a paper on Sir 
Rawson Rawson’s specimen of Holopus for the zoological results 
of the ‘‘Hassler’’ expedition. After his death the figures which 
had been drawn for him by Mr. E. Konopicky were published 
in 1874, together with a short description of the specimen by 
Count Pourtalés.t| This description is as follows: 
‘‘The specimen was attached by a broad, incrusting ecaleare- 
ous base, but slightly more expanded than the body, which is 
# Illustrated Catalogue, Mus. Comp. Zool., No. VIII (1874), p. 51, pl. 
10. 
