244 Prof. F. J. Bell on Echinoderms from 
XIX.—Report on a Collection of Echinoderms from the Neigh- 
bourhood of Zanzibar.—Part I. By F. Jerrrey BELL, 
M.A. 
THE zeal for the study of natural history which distinguishes 
H.M. Agent at Zanzibar, Sir Charles Hliot, K.C.M.G., led 
that diplomatist to obtain the assistance of Mr. Crossland, 
B.A., who made, inter alva, a collection of Hchinoderms. 
As reports on various groups are being or have been made, 
it seems well that there should be one on the Echinoderms ; 
but I am bound to be brief, since in 1899 a very complete 
account of the Echinoderm fauna of this area was given by 
Prof. Ludwig *, who enumerated 127 species as being known 
from the district. 
It will probably be convenient if on this occasion I adopt 
the systematic order of Prof. Ludwig’s memoir. The Cri- 
noidea and Holothurioidea will be dealt with in the second 
half of this report. 
ASTEROIDEA. 
Astropectinide. 
1. Astropecten Hemprichii, M. Tr. 
Zanzibar Channel, 8 fath. 
2. Astropecten polyacanthus, M. Tr. 
Zanzibar, 3-5 fath. 
3. Luidia Savignit, Audouin. 
Wasin, 10 fath. 
Pentagonasteridez. 
4. Goniodiscus yg. 
There are several specimens differing in size and in some 
important points ; we have really no knowledge of the growth- 
changes of species of this genus, and our collections must 
be much larger before we make any new species. 
5. Pentaceros Lincki, de Bl. 
This is the form catalogued by Prof. Ludwig as P. muri- 
catus of Linck, but that zoologist was not a binominalist. 
Zanzibar shore. 
* “Wissenschaftliche Ergebnisse der Reisen in Madagascar u. Ost- 
Afrika . . . von Dr. A. Voeltzkow. i. 4, Echinodermen des Sansibar- 
gebietes,’ Abh. Senckenb, Ges. xxi, 4 (1899), 
