the Neighbourhood of Zanzibar. 245 
6. Pentaceros hiulcus, M. Tr. 
Zanzibar. 
7. Pentaceros yg., ? hiulcus. 
Wasin. 
8. Culeita pentangularis, Gray. 
Zanzibar. 
Asterinidz. 
9. Asterina cepheus, Val. 
Zanzibar, 10-20 fath. 
Linckiide. 
10. Ophidiaster fuscus, Gray. 
This species is not in Prof. Ludwig’s list, and, so far as I 
know, the only author who has discovered specimens of it 
since Gray described it is Prof. Studer, who has given an 
account of his examples in the report on his ‘ Gazelle’ 
Asteroids (see Phys. Abhand. Berl. Akad. 1884, p. 29). I 
am permitted to say that in the statement that there are eight 
rows of plates on the arms the figure 8 was misprinted for 3. 
Zanzibar, 3-5 fath. 
11. Letaster coriaceus, Peters. 
Wasin. 
I am indebted to Dr. Meissner, of the Berlin Museum, for 
kindly comparing the’ specimens in Mr. Crossland’s collection 
with Peters’s types. Peters’s description and that given and 
illustrated by M. de Loriol * were almost sufficient for me ; 
but I thought it better to ensure accuracy by making a call 
on Dr. Meissner’s kindness. 
12. Linckia Ehrenbergi, M. Tr. 
Zanzibar. 
13. Linckia marmorata, Michelin. 
Zanzibar, 10 fath. 
14, Nardoa variolata, Retzius. 
Zanzibar, shore. 
* Mém. Soc. Phys. Genéve, xxix. 4 (1885), p. 87, pl. xiii, 
