21 2, PROCEEDINGS OF THE NATIONAL MUSEUM. 
VOL. XXXIV. 
the ten genera forming the others are exclusively confined), may 
be considered as peculiarly characteristic of it, are entirely absent; 
while the four familes occuring in the Hawaiian Islands are all 
of very wide distribution, in the Atlantic as well as the Pacific; more- 
over, the former are mainly littoral or inhabitants of shallow water. 
while of the latter three are confined to deep water and the other 
is cosmopolitan. The Hawaiian crinoids, so far as known, all be- 
long to very wide-ranging types inhabiting fairly deep water. Com- 
parison with other localities is interesting; in the following table 
are given the genera occurring in the West Indies, Japan, off the 
Crozet Islands, among the western Aleutian Islands, and in the 
Galapagos Islands, compared with those of the Hawaiian Islands: 
Galapa- 
gos 
Islands. 
West 
Indies. 
Crozet 
Islands. 
Hawaiian 
Islands. 
Aleutian 
| Japan. Islands. 
Name. 
| 
| 
| 
| 
— |- 
| 
| 
Ateleerinide: 
ALCLECTINU Se ee eee ats eae Gee ee PSE | [aes area gral [eee Se eae oe || ed a oi 
EKudiocrinide: | | 
Eudiocrinus 
IDQCCHOGIROCPUDUS ooc0oss0a5cosccoboscee y 
Antedonide: 
Adelometra 
Coccometra 
x< 
Erythrometra 
HAeliometra 
Hypalometra 
Tridometra 
Nanometra 
Perometra 
Psathyrometra 
Thysanometra 
TROUTALOMEtL Oe eee ee Ore eee er ooeeer teeeeore | 
Trichometra 
Zenometra 
Thalassometride: 
Charitometra 
Pocilometra 
Thalassometra 
Stylometra 
Tropiometride: 
Troptometra 
Asterometra 
Calometra 
Himerometride: 
Oligometra 
Cyllometra 
Himerometra 
Zyvgometride: 
Zygometra 
Comasteride: 
Comaster 
Comatula 
x X 
MK MR KKK KKX 
sme em et eee 
It will be observed, then, that of the 8 genera represented in the 
Hawauan Islands, 2 occur in the Aleutian and Galapagos Islands; 2 
oceur in the Crozet Islands; 5 occur in Japan; 4 occur in the West 
Indies, only one of which occurs in Japan, two of them being known 
from only the West Indies and the Hawaiian Islands. 
The Hawaiian fauna, as at present known, comprises two West 
Indian genera (Zenometra, Trichometra), one Kast Indian-Japan- 
ese genus (/7idometra), one South Seas-Indo-Pacific genus (Decame- 
