PLATE XXVIII. 
Diam. 
Page 
Ethusci orientalis, n. sp., adult male, 
X 
about 2 
330 
Fig. la. Anterior view of the cervical region, showing the form of the 
front, antennules, antenme, and exterior maxillipedes, 
X 
3 
Fig. 16. Post-abdomen of the male, 
X 
3 
Fig. lc. Exterior view of larger chelipede, 
X 
Ol 
Fig. lc?. Exterior view of smaller chelipede, 
X 
ol. 
Fig. le. Post-abdomen of a male example with subequal chelipedes, . 
X 
3 
Ethusa ( Ethusina ) challengeri, n. sp., adult female, 
X 
2 
331 
Fig. 2a. Inferior view of the cervical region, showing front, antennae, 
and maxillipedes, .... 
X 
Fig. 2b. Exterior view of larger chelipede, 
X 
Fig. 2c. Post-abdomen of the female, .... 
X 
3 
