PLATE 33. 



DASYBATIDAE. 



Fig. 1-2. Dasybatus marinus (Page 382). Fig. 3-4. Pteroplatea micrura (Page 414). 



1. Dorsal view of a specimen 106 inches long. M. C. Z. 990. 



2. Mouth and nostrils. 



3. Dorsal view of a specimen 11^ inches long. M. C. Z. 95. 



4. Head from below. 



