200 IIYDRACHNA, HYSTRIX. 



8 5. HYDUACHNA. Spec. 49. 

 globator, (water spider,) body globular, with red 

 eyes. 



See MS. P. 



8 5. HYDROPHILUS. Spec. 31. 



piceus, (water-clock^) glossy-black; sternum chan- 

 nelled with a long spine pointing backwards. 



scaraboideS) (beetle Avater-bug,)black; shell striatet 

 legs piceus. 

 tiec MS. P. 



3 3. HYDUUS. Spec. 1. 



hydrvphiS) (water- serpent,) head small, furnished 

 with large plates. 



Sec Mb. P. 



1 6. HIPPOPOTAMUS. Spec 1, 

 amphibius, (river-horse,) feet four-lobed ; skin 

 thick, dark, almost naked ; teeth very white ; 

 tail short, naked. 



See MS. P. 



1 6. HYRAX. Spec. 2. 



capensis, nails of the fore feet flat, of the hind feet 

 subulate, single. 



See MS. P. 



1 4. HYSTRIX. Spec. 5. 

 dorsata, (american porcupine,) rusty-brown ; tail 

 middling length, not prehensile ; hind feet five- 

 toed j spines on the upper part of the head; 

 back and tail only. Var. white, 

 See MS. P. 



