40 ONISCUS. Class V. 



10. HiRsu- Moni. In Lin. Ti\ vii. 71- f-6.f. 7- 



TUS. 



Hirsute, 



[O. with an oval body, having six convex hirsute 

 joints, independent of the head and posterior 

 plate ; the latter large, convex, rounded at the 

 end, furnished on each side with a long serrated 

 fin ; legs eight, provided with double claw^s ; 

 color variable bro^vn ; length one eighth of an 

 inch, 



11. Cylin- Mont. In Lin. Tr. vii. 71. t. 0'. f. 8, 



DRACEUS. 



[O. with a smooth, glossy, cylindric, and very 

 convex body ; central caudal fin subovate, Avith 

 ' two small lateral ones on each side; cmteimce 

 four, of unequal size ; feet fourteen, armed with 

 a single claw ; color pale yellow, clouded with 

 cinereous ; length an inch, breadth less than a 

 quarter of an incl I. Ed. 



12. Testu- Monl. In Lin. Tr. ix. 10^. t. 5. f. 5. 



DO. 



Torloise, 



* O. subovate, of eight joints, ridged along the 

 back, the four first large, concealing the anterior 

 legs. Front emarginate ; antenna four, short ; 

 tail obtuse. Color dull red. Length two lines. 



