54 



CANCEKID.E. 



DEC A POD A. 



BRACHYURA. 



CANCERIDJE. 



Xantho rivulosa. 



Specific character. — Canqxice nearly horizontal ; latero-anterior margin witii 

 four triangular teeth ; fingers brown, the moveable one grooved above ; the second 

 to the fifth pairs of legs with all the joints ciliated on the upper edge. 



Cancer ki/drophilus, 

 Xantho Jkirida, veer. 13, 

 „ rivulosus, 



Herbst, I. t. xxi. f. 124. p. 266. 

 Leach, Trans. Linn. Soc. XL p. 320. 

 Edvvards, Hist. Crust. L p. 394. Roux, Crust. 

 Mediterr. t. xxxv. Couch, Cornish Fauna. 



This species exceedingly resembles X.jlorida., and has 

 been doubtless often confounded with it. There are, how- 

 ever, numerous well marked distinctive characters, as the 

 following description will show on a comparison with that 

 of the former. 



The carapace is nearly horizontal, the anterior portion 



