Si CADUCIBRANCHIATA, 



groups, separated from each other, usually narrower in 

 front, and diverging behind: tongue boletoid; head short 

 depressed; body cylindrical, slender; digits free, four in 

 front, five behind; tail long, tapering, and distaliv com- 

 pressed. 



Body with distinct spots or bands, (a) 

 Body spotless, or with minute dots, (h) 

 a. Costal furrows 15-17. (b) 

 a. Costal furrows 14 or less, (c) 



b. Color in the main red S. ruber. (4) 



b. Color cinereous and white with black, 



S. MARGINATUS, (il) 



c. Inner toes rudimentary, (d) 



c. Inner toes not rudimentary, (e) 

 d. Spots yellow, licheniform. 



S. LEPROSUS. (7) 



d. Spots red, in two dorsal pyriform series. 



S. bellii. (8) 



e. Color above yellow, (f) 



e. Color above cinereous, lines black. 



S. BILINEATUS. (i) 



e. Color above brown, (g) 



f. With dark spots ; no vertebral 

 line . . . . S. longicaudus. (2) 



f. With black vertebral line. 



S. GUTTOLINEATUS. (3) 



g. Costal furrows 14, white be- 



low. .S. PORPHYRITICUS. (iO) 

 g. Costal furrows 13, yellowish 

 clouded below. 



S. PENNATULUS. (l2) 



