CADUCIBRANCHIATA. IO9 



occur in the female cloaca, and to some distance up in 

 the oviducts. These were found in pregnant females not 

 engaged in oviposition as well as those that were, thus 

 showing that the eggs were fecundated some time prior 

 to leaving the mother. 



Perhaps the best analysis that can be given is the fol- 

 lowing modeled after Dumeril and Bibron: 



Skin of the back rugose, (a) 

 Skin of the back smooth, (d) 



a. Belly spotted black, (b) 

 a. Belly immaculate, (c) 



b. Palatine teeth in two nearly parallel rows. 



T. cristatus. (1) 



b. Palatine teeth contiguous in front, widely 



divergent behind T. Blasii, (8) 



c. Dorsal band wanting . . T. marmoratus. (2) 

 c. Dorsal band large, yellow. 



T. Pyren^us. (7) 

 d. Belly spotted black, (e) 

 d. Belly immaculate, (f) 



e. Spots large, round ; no yellow lateral band. 



T. PUNCTATUS. (3) 



e. Spots simply dots ; large yellow lateral band. 



T. VITTATUS. (5) 



f. Fronto-temporal arch incomplete ; lateral 



line of pores none ; color cinereous. 



T. ALPESTRIS. (4) 



f. Fronto-temporal arch complete ; lateral line 

 with distant, single pores ; color tawny. 



T. PALMATUS. (6) 



