SNAKES. 37 



darker coloration of the sides well defined towards the back ; 

 upper labials yellowish above, black-edged ; beneath yellowish ; 

 from the chin to the tip of the tail two punctated lines, each 

 ventral plate being provided with two black spots towards the 

 middle ; there is another indistinct punctated line on each edge 

 of abdomen. Length of cleft of mouth h" ; length of tail 5^"; 

 total length 17". 



/. CoRONELLA JAEGERI. 



Scales in seventeen or nineteen rows ; anal bifid ; posterior 

 oculars two ; above uniform dark olive, beneath paler. Posterior 

 maxillary tooth longest, smooth, in a continuous row with the 

 anterior ones. 



a. Adult. Brazil. From Dr. Gardiner's Collection. 



b. Half-grown. Brazil. From M. Clausen's Collection. 



Description. — Body and tail moderate ; head small, not di- 

 stinct from neck ; shields of head regular and proportionate ; 

 vertical with nearly parallel lateral edges ; eight upper labials, 

 fourth and fifth forming the lower edge of orbit; first pair oi 

 lower labials forming a suture behind the terminal one ; three 

 temporal shields, anterior one largest and in contact with both 

 posterior oculars. Scales rhomboid, in seventeen or nineteen 

 rows. Anal bifid. Posterior maxillary teeth longest, not grooved, 

 in a continuous row with the anterior ones. Above uniform 

 dark olive, beneath paler. The anterior ocular in the younger 

 individual reaches the vertical shield, in the older one it is 

 raised on the crown, but does not reach that shield. Length of 

 cleft of mouth |"; length of tail 4.^"; total length 23". 



Tlie species is named in honour of Dr. G. v. Jaeger, of 

 Stuttgart, the renowned author on fossils. 



S. COHON ELLA ANOMALA. 



Scales in nineteen rows ; anal bifid. Brown, with two yellow 

 longitudinal lines ; a series of black spots between ; on each side a 

 series of black spots. Posterior maxillary tooth longest, smooth. 

 [Lorcal united with posterior frontal ; an azygos shield between 

 the posterior frontals.] 



a. Adult : tail injured. Bauks of the Parana. From the Haslar 

 Collection. 



Description. — Habit like that of Cor on. austriaca ; head mo- 

 derate, with flat crown and rather broad, rounded muzzle. Ros- 

 tral shield rather large, broader than high, just reaching the 

 surface of head ; anterior frontals pointed in front, moderate ; 

 three posterior frontals. one quadrangular medial one, and two 



