4 University of Michigan 



3.05. Fifteen of the largest males vary from 61 mm. to ys 

 mm. in length, exclusive of tail, average 66.46 mm., and 

 seventeen of the largest females vary from 51 mm. to 61 mm. 

 in length, average 55.38 mm. The femoral pores in fifty- 

 seven specimens vary from 23 to 29, average 26. The writer 

 proposes to restrict the name C. lemniscatus Laurenti, type 

 locality Guiana, to this form. Laurenti (Syn. Amph., 1768, 

 p. 60) gives the locality of Seba's specimen upon which he 

 bases his description as "Guinea" which is evidently a lapsus 

 and so pronounced by Daudiu (Hist. Nat. Rept., 1802, iii, p. 

 180).- 



It is believed that the relative size attained by adults in the 

 two regions is fairly revealed by the material examined, as the 

 collections are not haphazard but were made by the writer for 

 the purpose of determining the maximum size and the varia- 

 tions due to age and sex in the two regions. In the opinion of 

 the writer, the Guiahan form is a depauperate race very close- 

 Iv related to the Colombian form with which it will probably 

 be found to intergrade. 



- It may be pointed out that if the name be credited to Daudin, as is usually 

 done, it may still be applied to the British Guiana specimens as the type locality 

 is then "Surinam." 



