14 McAtee Mammals, Reptiles and Batrachians of Indiana. 



to live in while completing their development. Under favorable condi 

 tions, they transform in February and March, when they adopt the same 

 mode of life as the adults, occurring most commonly under logs along 

 creeks. 



7. Plethodon cinereus (Green). 

 ASHY SALAMANDER. 



Abundant. The so-called varieties, P. c. cinereus, P. c. erythronotus and 

 P. c. dorsalis, are all found in this region. The first two occur most fre 

 quently, being very common ; the last is rare. The form erythronotus is 

 generally found under rocks and logs, in comparatively dry situations, 

 along the sides of hills, particularly those with southern exposures. The 

 other varieties, however, are most often found near water, at least, at the 

 foot of the hill slopes. The form cinereus has often been taken from under 

 stones on the edge of a creek, and two cinereus and one dorsalis were 

 secured in Mayfield's Cave. 



The above facts indicate that these forms have only partially separated 

 habitats, which would favor the idea that they must be considered merely 

 varieties. Often however, two or more of them are found under the same 

 log, whence it is evident there are no important barriers to their mingling. 

 But, since they associate and since they have been shown to breed true, 

 " adult red-backed specimens watching eggs with red-backed embryos, 

 and brown-backed in charge of brown-backed embryos," according to 

 Cope, what good reason is there against designating them full species? 



8. Plethodon glutinosus (Green). 



SLIMY SALAMANDER. 



Rather common under logs and stones in damp situations. One was 

 taken in Mayfield's Cave. 



9. Spelerpes longicaudus (Green). 



LONG-TAILED TRITON. 



Rather rare. Has been taken in the woods east of Salamander Pond in 

 October (C. H. Kennedy) and larvae were found at the mouth of a cave 

 (Stony Spring) in May. (James Simonton). 



10. Spelerpes maculicaudus (Cope). 



CAVE SALAMANDER. 



Abundant. This pretty species occurs in all caves and cave streams and 

 has been collected at Mayfield's and Truitt's caves, Stony and Leonard's 

 springs, and in Griffy Creek. However, Professor Blatchley found two 

 specimens beneath logs a mile or more from any known cave, and half that 

 distance from streams or springs. I have taken it from under boards and 

 stumps also, and it is seen in cellars, greenhouses and other moist places. 



The breeding season is evidently in winter, but larvae are present the 

 year round as the new brood is hatched before the old has transformed. 

 From twelve to fifteen months appears to be the usual period required to 

 complete the development. 



