No. 471] PENNSYLVANIA REPTILES AND BATRACIIIANS 165 



all over the region under consideration and presents several more 

 or less distinct types of coloration. So far as the material avail- 

 able for examination is concerned it would seem tiiat the dark 

 form with the stripes nearly obliterated, T. .v. onllnaliis. is re- 

 stricted to the higher AUeghanies as the only « iin. ii^ me troin 

 Sullivan and WyomingCos. (Stone) and Port AlK uhany. M< Kcan 

 Co. (Fowler). All the specimens that I have seen from south 

 of the mountains are true sirtalis with well defined stripes and 

 usually conspicuous spots. Those obtained by Rhoads at Round 

 Island, Clinton Co., Pike Co., Pa., and Sussex Co., X. J., are 

 somewhat intermediate. That these two forms are not absolutely 

 coincident with the Canadian and Carolinian-AUeghanian belts 

 as indicated, is shown by the fact that a fairly typical sirfolis was 

 obtained on the high AUeghanies of Sullivan Co., Pa A nearly 

 uniform green specimen, "T. s. gramineus " Cope, was also ob- 

 tained at the latter localitv. This I take to be a mere color form 

 of ordinotns. 



Thamnophis butleri Cope.— While for sotn(> years Thavinnphrs 

 hracln^sfomusrupv has l)een reganled as a nieiv al.nonnal example 

 t.r T. sirfali.s: tlie recent <lis('overy of a number of specimens in 

 Michigan- seems to establish its .li>tinetnes>. The type i> from 

 Franklin, Xenano-o Co.. I'a. uMiss A.M. Brown an-'l I an> now 

 able to r(>conl an ad.litional Penn^vlvanian specimen obtained 

 at Port Alleghany, McK'ean Co.. Ang'. I'.l, V.m. l.y 11. W. Fowler. 

 This individual has the plates as follows: ni>j)er labials, G-6; 

 lower labials, 6-7; postoculars, 2-2; gastrosteges, 136; uro- 

 steges, 47; length, 377 mm. It presents the principal additional 

 characteristics of the species in a marked degree. /. c. the raj)id 

 tapering toward both head and tail, and the \ery slight constric- 

 tion at the neck. The lateral stripe is nniinly on the third row of 

 scales involvuig part of the second and at some points part of the 

 fourth row. 



After the ai)ove was written Alex. ( i. Ruth ven examine.! the 



T. hidleri a conclusion which he had already reached in connection 

 with Dr. Clark's specimens.' 



'H. L. Clark. Proc. Biol. Soc. Wash., vol. 16, pp. 83-S8, 1903. 

 ^Biol. Bull, vol. 7, no. 5, Nov., 1904. 



