MASTICOPHIS. 101 



"I 197+2.96. 17. 41*. 10. Col. J. D. Graham. 



Betiv. Indianola & 



San Antonio 



Indianola. 194+2.110.17. 40. 10^. 



« 197+2. 110. 17. 34f . 9. 



A specimen from Fort Webster or Copper Mines shows the stripes 

 on the sides much more distinctly, running through all the dorsal 

 rows anteriorly, and crossed by the indistinct bars already referred 

 to. The contrast between the dark chestnut-brown spots on each 

 side, and its deeper centre, with the clear yellow of the edges, is very 

 distinct. Beneath yellow, with the blotches reduced to mere dull 

 spots. 



Santa Rita del Cohre 211+2.101.17. 39i 10|. Col. J. D. Graham. 



3. Mast icoplsis moriUOll, B. & G. — Head ratBer short. Vertical 

 plate with anterior and posterior ends nearly equal, concave between. Pale 

 yellowish red, tinged with gray anteriorly. A series of transverse blotches 

 across the back. 



Stn. Coluber mormon, B. & G. Reptiles in Siansbury's Expl. of "Valley of 

 Great Salt Lake, 1852, 351. 



The only specimen of this species in our possession is immature. 

 Although belonging to a different genus, it is somewhat similar to the 

 young of B. constrictor, though lighter. The occipitals and commis- 

 sure of the mouth are, however, much shorter, the vertical and oc- 

 cipital nearly equal in length. Vertical, with the sides concave ; 

 dimensions anteriorly and posteriorly nearly equal. Scales not quite 

 so broad as in Bascanion Foxii, though broader than in B. con- 

 strictor, especially on the anterior row. Above pale yellowish red, 

 more grayish anteriorly. A series of transverse blotches from head 

 to tail, as in Bascanion constrictor, though rather less distinct. Be- 

 neath yellowish, unspotted except on the outer edges. Stouter iu 

 its dimensions than the young of Bascanion constrictor. 



Owing to the immaturity of the specimen, we have felt in doubt 

 whether it should be referred to Bascanion or to Masticophis. The 

 fact of the 5th labial being in contact with the lower postorbital hass 

 rather decided us in favor of the latter. 

 Great SaltLake, Utah. 178+1. 100. 17. 13i 3 J. Capt.H.Stansbury. 



