ON TEXAN REPTILES. 



105 



and subcaudals number 147 + 74, 142 -f ?, 139 + 74, 

 and 149 -f- 86. In a dorsal series the spots range from 

 73 to 82. 



This genus is Eutsenia of Baird and Girard, 1853. 

 Fitzinger, 1843, applied the name Thamnophis to the 

 species T. saurita of Linne". The habits of the species 

 make the name (from tfajuvo?, copse, thicket, or bush) a 

 most appropriate one. 



THAMNOPHIS PROXIMA Say ; Garra. 



Ventrals ranging from 167 to 175, and subcaudals from 

 107 to 108. In one case there are eleven infralabials 

 instead often. 



STORERIA DEKAYI Holbr. ; B. & G. 



Two anteorbitals on one side of one specimen. Ven- 

 trals ranging from 135 to 138, and subcaudals from 51 to 

 53. The dorsal band varies from distinct to indistinct, 

 and a series of small black dots at each side of the belly 

 is present or absent. Apparently there is an increase in 

 the number of scutes to the southward. 



POTAMOPHIS INORNATUS Garm. 



The types from which this species was described were 

 secured near Dallas. Their principal difference from Pota- 

 mophis striatula appears in the divided iuternasal, lack of 

 an occipital ashy band, and in a stouter form. 



Two specimens of this lot agree in the main with the 

 types but have a single internasal and a larger number of 

 scutes. For the present they are placed here to wait a 

 larger series from which to determine the value of the 

 differences. Each has 17 rows, 5 labials, 1 anteorbital, 

 1 postorbital, 1 internasal, and divided anal and subcau- 

 dals. One has 6 infralabials, 139 ventral, and 38 sub- 

 caudal scutes ; the other has 6 infralabials on one side, 



ESSEX INST. BULLETIN, VOL. XXIV 



14 



