202 PROCEEDINGS OF THE ACADEMY OF [1894. 



shorter tlian the parietal border, which forms less than a rio;ht ano'le 

 with that of the opposite side. Loreal longer than high; oculars 

 1-1, the anterior well separated from frontal by superciliary. Tem- 

 porals 1-1; superior labials eight, fourth and fifth entering orbit, all 

 longer than high except the eighth. Inferior labials eight, fifth 

 largest, and in contact with postgenial. Postgenials half as long as 

 pregenials. Total length, 287 mm.; of tail, 76 mm. Gastrosteges, 

 154; anal 1-1; urosteges 69. 



Dark brown above, the scales with a paler, minutely speckled 

 center, except those of the third row. This, together with the more 

 restricted pale centers of the scales of the first and second rows, gives 

 the appearance of a dark lateral band, which tips the gastrosteges. 

 Below uniform yellow. A narrow yellow collar borders, and does 

 not cross the extremities of the parietal plates. Each upper labial 

 with a large yellow spot next the border; that at the top of the sixth 

 and front of the seventh has the effect of a postocular band. 



This species differs from the type in the scale formula. In the 

 T. gracile, the scales are in fifteen rows; the oculars are 1-2, and 

 there are but seven superior labials. The coloration is more ob- 

 scure. 



No. 451, San Jose, P. Biolley. 



Drymobius paucicarinatus sp. nov. 



Scales in seventeen rows, the five median only keeled, and that 

 faintly. Oculars 1-2 ; preocular not reaching frontal ; loreal sub- 

 quadrate, longer than high. Temporals 1-2; four and a half 

 scales bordering each parietal. Superior labials nine, fourth, fifth, 

 and sixth in orbit ; eighth and ninth longer than high. Eye large, 

 its diameter equaling length of muzzle from its border to the nostril, 

 and equaling a little over half of the iuterocular width ; equal also 

 length from rostral to frontal plate; equal length of frontal plate, 

 and exceeding a little the length of the common parietal suture. 

 Frontal plate wide in front, contracting rapidly posteriorly, lateral 

 borders very little concave. Ten inferior labials. Postgenials longer 

 than pregenials. The scales are not much narrowed, and those of 

 the sides are rather wide. Total length, 1,230 ram.; tail, 415 mm.; 

 length to canthus oris (axial) 26"5 mm. Gastrosteges 183; anal 

 1-1; urosteges, 127. 



Color above brown, without markings; below yellow; ends and a 



