CROCODILIANS, LIZARDS, AND SNAKES. 515 



preocular is followed by three small subociilars. There are eleven or 

 twelve supralabials; the first uine quadrilateral; the sixth, which is 

 the highest, in contact with the preocular; and the three last larger 

 and pentagonal. Auricular opening triangular, overhung by the tem- 

 poral region and bordered in front and above by granular scales. 

 Inferior labials in nine pairs; mental divided and followed on the 

 right and left by four submaxillary jilates arranged as in G. deppii 

 and separated from the inferior labials by a row of longitudinal scales. 

 The throat is covered with scales similar to those on the breast; those 

 on the sides are smaller, and the region between the ear and the arm 

 is covered with granular scales. Lateral fold slightly indicated, com- 

 mencing on each side in front of the arm and ending at the cloaca. 

 Dorsal scales subquadrilateral, with a slight longitudinal swelling, and 

 forming fifteen longitudinal series, and from twenty-eight to twenty- 

 nine transverse ones from the nape of the neck to the posterior border 

 of the thighs; the cervical series are composed of six scales. Abdomi- 

 nal plates small, constituting twelve longitudinal rows; the anal 

 region is bordered with six scales, of which the lateral ones are very 

 small. Tail a little longer than the body and head and with eighty- 

 five rings of smooth scales. Limbs relatively h)nger than those of G. 

 deppii, but covered with similar scales. Claws short and hooked. 



Mea,sureinent,s. — Total length of type specimen, figured by Wiegmann, 

 L'lG mm.; length of head, from end of muzzle to middle of car, 20 mm.; 

 width of head at the borders of the temples, 10 mm.; length of body, 

 from chin to anus, 88 mm.; length of tail, 128 mm,; length of arm, to 

 the end of the middle finger, 24 mm.; length of leg, to the end of the 

 longest toe, 28 mm. 



iSTeck and trunk a bright green with seven transverse brown bands, 

 which are a little wider on the vertebral region than on the sides. 

 The tail has fifteen bands of the same color. The upper surface of 

 the head shows the color deepened to a greenish gray, and the tem- 

 ples are crossed obliquely by a black band. The inferior regions are 

 yellow. 



M. Bocourt, from whom the preceding description is mainly taken, 

 remarks concerning this species '-that in general appearance it resem- 

 bles greatly G. deppii, from which, however, it is distinguished by the 

 following characters: (1) Dorsal scales are not so large, somewhat 

 swollen, constituting fourteen and not eleven longitudinal, less con- 

 verging series; (2) two loreals, the upper slightly recurved on the 

 muzzle; (8) different coloration, especially less brilliant." 



A single specimen from Orizaba in the national collection agrees in 

 every respect with the description of Bocourt except in the number of 

 dorsal scales. Of these there are twenty-five transverse series and 

 seventeen longitudinal. i\s the inferior row is composed of two scales 

 to each single scale of a cross-row, perhaps they should not be counted; 

 which leaves fifteen longitudinal rows. Tiiere is no superior loreal as in 



