122 



ON THE BATRACHIA AND REPTILIA OF COSTA RICA. 



Above and below brilliant metallic green, with a few black dots along the 

 vertebral line. Head and anterior part of sides, brown ; a black V extending from 

 the auricular openings, which are connected by a broad black band with the orbits. 

 Another V extends towards the occiput from the limbs of the nuchal V, enclosing 

 a narrow brown area with it. Top of muzzle and limbs blackish. 



M. 



0.108 



xuiai ii- I'm u ..... 



Length to orbit .... 





, . 



.005 



" to ear ..... 





. 



.011 



" to axilla .... 





. 



.018 



" to groin .... 





. 



.0378 



Width of head behind 





. , 



.006 



Length of hind foot .... 





. . 



.014 



San Jose. Dr. Van Patten. 



This small species is very abundant in Costa Rica, and is found also in Nica- 

 ragua. 



53. Anolis pachypus, Cope, sp. nov. 



Tail slender, cylindric, with equal scales, swollen at the base. Scales of the 

 abdomen smooth, those of the sides very small, on the back gradually enlarging to 

 two or three largest and faintly keeled rows on the median line, which are much 

 smaller than those of the belly. The head is rather short, its length equalling 

 that of the tibia, and one-half greater than its width. Scales of top of head sub- 

 equal in front, keeled ; smaller and angular behind, covering a three-sided area 

 behind the orbits, which is abruptly distinguished from the minute granules of the 

 temples and nape. No facial rugse distinct from canthus rostrales, but the frontal 

 region concave from between the orbits to the middle of the muzzle. Superciliaries 

 not larger than the scales of the five rows which separate them ; frontal concavity 

 with similar scales, and a little smaller than those of the three rows which separate 

 them from the canthal row. Latter consisting of six scales, and continued on the 

 edge of the eyebrow to near its middle in a manner unusual in the Anolidce. 

 Supraorbital region covered with projecting granules, except a single row of three 

 or four small keeled supraoculars near the supraorbital border. Four rows between 

 supraorbital series and occipital scale ; eight loreal rows. Only one series of very 

 small infralabials, the gulars running up to them in longitudinal lines. Meatus 

 auditorius larger than occipital scale. 



The feet are stout and clumsy; the wrist reaches the front of the orbit, and the 

 end of the third toe of the hinder foot, the end of the muzzle. The digital dilata- 



