118 



ON THE BATRACHIA AND REPTILIA OF COSTA RICA. 



small postbrachials. Anal scuta ; one large round submedian disk, and two or 



three much smaller in advance of it. Two rows of large tibial scuta, with a few 



odd scuta on the inner side. No anal nor heel spurs. Nostril on the naso-inter- 



nasal suture. Frontal scute rather short, undivided ; parietals and interparietals 



short, followed by a few scales larger than the granular ones which cover the back 



and the nape. The hind limb extended reaches the front of the tympanum by 



the end of the longest toe ; the fore limb extends to just beyond the end of the 



muzzle. 



M. 



.215 



.082 

 .035 



Total length 

 Length to vent . 



" to axilla 



" to tympanum . 

 to orbit 

 Width of head at angle of jaws 

 Length of hind limb . 



" of hind foot 



.017 

 .008 

 .013 

 .056 

 .030 



Color olivaceous ; two lateral light bands separated by a darker shade than that 

 of the dorsal interval, and crossed, like the side below the lower line, by black 

 bars. Below immaculate, or with black spots on the gular region. 



Three specimens of this species were obtained at Old Harbor by Mr. Gabb, to 

 whom I dedicate it. Its affinities are with the A. guttata, Wiegm. 



DIPLOGLOSSA. 



43. DlPLOGLOSSUS MONOTROPIS, Kulll. 



44. Gerrhonotus fulvus, Bocourt, Bulletin Archives du Museum, 1872, p. 104. 



Agrees with the description of Bocourt excepting in having the prefontal plates 

 distinct, and in having a narrow dark band on each side of the back. 

 From the summit of the Pico Blanco. 



NYCTISAURA. 



45. Coleonyx elegans, Gray, Ann. Mag. Nat. Hist., 1845, p. 162 ; Dumeril, Gymnodactylus 



coleonyx, Archives du Museum, 1856, p. 483; Brachydactylus mitratus, Peters, Monatsber. 

 K. Preuss. Akad., 1863, p. 42. 



Costa Fvica, fide Peters. 



46. Phyllodactylus, indet. 



47. Sph^rodactyltjs glaucus, Cope, Proceed. Acad. Philada., 1865, p. 192. 



Variety with dark bordered interscapular and sacral transverse spots. Near 

 Sipurio. 



