16. PHYIXODACTYltrS. 79 



1. Phyllodactylns tubercxilosiis. 



Phyllodactylus tuberculatus, Gray, Cat. p. 160. 

 Phyllodactylus tuberculosus, Wiegm. Nova Acta Ac. Leop.-Carol. 



xvii. p. 241, pi xviii. fig. 2 j Hum. Sf JBibr. iii. p. 396 ; Baird, U.S. 



Mex. Bound. Surv. ii. Herp. pi. xxiii. figs. 1-8 : Bocourt, Miss. 



Sc. Mex., Rept. p. 43, pL x. fig. 3; CShaughn. Ann. 8f Mag. 



N. H. (4) xvi. 1876, p. 262. 

 Discodactylus tuberculosus, Fitzing. Syst, Rept. p. 96. 

 Phyllodactylus xanti. Cope, Proc. Ac. Fhilad. 1863, p. 102. 



Head oviform, much longer than broad ; snout rounded, longer 

 than the distance between the eye and the ear-opening, once and 

 one third the diameter of the orbit ; forehead concave ; ear-opening 

 rather large, narrow, oblique. Body and limbs moderate. Digits 

 slender, the distal dilatation large, truncate, its diameter one half 

 or two fifths that of the eye ; the slender part of the digit with 

 narrow transverse lamellae, about ten under the fourth toe, the 

 distal one divided. Snout covered with equal granules ; hinder part 

 of head and temples with minute granules intermixed with large 

 ones ; the scales on the border of the eyelid forming a rather strong 

 denticulation . llostral four-sided, twice as broad as high, with 

 trace of cleft obove ; nostril pierced between the rostral, the first 

 labial, and three or four nasals, the anterior, or upper, large and in 

 contact with its fellow ; six or seven upper and as many lower 

 labials ; mental large, pentagonal, in contact with two chin-shields, 

 which are followed 'by extremely small polygonal shields passing 

 rapidly into the minute granules of the gular region. Back and 

 limbs above with small unequal granules intermixed with large 

 trihedral keeled tubercles ; on the back these tubercles are arranged 

 in seven more or less irregular longitudinal series on each side of 

 the vertebral line ; these tubercles somewhat variable in size, some- 

 times nearly flat. Lower surfaces with small imbricate smooth 

 scales, in 25 to 30 longitudinal series, and about 65 transverse 

 series between constriction of neck and vent. Tail cylindrical, 

 tapering, covered with smaU imbricate smooth scales ; larger, pointed, 

 feebly keeled scales forming verticils on the upper part of the tail ; 

 a median series of transversely dilated scales inferiorly. Light 

 grey-brown above, with dark-brown spots ; a dark-brown streak on 

 the side of the head, passing through the eye; tail with dark 

 annuli ; lower surfaces white. 



Total length 119 millim. 



Head 18 „ 



Width of head 13 „ 



Body 47 „ 



Fore limb 21 „ 



Hind limb 27 „ . 



TaU 54 „ ' 



California ; Central America. 



