16. PHYIiOBACTTLirS. 83 



arranged in regular longitudinal rows. They are round, and very- 

 distinct from the BmaU round scales between them, and not almost 

 assimilated to them as in P. incequalis. There are eight superior 

 labials to below the pupil of the eye. The mental scutum is very 

 large and urceolate; it has two lateral and a short posterior 

 median facet, each one corresponding to a scutum j the anterior 

 of these is the first labial, which is about twice as large as the 

 scutum that follows it. Behind these is a transverse row of five 

 subround scales, of which the median is in contact with the mental. 

 The next row embraces eight, arranged in an undulating manner. 

 The scales diminish but slowly to the size of the gulars. The toes 

 are slender as in P. ■miorophylliis, but the expansions are large as 

 in P. incequalis. "When the limbs are appressed to the side, the 

 elbow reaches the base of the toes in this species, but only to their 

 tips in P. inaequalis ; the length of the toes in P. miorophyllus is 

 intermediate. The ground-colour is very light, brilliantly white on 

 the inferior surfaces. Between the axilla and groin the back is 

 crossed above by six narrow black cross bands. These bifurcate or 

 break up on the sides ; the axillar band breaks up on the back, and 

 two anterior to it are represented by spots. A broad dark band 

 passes from the nostril through the eye and breaks up on the sides 

 of the neck. Limbs indistinctly cross-barred." 



Length to vent 43 mUlim. 



Length to ear 13 „ 



Width of head at ears . . 7 ,, 



Length of fore limb .... 14 „ 



Length of hind limb .... 21 „ 



Chimbote Valley, Peru. 



8. Phyllodactylus inaequalis. 



PhyUodactylus insequalis, Cope, Journ. Ac. Philad. (2) viii. 1876, 

 p. 174. 



" Scales of back and sides subequal, the former of unequal sizes 

 but without elevated or keeled tubercles. Yentral scales larger, 

 subround, smooth, those bordering the vent in front smaller. 

 Muzzle with convex scales larger than those on the occiput; Labials 

 to below the pupil, six above ; below five, followed by three others ; 

 the inferior first three are the larger. Mental scutum longer than ' 

 wide, angulate behind, with an oval scute on each side of the angle, 

 which meet at an angle, each on the middle line. Behind these are 

 round scales from which others graduate into the granules of the 

 throat. Meatus auditorius a very smaU slit. Eye contained nearly 

 twice in length of muzzle. The fore limbs extended reach the front 

 of the orbit ; the hind limbs extend to the appressed elbow. Scales 

 of the normal tail square and flat above, rounded and a little 

 larger below. Above yellowish, with seven blackish cross bands 

 from nape to groin, somewhat connected by oblique and longitudinal 



s 2 



