94 GECKOITIDJB. 



«• Ad. Australia. (Type). 



b, e. Ad. Houtman's Abrolhos. Mr. Gilbert [0.]. (Types of 



P. bilineatus.) 



d-f. Ad. Champion Bay, N.W. Mr. Duboulay [C.]. 



coast of Australia. 



g. Ad. North-west coast of Haslar Collection. 



Australia. 



23. Phyllodactylus unctus. 



Diplodactylus unctus, Cope, Proe. Ac. Philad. 1863, p. 102. 



"Scales rounded, flat, in about thirty-six rows on the dorsal 

 region ; those of the muzzle smaller than dorsal, little larger than 

 those on the occiput. Internasals in contact. Seven superior 

 labials, including that under the pupil ; six inferior, to the same 

 point, the last two very smaU, the first larger than the second, 

 extensively in contact with the first pair of mental plates, which 

 bound the symphyseal posteriorly. Each of the former is bounded 

 by three smaller, and these are succeeded by a few rows which 

 diminish in size. Terminal disks with straight outlines. Tail 

 without tubercles. Anal scales similar to the abdominal. Auri- 

 cular opening as long as pupil. Premaxillary teeth five. Above 

 grey, shining, with five broad, blackish, centrally-pale cross bands, 

 from base of tail to interscapular region ; a dark band from the 

 muzzle through the eye, a cross band on occiput, and various 

 irregular spots on the top of head and labial regions. Length 

 from end of muzzle to auricular meatus 12'", from the same point 

 to vent 4'5"'." 



Cape St. Lucas, Lower California. 



24. Phyllodactylus riebeckii. 

 Diplodactylus riebeckii, Peters, Sitzb. Nat. Freunde Berlin, 1882, p. 43. 



Digital expansion with straight anterior border; seven trans- 

 verse lamellae under the middle toe. Ear-opening a crescent- 

 shaped slit, the convexity postero-inferior. Head covered with fine 

 granules much larger than the dorsal scales. Rostral four-sided, 

 almost twice as broad as high ; nostril pierced between the rostral, 

 the first labial, and three nasals; eleven upper and ten lower 

 labials ; mental once and a half the width of the first infralabial, 

 its posterior obtuse angle between two elongate pentagonal chin- 

 shields, on each side of which there are three others rapidly 

 decreasing in size. Dorsal scales flat, slightly larger than the 

 ventrals. The fore limb reaches the end of the snout ; the hind 

 limb reaches the shoulder. Grey above, with blackish-brown spots 

 arranged in cross bands on the back, in longitudinal lines on the 

 nape ; broad cross bands on the tail ; yellowish grey inferiorly, the • 

 throat spotted and marbled with black. 



