46G REPORT OF NATIONAL MUSEUM, 1898. 



pressed; paroccipital lying over the i)arietal at tlie inferior extremity. 

 Nojugal bone. No orbitosplienoid; the olfactory lobes inclosed below 

 by the frontal bone. Petrosal produced beyond semicircularcanalatthe 

 superior anterior angle, and without the oblique crest such as is char- 

 acteristic of the Geckonidfe. A subforaminal projection and groove, 

 the external wall of the groove as prominent downward as the internal, 

 so that the groove is open interiorly. Vomers swollen, separated for 

 most of their length by a deep groove. Palatines short and wide, 

 sending a postnarial process to the maxillary. Pterygoids broad and 

 flat in front, narrower i)osteriorly, with a short ectopterygoid Avithotit 

 descending angle, inclosing a maxillopalatine foramen. Basipterygoids 

 elongate. Sphenoid and basioccipital distinct; the latter distinct also 

 from exoccipitals. Occijiital condyle convex, without exoccipital por- 

 tion. Epipterygoid oblique, articulating below posterior to ectoptery- 

 goid process of pterygoid and above with petrosal only. Quadrate 

 straight, oblique, with a single conch, which is external to the rod-like 

 axis; condyle euiarginate. In the mandible the angular bone is small 

 but distinct, and the coronoid is j)roduced much farther anteriorly 

 than posteriorly on the external face of the ramus. The dentary 

 extends to about opposite the middle of the coronoid on the external 

 face of the ramus. The spleuial extends posteriorly but not anteriorly. 

 The Meckelian groove closed. In the hyoid apparatus all the elements 

 are x>resent, including a pair of elongate second ceratobranchials. 

 There is a free process of the ceratohyal anterior to its junction with 

 the hypohyal. 



The scapular arch is much like that of the Geckonidfe. The clavicle 

 is expanded and jierforate proximally. The interclavicle is subcruci- 

 form, with the limbs connected by laminate expansion. There is a 

 small proscapula which is connected at its apex with the epicoracoid. 

 Coracoid with one large emargination. Sternum without fontanelle, 

 supporting three ribs and a xiphoid rod, which supports but one rib. 

 No abdominal ribs. 



The hemipenis is closely similar to that of the Geckonida*. It is short 

 and deeply bifurcate. It has a single i)rominent welt. The surface of 

 this is smooth, but the remainder of the surface is calyculate. 



EUBLEPHARIS VARIEGATUS Baird. 



Euhlepharia variegatus Boulenger, Cat. Liz. Brit. Mus., I, 1885, p. 233. 

 Stenodactylus vai-ief/atits Baiud, Troc. Acad. Nat. Sci. Phila., 1858, p. 254 ; U. S. Mex. 



Bound. Surv.,Rept., 1859, pis. xxiii, figs. 9-27; xxiv, figs. 11-19.— Bocouirr, 



Miss. Sci. Mex., Rept., 1873, p. 51. 

 Coleonyx variegatus Cope, Proc. Acad. Nat. Sci. Phila., 1866, p. 125; Bull. U. S. 



Nat. Mus., No. 17, 1870, p. 13. 



Head very broad, about one fourth the head and body. Hind foot 

 contained six times in head and body. Above brownish or grayish 

 yellow, with irregular small blotches of light reddish brown, or else 

 with broad transverse bands from head to tail. Edges of jaw and 



