CKOCODILIANS, LIZARDS, AND SNAKES. 617 



I have examined the heiiii penis in Tradtysdiinis, Lcpidothyris {fer- 

 nandi), Enprepes (carinatus), Eumeces and Mahuia. Tliey are smooth 

 and with more or less numerous longitudinal folds, excepting in Trachji- 

 saunis. Here the laminae diverge from the suleus proxiniad and turn 

 to a horizontal direction, meeting opposite the sulcus in a chevron 

 directed distad. In Euprepis carinafKN and Eumeces obsoletits some of 

 the plic.e are cross ribbed. In Lepidothi/yis fernandi the organ is 

 shortly bifurcate, and each division has a membranous welt next the 

 adjacent division. 



1 have examined the arches and limbs of the Chalcides lineatus with 

 the following results:' 



Scapular and pelvic arches present. Limbs of both pairs present, 

 very short, with digits 3-3. 



Scapular arch. — All the elements present, and presenting the true 

 characters of the Leptoglossa, namely, clavicles distally dilated and per- 

 forate, and interclavicle cruciform. The scapula and coracoid are fused 

 and osseous. The coracoid cartilage incloses a coracoid foramen, and 

 coraco precoracuid foramen with the cartilaginous precoracoid. Supra- 

 scapula large, cartilaginous. Sternum well developed, with cartilagi- 

 nous borders, no foramen, and four costal articulations. 



Feh'ic arch. — All tlie elements present, but slender; the inferior 

 arches directed anteriorly; the pubes in contact distally. The ischia 

 are separated by a narrow membrane, which extends forward to the 

 pubic symphysis. The ilium stands nearly vertical, its inferior portion 

 articulating with the distally fused extremities of the diapophyses of 

 two vertebrte. Except in the slenderness of its parts, the pelvis is like 

 that of Scincida^ with well developed limbs. 



Fiirbringer represents only three sternocostal articulations in the 

 C. tridactylxs. 



The food of the species of Scincida^ is principally insects. One 

 exception to this is a i)ea-green species of Liolepisnia from Australasia 

 from whose alimentary canal I took some seeds resembling cherry 

 stones. 



The Evesia monodacti/Ia Gray, from Ceylon, which is allied to Acontias, 

 I found to present the following characters of the arches and limbs: 



Scapular and i)elvic arches present. Anterior and i>osterior limbs 

 present, external, very rndimental, and undivided. 



Scapular arch. — All tlie elements i)rescnt. Sternum cartilaginous, 

 with two costals; chivicles osseous, i)r()ximally simple. Interclavicle 

 a simple, longitudinal, bony splint. Scapula and coracoid distinct; 

 oidy ossified on their posterior borders. Coracoid and precoracoid 

 cartilages not distinct, nor inclosing any fontanelles. Anterior limb 

 consisting of a humerus with a minute cubital segment. 



Pelric arch. — Elements ])resent subequal; the inferior directed for- 

 ward, meeting on the middle line, without longitudinal connection. 



Journal of Morphology, 1892, p. 236. 



