THE GENUS CNEMIDOPIIORUS. 



49 



antebrachial scales ; the usual number being 3-2 ; and the femorals are more numer- 

 ous than in the C g. gularis. The coloration is also quite distinctive. But one 

 specimen is known, and that is from Southwestern Texas. The discovery of other 

 specimens will determine whether this is or is not a true species. In the obsoles- 

 cence of the color pattern posteriorly it resembles the C. g. semifasciatus, following. 



CnemidopJiorus gularis sericeus Cope. 



Catalogue Number. Number of Specimens. 



Locality. 



Whence obtained. 



Character of Specimen. 



■ 



15,650 



1 



San Diego, Tex. 



Wm. Taylor. Alcoholic. 



Cnemidopliorus gularis semifasciatus Cope. 



Muzzle compressed, rather elongate ; frenal with frenoocular, longer than high. 

 Large scales of the collar confined to the middle portion, smaller scales appearing on 

 each side, and granules on the edge of the collar laterally. Posterior supraorbital 

 small and divided on both sides, perhaps abnormally. Interparietals as wide as pari- 

 etals, and extending farther posteriorly. Larger scales behind parietals few in num- 

 ber. Brachial scales in six, femorals in six rows. Postantebrachials in three or 

 four rows. Femoral pores twenty. Dorsal scales minute. Anal plates three large 

 ones with eight to ten smaller ones on the sides and in front. The hind leg a little 

 short, the longest toe, when extended, not reaching the meatus auditorius by the 

 diameter of the latter. 



Total length 300 mm. ; do. to angle of mandible 25 mm. ; do. to collar 32 mm. ; 

 do. to axilla 42 mm. ; do. to vent 100 mm. Length of fore limb 30 mm. ; do. of fore 

 foot 13 mm. ; do. of hind leg 04 mm. ; of hind foot 36 mm. 



The color is uniform olivaceous above and below, with the following black 

 marks : There are three rows of black spots on each side of the middle line above ; 

 the superior small, subquadrate, the second larger and transverse, the inferior forming 

 short crossbars. The superior row extends from the interscapular region to the mid- 

 dle of the length of the back ; the second row extends farther and the inferior row 

 extends nearly to the groin. Limbs, head, belly and tail unspotted. 



This form has various peculiarities which entitle it to be regarded as a subspe- 

 cies, and possibly as a species. Bat two specimens are known to me. In ]S"o. 3033 

 the black spots are smaller, and are restricted to the anterior fourth of the length of 



A. p. s. — VOL. xvir. 



a. 



