Cope.] -•-'" [Dec. 19, 



black lateral band ; three light stripes on head, the median bifurcating 



and joining the lateral ones on the muzzle E. furcirostris Cope. 



Frontal not divided ; twenty-four rows of scales ; a brown lateral band, 



pale-bordered above, on head and neck E. duged Thominot. 



a.a. Four supraorbitals. 

 Rows of body scales in twenty-two to twenty-four rows ; a lateral black 



band, pale bordered above and below ; head narrow 



E. brevirostris Glinther. 

 Rows of body scales twenty-four ; a dark, pale-bordered lateral band ; a 



median band bifurcating on muzzle E. lynxe Wiegmann. 



Rows of body scales twenty-eight ; a dark lateral band ; head wide ; 



large E. sumichrasti Cope. 



II. A nasofrenal plate. 

 Body scales in twenty-one rows ; two median dorsal rows, wider ; post- 

 mental not transversely divided E. schwarzei Fisch. 



Body scales in twenty-eight rows ; equal ; postmental plate transversely 



divided E. callicephalus Boo. 



When the limbs are appressed to the sides the feet are separated by the 

 length of the posterior foot. Back brown. The lateral and median stripes 

 are bordered with black from above the axillae forwards. The black unites 

 on the head, which is of that color above ; below the lateral black it is 

 yellow. Sides and lower surface of body and tail, blue. 



Length of head and body to vent, M. .054 ; of head to auricular meatus, 

 .009 ; width of head at do., .007. Length of posterior limb, .016 ; of an- 

 terior do., .011. 



Celestus chalyb^us Cope, Proceeds. Academy Philada., 1866, p. 321. 



This species differs from the C. steindachneri Cope, in having two pre- 

 frenals, one above the other. There is but one, an elevated prefrenal, in the 

 latter species. Both have two postnasals* one above the other. InD.chaly- 

 J)(BUS the limbs are shorter, not meeting when appressed, by the length of 

 the hind leg. In D. steindachneri they are only separated by the length 

 of the posterior foot. The latter species is well figured hj Bocourt in the 

 Miss. Sci. de Mexique. 



Besides the specimen of the D. chalyhceus from Jalapa, the Smithsonian 

 Institution has received the type from Orizaba from Sumichrast, and a 

 second specimen from West Tehuantepec from the same naturalist. 



SCELOPORUS ^NEus Wicgm. Uniform leek green above. From the 

 stomach of a Eutmiia scalaris. 



ScELOPORUs MiCROLEPiDOTus Wlcgm. From the stomach of a Crotalus 

 triseriatus. 



Catostoma semidoliatum D. & B. 



*In my diagnosis of the C. steindachneri, Pvoceeds. Acad. Phila., 1868, p. 123, 

 the word postnasal is misprinted frontal. 



