CROCODILIANS, LIZARDS, AND SNAKES. 



1089 



dark shading at the ends. lu young specimens the head is more or less 

 marked with obscure blackish marks. This species is distinguished by 

 its long compressed muzzle, as well as by its peculiarities of squamation. 

 The only specimen of this species which I have seen living was taken 

 in a seine net with which I was fishing near the bank of the San Fran- 

 cisco River. It dove into the net, seeking the bottom of the water as 

 a i)lace of concealment, as is the habit of the E. oneJanofjasfer, and con- 

 trary to that of the U. satirita and U. macrostemma, which swim prefer- 

 ably on the surface, seeking concealment under the banks. 



Eutd'tna multimaculata Cope. 



EUT.^NIA RUFOPUNCTATA Cope. 



ChUopoma rufopunctatum Cope iu Yarrow, Kept. U. S. Expl. Surv. W. of 100th 



Mer., V, 1875, p. 544. 

 Stypocemits rufopnnctatus Cope, Proc. Amer. Phil. Soc, 1885, p. 387. 

 Tropidonotus rufopnnctatus Boulenger, Cat. Snakes Brit. Mus,, 1, 1893, p. 1'14. 



Fig. 312. 



Edivknia hufopunctata Cope. 



X1.5. 



Type. 



Southern Arizona. 



Cat. No. SliOO, U.S.N.M. 



Rostral plate turned over on the superior face of the muzzle, and 

 with a truncate posterior border; the transverse extent three times the 

 length. Internasals a little longer than wide; the prefrontals decurved 

 laterally. Xasal long and rather narrow, slightly recurved on the ui)per 

 face of the muzzle in front. Loreal elongate, and with convex superior 

 border, passing partly below the superior part of the preocular. Pre- 

 ocular higher than wide, in contact with frontal. The latter plate elon- 

 gate and obtuse behind, wider than superciliaries. Parietals elongate. 

 Temporals 1-4, the anterior large, bounding the sixth and seventh supe- 

 rior labials. Postoculars three. Superior labials eight, all longer than 

 deej), the last small; the fourth and fifth bounding the orbit below ; the 

 sixth and seventh bounded by the anterior temi)oral above. ^Slnc inle- 



NAT MUS 98 G9 



