350 PROCEEDINGS OF THE ACADEMY OF 



spots may be observed on some of tbem. These agree in all points of squama- 

 tion with th specimens often seen, which exhibit pale dorsal and numerous 

 lateral spots and a lateral stripe. This is var. A of Ep. cenchria of Dr. 

 Gray. I have seen only young specimens of this, though the author just men- 

 tioned enumerates " an adult stuffed." Can it to be the young of the brown 

 species above mentioned ? Perhaps it is the Boa lateristriga of Boie, but that 

 species does not appear to have been described. No doubt there are other names 

 applicable to it. The E. crassus resembles it in point of labial plates and 

 coloratiou, but differs from it and the cenchria in having ten rows of scales 

 fewer. This is the most important peculiarity, it may be noted, which cha- 

 racterizes the Eunectes notaeus of the same region. 



Eunectes notaeus Cope, Synopsis Holcosus and Ameiva, &c, p. 10. No. 

 4707. Taken in the Paraguay River about thirty miles south of Fort 

 Coimbra, Brazil, near lat. 20 S. 



Stenostoma melanoterma Cope. 



Scales in fourteen rows. Tail five or sis times the breadth of the head in 

 length ; anal plate large. Eye large ; postnasal elevated to its line of posi- 

 tion, widely separate from the comparatively broad superciliary. Rostral 

 narrow ; prenasal and fronto-nasal separate. Parietals and postparietals well 

 developed, narrow. General color pale reddish white, with fourteen longi- 

 tudinal chestnut brown bands, one on each series of scales. Head and tip 

 of tail black. 



I have compared this species with S. albifrons, from Trinidad, where 

 the nasal and superciliary are in contact. If d'Orbigny's figure is correct, 

 the S. albifrons from Buenos Ayres is another species, having a broad 

 rostral plate and separate postnasal and superciliary. 



The melanoterma was taken at Corrientes. No. 5406. 



AMPHISBiENIA. 



Amphisbama c a m u r a Cope. 



Body thick, short ; tail short, obtuse, with sixteen rings. Preanal plates 

 ten, longer than broad ; preanal pores four. Muzzle abruptly contracted, 

 short, higher than broad ; swollen arched in profile. Rostral plate five-sided ; 

 naso-rostrals nearly transversely parallelogrammic ; frontonaso-rostrals nearly 

 as broad as long ; occipitals rounded anteriorly and posteriorly. Labials four, 

 three ; high. Eye in the superior angle of the ocular, which is acute ante- 

 riorly, and bounded behind by three segments of the first annulus. Mental 

 plate nearly as broad as long. Length of head and body 15 inches; of tail, 

 2 inches 6 iines. Head and upper parts of body and tail brown ; below, and 

 a broad collar, yellow. No. 5860. 



This species is most nearly related to A. an gu s tif r ons, from Buenos 

 Ayres. The head and plates are relatively much shorter and more obtuse ; 

 there is one more labial ; the yellow collar is not seen in the latter. 



Lacertilia. 



Ophiodes striatus Wagl., Dum. Bibr., v. 789. 



Ophiodes exhibits the peculiar structure of the scales and tongue charac- 

 teristic of the Diploglossinse, as stated to exist in Panolopus, &c, by the 

 author in a previous memoir.* It evidently succeeds the latter genus in the 

 system. No. 5819. (Braz.) 



Emoea f r e n a t a Cope, Pr. A. N. S. Philada., 1862, p. 187. 



Mabuia dorsivittata Cope. 



A species to be contrasted with the surinamensis in the author's table 



* Pr. A. N. S. Philada., 1862, p. 188. 



[Sept. 



