494 Mr. G. A. Boulenger on a neio SnuJce. 



edging, but the lines on the under surface of the interfemoral 

 white. 



Ears fairly long, their anterior edge evenly convex, their 

 posterior deeply emarginate. 



Skull and teeth of normal proportions, the canines scarcely 

 visible from above. Small upper premolars subequal in 

 transverse area, the posterior about half the height of the 

 anterior, very slightly drawn inwards, and clearly visible 

 from without. 



Dimensions of the type : — 



Forearm 39 millira. 



Head and body 44; tail 41; ear 14; third metacarpal 35; 

 lower leg 17; hind foot (s. u.) 7*5. 



Skull : front of canine to back of ??i' 5" 5 ; greatest length 

 (in another specimen) 14' 5. 



Nab. Tucuman. Other specimens from Salta (i5/;e^a^2j'«i) 

 and Bolivia (Simons). 



Type. Female. B.M. no. 0. 7. 9. 4. Collected 7th April, 

 1899, by L. Dinelli ; presented by Oldfield Thomas. Five 

 specimens examined from the type locality. 



It would thus appear that in Paraguay and the neighbiuriug 

 parts of Argentina four species of Myotis are to be found, 

 distinguishable as follows : — 



Greueral colour dark greyish or blackish. 



Lower belly not -whiter. No naked patch be- 

 tween shoulders M. nigricans, Wied. 



Lower belly passing into white. A naked 



patch between shoulders M. albescens, Geoff. 



General colour more or less rufous or fawn. 



Lower belly passim^- into yellow. Dorsal fur 



short, reddish throughout M. ruber, Geoff. 



Lower belly not yellow. Dorsal fur long, 



dark at base M. Dinellii, Thos. 



LXVIII. — Description of a new Snake of the Genus 

 Pseudechis from Queensland. By G. A. Boulenger, 

 F.K.S. 



Pseudechis Colletti. 



Eye rather small, its diameter nearly equalling its distance 

 from the mouth. Rostral as deep as broad? (end of snout 

 damaged in the single specimen) ; frontal small, once and a 

 half as long as broad, not longer than the praifrontals, much 

 narrower than the supraoculars^ half as long as the parietals ; 



