NATURAL SCIENCES OF PHILADELPHIA. 



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Fingers elongate, free ; toes webbed at base only, remarkably elongate, tbe 

 foot from tarsus a Utile longer than tbe tibia, and equal from axilla to middle 

 of origin of femur, the width of head. Head flat, longer than broad, eyes 

 little prominent, one-half tympanic disc ; canthus rostralis little concave. 

 Body elongate, skin entirely smooth above : vomerine teeth in two almost 

 connate fasciculi which present a convexity to each narial opening and pos- 

 teriory where they are opposite the hind outline of the latter. Sacral 

 diapophyses much dilated, presenting a prolongation posteriorly. 



Length of fore limb, 9 lines ; posterior limb, 24.4 lines ; from end of muz- 

 zle to behind tympanum, 4.4 lines; muzzle to vent, 15 lines. 



Color above, bright leek green, with a brown band from the nostril through 

 the tympanum to the middle of the side, white-bordered above ; and a short 

 band on each side the ilium, white-bordered. Femora not spotted behind ; 

 limbs not cross-banded. Upper lip with a brown border ; its green becoming 

 yellow under the tympanum. Below whitish. 



Habitat. Mexican table land, north-east of city of Mexico. 



A species near in technical characters to the ewingii, r.egilla, and 

 squirella, but abundantly distinct from all, in its sacrum, feet, head, etc. 



Hyla stau fferi. 



Tongue rounded, a border only free ; a large gular vocal vesicle ; vomerine 

 teeth in fasciculi between nares, which are a little larger than the choanse. 

 Digits all short, with pallettes large ; the anterior free, the posterior short, 

 the palmation measuring half the length of the longest digit. The heel 

 extends to in front of orbit. Head plane, depressed, muzzle very prominent, 

 rounded. .Outline from above elongate oval, canthus rostralis weak, straight, 

 lores flat, oblique. 



Length of orbit equals frontal width. Skin of sides rugulose, otherwise 

 smooth above ; no appendages. Mizzle to rictus oris, 4 lines ; anterior limb, 

 6.4 lines ; muzzle to vent, 11.7 lines ; posterior limb, 17.1 lines. 



Color above dark olive, with a short longitudinal black bar over each scapula, 

 and one from eye to eye, with a trace along the coccyx. Below yellowish, 

 deeper to brown on the extremities. Upper lip olive, sending a pale line to 

 near axilla, sides minutely varied with dorsal and ventral tints. 



Habitat. Orizava, Mexico. Obtained by Prof. T. Sumichrast. 



The species sent from Orizava by Prof. Sumichrast to the Smithsonian 

 Institution are : 



Spelerpes chiropterus. 



Geotriton carbonarius. 



Hyla baudinii. 



Hyla staufferi. 



Hyla mio tympanum. 



Hylodes conspicillatus. 



Bufo valliceps (nebulifer, Gird.) 



Ran a sp. 



Sceloporus. 



Sceloperus. 



Sceloporus. 



Anolis nanno lea. 



Corythaeolus cristatus (Thysanodacty- 

 lus, Gray, Dracontura, Hallow.) 



Gerrhonotus gramineus. 



Diploglossus steindachneri. 



Oligosoma gemmingeri. 



Catostoma semidoliatum. 



Ninia collaris. 



Ninia diademata. 



Coniophanes fissidens ( Glaj hi rophis 

 lateralis, Jan Elenco.) 



Spilotes poeeilonotus. 



Atropus uudulatus. 



Hemidactylium pacificum. 



This species is of some interest, inasmuch as our native species of this genus 

 has hitherto been the only representative of its form. It differs from this in its 

 uniform brown color above and below, and in some more important points. 

 Vertebrse and costal folds between axilla and groin, seventeen, the latter not 

 prolonged dorsally, as in the scutatum. Head oval, elongate, lip rounded, 

 eyes large, prominent, longitudinal diameter longer than length of muzzle. 

 Muzzle to humerus, half length from latter to groin. Tongue elongate oval ; 



1865.] 



