REPTILES. 223 



tallic tint of purplish under the head, greenish under the chest, and coppery under the belly 

 and tail. 



Collected near Santiago, Chile, where the species must he scarce, judging of it by the fact that 

 only one specimen was found amongst the numerous of the other species. 



Plate XXXVIII, fig. 13, represents Proctotretus stantoni, in profile and of the size of life. 



fig. 14, the head seen from above. 



fig. 15, side view of the head. 



fig. 16, under view of the head. 



fig. IT, anterior limb from beneath. 



fig. 18, posterior limb from beneath. 



fig. 19, dorsal scales. 



fig. 20, abdominal scuttella?. 

 Figs. 14 — 20 are slightly magnified. 



We would not have concluded the history of the new members thus added to the " Fauna of 

 Chile," by the exertions of the United States Naval Astronomical Expedition, without in- 

 scribing the name of one who was its father and its promoter, Hon. Fred. P. Stanton, of Ten- 

 nessee. Science owes a debt of gratitude to all the enlightened men, who, by the position they 

 hold in the councils of nations, declare themselves the patrons of scientific researches. 



FAMILY OF LACERTID . 



Genus APOKOMERA, Ddm. & B. 



G-EN. CHAR. Base of tongue not sheathed, bifurcated upon its extremity, covered with sub- 

 rhomboid and subimbricated papillae. Teeth on the palate. Intermaxillary teeth conical and 

 simple. Maxillary teeth compressed, ajiart, acute, and curved ; the anterior ones simple, the 

 following notched at the summit of their anterior margin. Perforation of nostrils from behind 

 forwards, situated on the sides of the snout, near its extremity and between three or four plates. 

 Eyelids present. A tympanic membrane stretched inside the auditive orifice. Transverse 

 and simple folds under the neck. Ventral scutellEe small, quadrilateral, smooth, and disposed 

 alternatively. No femoral pores. Hands terminated each by five, a little compressed, fingers, 

 not carinated beneath. Five toes, with internal edge tubercular. Tail cyclo-tetragonal. 



Stn. Aporomera, DuM. & B., Erp. gen. V. 1839, 69. 



GuicH. in Gay, Hist, de Chile, Zool. II, 1848, 58. 



Obs. This genus embraces, as yet, but two species, both South American. 



APOEOMEEA OKNATA, Dum. & B. 

 Plate XXXIX, Figs. 1—4. 



Spec. char. Cephalic plates subconvex and smooth. Auricular orifice subcrescentic, convex 

 posteriorly and folded upon the latter margin. A double series of supralabial plates. Tempo- 

 ral shields small, polygonal, and rugose. Sides of neck folded and covered with small 



