48 BATE AC HI A. 



very characteristic species, both of which being apparently distinct 

 from the one upon which Tschudi has framed his genus, labelled in 

 the Museum of Paris, Hijla jachsoniensis. The latter name having 

 received no publicity until 1838, and the same species having been de- 

 scribed by Lesson in 1830, its nomenclature will read as follows: 



Ranoidea atjrea, GRB.—Eana aurea, Less. Yoj. Coq. Zool. II, i, 1830, 60. PI. 

 VII, fig. 2. (See page 62 of the present volume.) 



Ranoidea jachwnieyms, TsCH. Mem. Soc. Sci. nat. Neuch. II, 1838, 79. 



Hyla jachsoniensis, Mus. Par. MS.— DuM. & Bibr. Erp. g^n. VIII, 1841, 602. 



It is more closely allied to R. resjjlendens than to R. flavo-viridis. 

 We regret not being prepared to establish its identity or difference 

 upon the specimens of the Paris Museum. 



1. Eanoidea resplendens, Grd. 



(Plate III, figs. 7^12.) 



Car. spec. — Capite depresso, producio. Tympano magno, eJliptico> 

 Lingua modica. Plantarum digltis ad discos terminales usque pal- 

 matis ; memhrana emarginata. Supra viridi, maculis et lineis 

 aureis notata. 



Spec. Char. — Head depressed, elongated. Tympanum large, ellip- 

 tical. Tongue moderate. Toes webbed, up to the digital disks ; 

 membrane emarginated. Deep-green above, maculated and streaked 

 with gold. 



Syn. — Ranoidea resplendens, Grd. in Proc, Acad. Nat. Sci. Philad. YI, 1853, 422. 



Descr. — The general physiognomy of this species is most raniform ; 

 the head and body being quite elongated. The head is longer than 

 broad, depressed, subconcave on the occipital region, and flat ante- 

 riorly. The snout is prominently rounded, and equally declivous 

 towards the tip of the snout and sideways, where it is subconcave. 

 The canthus rostralis is but slightly apparent, and beneath which are 

 situated the rather small and subconical nostrils, equidistant between 

 the anterior rim of the eye and the extremity of the upper jaw. The 

 eyes are of medium size, subcircular j their diameter being equal to 

 the rostral distance between their anterior rim and the nostrils. The 



