Barbour and Dunn — Herpetological Novelties. 161 



Eleutherodactylus altamazonicus, sp. nov. 



Type M. C. Z. 2028, from the upper Amazon and probably collected by 

 the Thayer Expedition at Nauta. 



Vomerine teeth in two elongate groups, directed backward, converging 

 slightly, well separated and extending from opposite the centers of the 

 choanae to well behind the openings; snout rather depressed and oval; the 

 orbital diameter equalling the distance between the eye and the nostril; 

 nostril very near tip of snout; interorbital space but slightly broader than 

 upper eyelid; head wider than body; tympanum small, barely distinguish- 

 able, about one-fourth the diameter of the eye; fingers short, first not 

 extending beyond second; toes moderate, with no trace of web; discs of 

 fingers and toes moderately v/ell developed; subarticular tubercles large; a 

 large inner and tiny outer metatarsal tubercle; the length of the foot equals 

 the distance from nostril to axilla; the tibio-tarsal articulation reaches to 

 between eye and nostril; skin rough, more granular on sides than on dorsum, 

 belly plicate with a well marked discoidal fold ; inner side of thighs strongly 

 granular. 



Color: rich mahogany brown, two light spots between the eyes; lips with 

 vertical bars; thighs clouded with dark brown on light; lower surfaces 

 light brown, almost uniform. 



It seems at first thought rash to add other names to this already densely 

 overpopulated genus but no other course seems practicable. 



Eleutherodactylus noblei, sp. nov. 



A determination of the various Eleutherodactyli from Costa Rica has 

 been a task by no means easy of accomplishment. Dunn took the follow- 

 ing : E. bransfordi (Cope) at Orotino, Guapiles and Zent; E. ceresinus 

 (Cope) at Zent; E. diastemma (Cope) at Monteverde; E. fleishmanni 

 (Boettger) at Sta. Cecilia, Guapiles, La Palma and Cariblanco; E. lanci- 

 formis (Cope) at Navarro and Guapiles; E. polyptychus (Cope) at Monte- 

 verde, and Guapiles; E. rhodopis (Cope) from Camino del Rio; and E. 

 rugosus (Peters) from Monteverde. The types of lanciformis have been 

 examined in the U. S. National Museum and they force the conclusion that 

 E. humeralis Fowler (Proc. Acad. Nat. Sci. Phila., 1916, p. 395, fig. 2) is a 

 synonym of this form. The new species now described is allied to lanci- 

 formis. The new type appears also to be represented by two very closely 

 allied variants of the same stock, viz : Dunn's two examples from Guapiles, 

 Costa Rica, and another individual from San Miguel Island in Panama Bay, 

 collected years ago by Mr. W. W. Brown, and which has rested here, a 

 puzzle, ever since. This will probably ultimately prove to represent a 

 distinct race or subspecies, possibly confined to the Pearl Islands in the 

 Bay of Panama. More material is necessary to settle this point. 



Type, a large adult M. C. Z. 7827 from Guapiles, Costa Rica. E. R. 

 Dunn. Paratypes, M. C. Z. 7826 from Guapiles and M. C. Z. 8024 from 

 San Miguel Island, Panama Bay. 



Vomerine teeth in two triangular groups between and well behind the 

 choanae, but very narrowly separated from them ; (in lanciformis the groups 



