L. V. MÉHELŸ 
222 
Leptodactylus mystaceus Spix is also closely allied to Leptodacty- 
lus albilabris Gthr. * from the West Indies and Mexico, which shows 
almost the same morphological characters,** but it has the snout slightly 
shorter and less pointed, the tongue deeper notched behind, the eyes and 
tympanum proportionally smaller, the dark canthal and labial band and 
the whitish facial stripe between these not so sharply pronounced, the 
dark tympanal marking, the white crescent-shaped spots in front and 
behind the tympanum less distinct and not so regularly edged than those 
of Leptodactylus mystaceus Spix. 
10. Leptodactylus typhonius Daud. 
Rana typhonia Daudin, Hist. nat. des rainettes, de grenouilles etc., 1803 
p. 55, tab. XVII, fig. 3, 4 and Hist. Nat. des Kept., Vili, 1802—3, p. 106, tab. XCV, 
h g- h 2. 
! Rana, pachypus juvenilis var. 2. Spix, Spec. Nov. Testűd, et Kanarum, 1824 
p. 26 (sec. spec, typ.).*** 
/ Rana mystacea Spix, 1. c., p. 27, tab. Ill, fig. 3 f (sec. spec. typ.). 
Leptodactylus typhonius Boulenger, Cat. Batr. Sal., 1882, p. 246. 
Five specimens from Villa Sana, collected in April 1903 ; length 28 
29, 36, 41 ( $ ) and 46 ( 5 ) mm. from snout to vent. 
Toes not fringed. The tibio-tarsal articulation reaches the centre of 
the eye or (in the young specimens) the nostril. Back with distinct longi¬ 
tudinal folds and two glandulous folds on each side. Metatarsus smooth, 
without pustular rows. Olive or rosatre-grey above with strongly pro¬ 
nounced, black-edged dark spots all over the back and flanks ; two or four 
* Dr. A. Günther, Ann. & Mag. Nat. Hist., (3) IV, 1859, p. 217 ; G. A. Bou¬ 
lenger, Bull. Soc. Zool. de France, VI, 1881, p. 33 and Cat. Batr. Sal., 1882, p. 245, 
tab. XVI, fig. 4, 4 a. 
** I had opportunity to compare a specimen from the Cozumel Island (Yuca¬ 
tan) through the kindness of Mr. Boulenger. An other from Mazatlan (west coast 
of Mexico), received from the Museum of Vienna, a male with external vocal sacs, 
agrees well with Boulenger’ s Leptodactylus prognathus from Esperanza (Argen- 
tinia) and descents perhaps from an other country. 
*** Already stated by Peters (Monatsber. Akad. Berlin, 1872 [1873], p. 199. 
•j- In the denomination of Spix’s plate III (below) the number i must be chan¬ 
ged with 2, in accordance with the text (p. 26, 27). This treating corresponds fully 
with the drawings given on the plate and also with Spix’s types from the Museum 
of München which I have examined. The specimen figured by Spix (pi. Ill, fig. 3) 
is an adult male with black external vocal sacs. Peters asserts erroneously that the 
specimen figured under i on Spix’s plate III belongs also to Leptodactylus typho¬ 
nius Daud. 
