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L. Y. MBHELŸ 
horny tiped.* The coloration is in both species the same, but Paludicola 
albi from shows on the upper surface of the snout a triangular bright 
held, minutely and rather indistinctly marbled, further on the middle of 
the back in the anterior ring of the 8-form a distinct greyish-white round 
spot. Paludicola albifrons has not externally visible lumbar glands, but 
a section through the skin shows like glands, although not so well deve¬ 
loped as in Paludicola fuscomaculata Stdr. Above this glandulous area 
of the skin runs the undulated dark-brown band to thighs, without to 
form a black eye-shaped spot. In this respect stands Paludicola 
albifrons on a lower degree as Paludicola fuscomaculata and must be 
regarded as the phylogenetic precursor of the latter. 
7. Eupemphix Nattereri Stdr. 
(PL XIII, fig. 8 , 9.) 
Eupemphix Nattereri Steindachner, Sitzungsber. Acad. Wien, XLVIII, 1863, 
p. 189, tab. I, fig. 6—9 ; Verfi. zool.-bot. Ges., Wien, XIV, 1864, p. 271 ; Boulenger, 
Cat. Batr. Sal., 1882, p. 233 and Ann. & Mag. Nat. Hist. (6) I, 1888, p. 188. 
Paludicola edentula Boettger, Zeitschr. f. Naturw., LVIII, 1885, p. 243. 
A young specimen (length 24 mm.) from Villa Sana, collected in 
April 1903, which agrees in every respect with Dr. Steindachner’ s de¬ 
scription. Figure 8 (pi. XIII), based in its outlines on Dr. Steindachner' s 
figure, because my specimen is unfit for a drawing, shows its natural 
colour and markings. 
From the great interest are the two black, white edged lumbar spots, 
supported with a flat oval gland. This spots certainly belong into the 
group of defence-markings, because the posterior end of the coccyx 
makes the impression of a snout, the two lumbar spots of two black eyes 
and the hind limbs of a moustache or the fore limbs of a much greater 
animal, to keep off the attacks of the enemies, if the frog sits in that 
way that its anterior half is conceiled among the plants. 
I am convinced that these glandulous spots, present as well in Pa¬ 
ludicola fuscomaculata Stdr. as in Pleurodema Bibroni Tschudi and 
Eupemphix Nattereri Stdr., which have no physiological sense 
* This second tarsal tubercle (not mentioned in literature) on Spix’s both 
specimens sharply pronounced, but quite absent on my Paraguayan specimens of 
Paludicola fuscomaculata Stdr. and also on Dr. Steindachner’ s type, which I had 
opportunity to compare from the Museum of Vienna. 
