KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 52. N:o 4. 21 
to be seen in the figures, published in Catalogue of Batr. Sal. and in Animals of 
Australia, as well as in FLETCHER'S description in Proc. Linn. Soc. N. S. Wales, 1891, 
p. 267. In the present specimens the cross is not so plainly visible as in the figures 
mentioned, although the dark markings are quite as distinct and quite as sharply 
limited from the light ground colour as in those. The dark pattern is composed of 
three large median spots and four lateral pairs, each spot, as FLETCHER says, formed 
by >»very dark (black) not very much raised glandular warts or papille of several 
sizes. .. The largest warts for the most part outline the pattern, and border the 
insular patches». The different warts in a spot are separated by lighter colour, yet 
not as light as the ground colour. 'The foremost of the median patches is trans- 
versely triangular and placed between the eyes, whereas the two others are longitu- 
dinally oval and placed, one on the anterior, the other on the middle part of the 
back. Of the pairs the first appears as two broad bands from the tip of the snout 
to the eye, the second is placed behind the eyes, with a rather indistinet branch 
extending downwards to above the axil, and the third immediately behind the second 
and sometimes more or less blended together with this one into a crescent shaped 
marking. This third pair which is placed somewhat in front of the middle of the 
body is the largest, and forms the cross-bar of the cross; at last a 4th pair of pat- 
ches occupies the lumbar region, forming an enlarged foot to the cross. Between 
the median spots and surrounding them as well as between the inner borders of the 
lateral ones small dark dots are scattered by which a broad dark median band with 
very different intensity of colours it produced (fig. 7). This band makes the stem 
of the cross which in the figures mentioned appears to be formed by a single large 
marking. 
In two of the large specimens, as well as in all the small ones, this pattern is 
very distinct, whereas in the two other large specimens the patches are rather in- 
distinct. If this is due to a different state of preservation, or if it is an individual 
variation, I cannot decide. According to FLETCHER an »immersion in spirits very 
soon produces a washed-out effect», and very probably they are only bleached spe- 
cimens. 
In other characteristics the West-Australian specimens seem to agree very well 
with the East-Australian ones. Judging from the descriptions, the only difference 
I am able to see, except in colour as already mentioned, is the somewhat more web- 
bed toes of these specimens. According to BoULENGER the toes are webbed at the 
base, but, as shown in fig. 8, the toes of these specimens may be considered at least 
as half webbed. Perhaps we have here the same kind of variation in the develop- 
ment of the web as in Limnodynastes ornatus, both species being typical burrowers 
(cfr SPENCER, the Horn Expediton). 
Hyla peronii (BiBR.) TscHUDI. — 3 specimens from Kimberley Division, N. W. 
Australia: one (a female, 42 mm. with small eggs) in a »billabong»>» (clay-pit) at Jedda. 
25 miles from the coast, and two specimens (a male 44 mm., a female 49 mm. with 
