Annals of the Transvaal Museum. 
53 
the diameter of the eye : the webbing of the feet is not more than 
two-thirds : the inner metatarsal tubercle in one specimen (No. 1022) is 
large, prominent, and almost shovel-shape. 1020-1024. 
There are in this collection four other distinct species of this genus, 
which we are however unable to identify: thus there is a species which 
we have placed near M. flavicrus and M. inaudax , Per., and another near 
M. lugubris , A. Dum., and M. ambreensis , Mocq. : also a species we are 
unable to place at all, and another which is characterized by the feeble 
webbing of the toes and a somewhat glandular dorsal surface, but which is 
neither M. aerumnalis nor M. albofrenatus. These specimens would 
appear to be for the most part juvenile. 
Genus Rhacophorus, Kuhl. 
R. GOUDOTI, Tschudi. Three examples from Ambohidratrimo (forests 
of Past Imerina). The two largest specimens measure 72 mm. from 
snout to vent. 1067-1069. 
R. MADAGASCARIENSIS, Pet. A single specimen at Ambatoharanana. 
In life, colour above chestnut-brown, without the large irregular grey spots 
as given in the Brit. Mus. Cat. description (p. 91) : tympanum about two- 
thirds the diameter of eye : vomerine teeth somewhat obliquely set on the 
palate : the nostril a trifle nearer the eye than the tip of the snout. 
Length from tip of snout to vent 63*5 mm. 965. 
R. OPISTHODON, Blgr. Twenty-six specimens, mostly juvenile, from 
various parts of the island : localities : from the forests of the east, Ambilo, 
Brickaville, Tamatave, and a single specimen (No. 1095) from Ambato- 
haranana : from the south-west in the fringing forest along the Onilahy 
River, Tongobory, Andranolaho, and Maroamalona. 
The canthus rostralis in what we presume to be the young of this 
species is not straight as described for the type, but is somewhat curved 
inwardly : the snout is also relatively shorter and the tympanum smaller. 
A single specimen (No. 1095), which measures 41 mm. from snout to vent, 
has been referred to this species with doubt ; it differs from the rest of the 
series in having the tympanum scarcely more than half the size of the 
eye, and in that the skin on the back and on the upper part of the limbs is 
very finely reticulated and bears small scattered granules. 
If the size of the tympanum is really of such importance as is 
attached thereto in Mocquard’s key, immature specimens could not, we 
believe, be easily identified. 
The largest specimen measures 83 mm. from snout to vent. 
1070-1095. 
R. MOCQUARDI, Blgr. ( 9 ). Four examples from Analamazotra and 
Ambatoharanana. The largest specimen measures 33 mm. from snout to 
vent. 
In identifying these specimens we have attached considerable import- 
ance to the small size of the tympanum and to the large light spots on the 
flanks. We must add, however, that our specimens agree in the other 
characters given for this species. 1096-1099. 
R. PULCHER, Blgr. (7, p. 467). A series of fifty-four examples mostly 
half and three-quarters grown ; the largest specimen measures 33 mm. 
from snout to vent. This species is arboreal in habits. 
The tympanum in this series is usually about half the diameter of the 
eye, but it may be not more than one-third. The ti bio-tarsal joint of the 
ad pressed hind limb reaches as far as the eye and in several specimens as 
