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Show 64 ON THE TOADS OF THE GENUS NECTOPHRYNE. of the body. A dark streak from the end of the snout passing below the can thus rostralis, through the eye, and above the tympanum to the commissure of the mouth. Loreal region brown ; a light spot below the eye between yellowish-brown parts of the upper lip. Limbs brownish in colour, with darker markings arranged in indistinct large cross bars. Sides of the body below the dark lateral band lighter than the back, more or less speckled with dark brown. Sometimes a yellowish-brown vertebral stripe extending along the middle of the back, from snout to vent. Beneath entirely white or with a few small dark spots on the throat and belly. Hob. Ukami, German East Africa. 2 specimens. Dimensions.-From snout to vent, 27 m m . ; hind limb, 38 ; fore limb, 20; length of head, 9 ; breadth of head, 9'5. Named after m y colleague, Dr. Tornier of Berlin, who has added much to our knowledge of the herpetological fauna of German East Africa. The figured specimen of this new species is preserved in the herpetological collection of the Basle Museum, the other has been presented to the British Museum. If we now consider the geographical distribution of the genus, we notice that most of the species described are from Southern Asia. Borneo is particularly rich. Not less than six species have been found on this island, and one of them has been found also in the Natuna Archipelago (Sirhassen) and Singapore. New discoveries will most likely further extend the geographical distribution of the other species. But we cannot omit to state the fact that up to this date no Nectophryne has been discovered, so far as we know, in the other great islands of the Sunda Archipelago. The genus Nectophryne has representatives also in West Africa. The faunal similarity of that district with the south-east of Asia has often been noticed (see Wallace). West Africa possesses two species, and the new species described above shows that the genus is also represented in the eastern part of the African continent. I conclude wTith a synoptic table for the determination of the known species of Nectophryne, not taking into consideration doubtful species, as e. g. Nectophryne sundana (Ptrs.) (Boulenger, Cat. Batr. Sal. p. 281). I have not been able to examine the only existing specimen of this species, which is preserved in the Berlin Museum and comes from Borneo. Key for the determination of the Species. I. Fingers strongly webbed, very slightly dilated at the end, the inner quite rudimentary. a. Subarticular tubercles present, similar to small lamellae ... _ZV. afra. b. Subarticular tubercles absent N. misera. II. Fingers partially webbed, more or less dilated at the end, the inner well developed. A. Tibio-tarsal articulation not reaching the end of the snout. a. Toes only half-webbed _^r tomieri |