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Show 1900.] BATRACHIANS AND REPTILES OF THE GABOON. 437 close resemblance and are no doubt functionally analogous with the subdigital lamellae of the scansorial Geckos. Such a structure had not been observed before in any Batrachian. Buchholz and Peters have not alluded to it otherwise than by mentioning " dunkle Querlinien unter den Zehen," which I believe to be the result of an optical delusion caused by the lamellae to which attention is now drawn. The male, which is devoid of vocal sacs, measures only 17 millim. from snout to vent; the female measures 21. BANIDJE. 11. B A N A CRASSIPES Ptrs. This species is known from Camaroons and the Gaboon. I have examined 10 specimens collected by Mr. Bates on the Benito Biver, the largest measuring 63 millim. from snout to vent. As pointed out by Giinther (Ann. & Mag. N . H . [6] xvii. 1896, p. 266), the vomerine teeth are sometimes absent; this is the case in three of M r . Bates's specimens. W h e n present, they form two very small groups just behind the level of the choanae. The tympanum is more or less distinct, measuring three-fourths or fourth-fifths the diameter of the eye. The colour of the upper parts varies from greyish olive or purplish brown to blackish, with or without very indistinct darker and lighter spots or marblings ; dark cross-bars on limbs usually irregular, sometimes absent; lower parts white, throat often spotted or marbled with dark brown. 12. BANA SUBSIGILLATA A. Dum. This species, which has been well figured by A. Dumeril, is known from Old Calabar, Camaroons, and the Gaboon. Several specimens were collected by Mr. Bates on the Benito Biver, the largest measuring 88 millim. from snout to vent. Tbe species is remarkable for its long head without canthi rostrales, and its short limbs, the tibio-tarsal articulation reaching the tympanum ; the diameter of the latter is two-thirds to three-fourths that of the eye. The upper parts are of a dark brown, but the sides of the head and body and the fore limbs are often tinged with bright carmine. The lower parts, in the young, are olive, with close-set round pale yellow spots on the throat and belly; with age, the dark colour between the spots becomes reduced to a network, which may even almost entirely disappear. Some specimens have a rather indistinct flat round gland under each thio-h, as in most species of the genus 3Iantidactylus. 13. BANA ^QUIPLICATA Werner. Rana mascareniensis, var. cequiplicata, Werner, Verh. z.-b. Ges. Wien, xlviii. 1898, p. 192. Vomerine teeth in two short oblique series commencing from the inner front edges of the choanae. Head moderate, as long as broad or a little longer than broad; snout pointed, longer than the |
