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Show 418 DR. J. ANDERSON ON A NEW [May 21, a large lingulate pad on the middle of the plantar surface, which is sparsely covered with hair from the heel to the pad. Claws moderately long. Tail short, about half the length of the hind feet. Spines finely striated, the longest about 18 millim. in length and 1 millim. in diameter. The inter-aural spines are not quite so long as the longest body-spines. The apices of the spines are generally yellowish white, passing into a narrow orange-yellow band, which merges into a brown band followed by a broad yellowish or white band, the basal ends of the spines being dusky. The face anterior to the eyes, and the chin, are nearly nude, the skin of these parts having a livid hue and sparsely covered with minute dusky hairs, those along the margin of lips being whitish. The ears also are nearly nude, of a livid hue, and are only sparsely clad with short hairs. Tbe fore and hind limbs are thinly clothed with brownish and yellowish hairs. The lower part of the belly and the area behind it are covered with brownish fur. The head behind the livid snout and chin, the sides of the body below the spines, the throat, chest, and upper part of the abdomen are all yellowish white. millim. Snout to vent 122-0 Vent to tip of tail 14*5 External meatus to snout 41*0 Snout to eye 21-5 Height of ear 24-0 Length of fore foot 18*0 „ of hind foot 28-5 „ of pollex 2-5 „ of hallux 1*6 The skull of E. sclateri is much smaller than that of E. frontalis, Smith, the only species, next to E. algirus, with which it can be compared, but it is more closely allied to the former than to the latter. The difference in size between the skull of the British Museum specimen of E. frontalis, Smith (E. diadematus, Dobson, but not of Fitzinger), which is a male, and that of E. sclateri, which is a female, is greater than mere sexual dissimilarity would account for. It should be viewed in connection with the differences that exist between the two animals when their external characters are studied, and which are such that I have had no course left me but to regard them as specifically distinct. Iu E. frontalis the spines between the ears instead of being rather shorter than the body-spines, as in E. sclateri, are decidedly longer and form an emiuence between the ears. It has only a single large pad below the wrist, whilst in E. sclateri there are two placed side by side. The hind foot of E. frontalis has an acutely pointed, well-developed, nipple-like tubercle, opposite to the hallux, whereas in E. sclateri there is a broadish flat lingulate pad in a similar position. The ears also of E. frontalis are |