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Show 1887.] BATRACHIANS FROM THE LOO CHOO ISLANDS. 147 6- 2- millim. millim. Total length., 292 215 Head 24 18 Width of head 15 12 Body 58 50 Fore limb 38 33 Hind limb 65 52 Tibia 20 16 Tail 210 147 The species is represented by numerous specimens in Mr. Pryer's collection. 4. TACHYDROMUS SMARAGDINUS, sp. n. (Plate XVII. fig. 2, and Plate XVIII. fig. ].) Head long as in T. sexlineatus, its width being contained nearly twice in its length. A series of granules, usually incomplete, between the supraoculars and the supraciliaries ; a small shield usually (19 cases out of 26) separates the large anterior supraocular from the loreal; temporal scales obtusely keeled, much smaller than in the other species, 10 to 15 on aline between the orbit and the tympanum. Dorsal shields strongly keeled, in eight to ten longitudinal series, the three outer series on each side largest and equal; eight longitudinal series of large, strongly keeled, mucronate ventrals, and three or four series of smaller ones on each side. Prseanal shield usually longitudinally divided in the female, entire in the male. One inguinal pore on each side. Emerald-green above; a pale yellow streak along each side, from the upper lip to the groin; males usually with a broad grey or bronzy lateral band above the yellow streak ; lower surfaces greenish yellow. rf- ?• millim. millim. Total length 187 207 Head 12 13 Width of head 6-5 7 Body 38 42 Fore limb 20 20 Hind limb 27 27 Tail 137 152 Numerous specimens. 5. LYGOSOMA PELLOPLEURUM, Hallow. (Plate XVIII. fig. 2.) Lygosaurus pellopleurus, Hallow. I. c. p. 496. Body elongate, limbs short; the distance between the end of the snout and the fore limb is contained twice in the distance between axilla and groin. Snout very short, obtusely acuminate. Lower eyelid scaly. Nostril pierced in a single nasal ; no supranasal; frontonasal broader than long, forming a broad suture with the 10* |