On a new Species of Lizard. 257 only ; b, echinating spicule, spinous ; c, equianchorate flesh-spicule, navicular, much bent upon itself. Fig. 44. Reniera Jihulata, Schmidt : a, skeleton-spicule of one kind only ; h, flesh-spicule, bihamate. Fig. 45. Cliona abyssorum, skeleton-spicules of two forms : a, large, pin-like ; b, smaller, acerate ; c, flesh-spicule, spiro-sinuous. See more magnified view of the latter in iig. 33, PI. XIV. Fig. 46. Oiimmina Wallichii : a, central canal ; b, rows of tubercles ; c, more magnified view of tubercle. N.B. In the upper half, for colivenience, the tubercles are omitted. Fig. 47. Forcepia colonensis. Scale l-12th to 1-GOOOtli inch. N.B. On one side the spines are partly omitted for conveni-ence. This figure is intended for comparison with fig. 32, a, PI. XrV. ; but it should be remembered that it is drawn to a much larger scale, not being half so long as fig. 32 in reality, although stouter and more markedly spined. Fig, 48. Corticium Kittonii : a, three-branched form ; h, four-branched (here the spines are again omitted for convenience) j c, two-branched form. XXXII. — Description of a neio Species of Lizard of the Genus Celestus. By A. W. E. O'Shaughnessy, Assistant in the Natural-History Departments of the British Museum. Body slender, elongate, rounded ; limbs short, the anterior not reaching to the eye, the posterior not quite to the middle of the side. Ear very small, almost closed. Head obtuse ; muzzle rounded, shorter than the interorbital width of the head. Supranasals two pairs ; internasal large, broad ; frontal broad, oblong; small interparietal, smaller fronto-parietals, large parietals, and small occipital. A small scale or two scales wedged in between parietals and supraorbitals. Five supra-orbitals, the fifth triangular, entirely on the flattened upper surface of the head and abutting on the internasal. Two narrow plates, one elongate, coming forward from the line of the supraoculars, are wedged in between the fifth supraorbital and internasal and the several postnasal or lateral plates, of which there are two postnasals proper, one over the other, and two consecutive loreals. Rostral very short and very wide. Supralabials eight. Teeth conspicuously bilobate. Scales in forty-one longitudinal series, twelve-to-fourteen-keeled, without prominent central keel ; eighty-six scales in the median ventral series ; the prcanal scales much larger, in three rows, about twelve. All the scales rounded. Tail much longer than body and head. Ann. (& Mag. N. Hist. Ser. 4. Vol. xiv. 18