. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. Dr. J. E. Gray on the Amphisbcenians. 375 The head-shields in both these specimens are exactly alike, the central crown-shield being much broader than long; the hinder pair of frontal shields rather shorter than the front pair, and narrower on the central edge by the angular front edge of the crown-shield ; the two pairs of occipital shields are shorter tban broad, the hinder pair being the smaller, and in one instance coalesced on one side with the plate of the front pair. Th
. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. Dr. J. E. Gray on the Amphisbcenians. 375 The head-shields in both these specimens are exactly alike, the central crown-shield being much broader than long; the hinder pair of frontal shields rather shorter than the front pair, and narrower on the central edge by the angular front edge of the crown-shield ; the two pairs of occipital shields are shorter tban broad, the hinder pair being the smaller, and in one instance coalesced on one side with the plate of the front pair. They all have a brown spot on the centre of each of the dorsal scutella. ** Sternal plates all separate, symmetrical. Sphenocephalus. 2. Lepidosternon Grayii, A. Smith, MS. Brit. Mus. Head rather short, broad; the vertebral plate hexagonal, elon- gate, as long as broad; the frontal plate very short and broad ; the parietal shields oblique ; the occipital much longer than broad; temporal shields larger on the side of the occipital; plates of the sternal disk symmetrical, in oblique diverging lines. Hub. South America? (Brit. Mus.). Sternal disk formed of four diverging lines of uniform, similar- sized, symmetrical shields; the shields on the central line smaller, being divided down the centre by a straight suture. In 1848, Dr. (now Sir Andrew) Smith sent to the British Museum this specimen, with the name of Lepidosternon Grayii, informing me that he had described (or intended to describe) it in the ' Proceedings of the Zoological Society' under that name. I cannot find that it has been so described, nor can I find any notice of it in any other work, though it is very like, but evidently distinct from, the Lepido- sternon phoccena of Dumeril and Bibron, figured by M. d'Orbigny (Voy. Amer. Merid.). Fig. G. Fig. Lepidosternon Grayii. 3. Lepidosternon , Dum. et Bibr. Erp. Gen. v. 507 ; Gray, Cat. Tortoises, &c, B; M. 73 ; D'Orbigny, Voy. Amer. Merid. Rept. t. 6. f. 7-1
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