270 PAL.EONTOLOGY. 



Deals with the general structure of the group. The form, com- 

 position, and mode of growth of the skull is first considered, the chief 

 variations being pointed out and discussed. The succeeding sections 

 relate to the Sclerotic Orbital Ring, Teeth, Vertebral Column, Ribs, 

 Shoulder-girdle, Pelvic girdle, Bones of the Limbs, Hyoid, Branchial 

 Arches, Dermal Armour, Nature of Pood, and Mode of Life, Zoological 

 Affinity, and Distribution. The author offers reasons for reconsidering 

 Prof. Owen's views respecting the disproportion of fore and hind limbs 

 in the large Triassic species, and discusses the relation of Labyrintho- 

 donts to the " Stammbiiume " proposed by Haeckel. L. C. M. 



MiALL, L. C. On the Remains of Labyrinthodonta from the Keuper 

 Sandstone of Warwick. Quart. Joum. Geol. Soc. vol. xxx. 

 pp. 417-435, pis. xxvi.-xxviii. 



Remains of Mastodonsaurus and Lahyrinthodon are described and 

 figured. Diadetognaihus varvicensis is proposed as a new genus and 

 .species. Prof. Owen's memoir (Geol. Trans, ser. 2, vol. vi.) is reviewed, 

 and certain determinations of bones criticised. The English Triassic 

 Labyrinthodonts are enumerated as follows — Mastodonsaurus gigan- 

 tens, M. pachj/gnathus, Lahyrintliodon le/ptognatlius^ Diadetognaihus 

 varvicensis. * L. C. M. 



. On the Composition and Structure of the Bony Palate of 



Ctenodus. Quart. Journ. Geol. Soc. vol. xxx. pp. 772-774, plate 

 xlvii. 



. Note on the occurrence of a Labyrinthodont in the Yoredale 



Rocks of "Wensleydale. Quart, Journ. Geol. Soc. vol. xxx. pp. 

 775, 776. 

 Parts of one hind limb and a tibia of the other are described. The 

 remains indicate a large species, such as Loocomma Allmani. 



Milne-Edwakds, Alphonse. Recherches sur la Paune ancienne 

 des lies Mascareignes. [Ancient Pauna of the Mascarene Islands.] 

 Ann, Sci. Nat. ser. 5, Zool. t. xix. pp. 31, with five plates. 



Bones of several birds are described, most of them as new forms. 

 ErythromacJius Leguati, new gen. and sp., is allied to the N. Zealand 

 Apteryx. Ardea megacephala, a large heron, and Strix {Athene) murivora^ 

 a new owl. Bones of a pigeon still living in Madagascar (T. picturatus) 

 are recognized, and of another, Columha rodericana, named as new. A 

 new genus is made for the large perroquet Necropsittacus rodericanus. 

 Of mammals, bats, flying foxes, a pig, &c. are mentioned, but are 

 mostly of species existing in Madagascar. E. B. T. 



NewbePvRT, Prof. J. S. Notes on the genus Conchiopsis. Proc. 

 Ac. Nat. Sci. Philadel. ser. 3, vol. iv. pp. 425, 426. 



. On Castoroides OMoensis. Proc. Lye. Nat. Hist. N. York, 



ser. 2, 1-0. 4, pp. 92, 93. 

 Notice of a great extinct beaver from Post-Tertiary deposits (peat) at 

 Nashport, on the Ohio Canal. 



