174 Reviews — PalcBontohgia Indica. 



of these old Grharials attained to enormous size, judging by the pro- 

 portions of the parts preserved in the Falconer and Cautley Collec- 

 tion in the British Museum (Natural History), Cromwell Road, and 

 in the Geological Survey Museum, Calcutta. Thus, " G. pachyrhyn- 

 chus, from the Lower Siwaliks of Sind, was between two and a half 

 and three times the size of full-grown existing specimens of G. gange- 

 ticus, which attains a total length of twenty feet. If the same pro- 

 portions obtained in this fossil species, its total length would have 

 been from fifty to sixty feet." (p. 21.) 



A portion of a humerus of a Varanas indicates in a similar manner 

 a lizard perhaps twice the size of the largest existing species (F. 

 salvator), which, according to Mr. Theobald, attains a length of nearly 

 seven feet ; so that F. sivalensis, Falconer, may have been as much as 

 from 12 to 14 feet long. 



This Memoir also makes us acquainted with a series of ophidian 

 vertebras referred by the author to Python, and probably identical 

 with the Python molurus, Linn. sp. 



Many of the remains here described and figured were collected 

 thirty years ago or more by the late Sir Proby T. Cautley, and a few 

 have been described already by Dr. Hugh Falconer, F.R.S. 



The fish-remains described embrace teeth of sharks, referred to 

 Carcharias, sp. ; and Carcharodon, sp., from the Siwaliks ; palatal 

 teeth of Rays, Myliobatis, from the Eocene of Kach ; teeth of 

 Sparidce (Cajntodus) ; Ophiocephalidce, cranium of Ophiocephalus, and 

 numerous cranial plates of Siluridce, etc., very like, or identical with 

 living Indian forms. This part also includes the Title-page, Index, 

 and some Introductory Observations to complete Vol. III. of Series 

 X. Some excellent figures of .Mastodon-molars accompany and 

 illustrate the Introductory Chapter, with which, when bound, the 

 volume will commence. 



This great work, carried out under the able administration of the 

 Superintendent of the Geological Survey of India, Mr. Henry B. 

 Medlicott, M.A., F.R.S., has of late years been wholly prepared by 

 Mr. Lydekker, and printed, and illustrated, in England, and has thus 

 had the best possible care and every advantage in its production ; yet, 

 nevertheless, it is sold at a lower price than any similar publication 

 in Europe or America. We wish the publications of the Indian 

 Survey the success they so richly and honourably deserve, and we 

 compliment Mr. Lydekker, the author of the present volume, upon 

 •the completion of this section of his very excellent Indian Mono- 

 graph. 



It is interesting to mention, for the information of English 

 Palaeontologists, that a large number of the type-specimens figured 

 in the volumes of the " Palaeontologia Indica " are to be seen in the 

 cases of the Geological Gallery of the British Museum (Natural 

 History) ; so that this magnificent work is in a measure an illustrated 

 and descriptive catalogue, not only of the Calcutta Museum, but in 

 part also of our own Indian collections at borne. 



