1881.] 0. Feistmantel — Sketch of the history of the Gondwana fossils. 123 



able for the length of its tails, which are quite twice as long as those o£ 

 D. egeon, Doubl. Hew., which species has them the next longest of the 

 genus. It will be figured in the forthcoming work on * The Butterflies 

 of India, Burmah and Ceylon,' by Captain Marshall and myself. 



3. Sketch of the history of the fossils of the Indian Gondwana system. — By 

 0. Feistmantel, M. D., Palceontologist, Geological Survey of India. 



(Abstract.) 



The fossils of the Indian Gondwana system, the most important series 

 of sedimentary rocks in Peninsular India, have been now under examination 

 for several years, and various memoirs have been published containing 

 descriptions and illustrations of the vegetable and animal remains of this 

 important rock-system. These fossils have been, however, hitherto treated 

 of in a stratigraphical order only, according to the groups from which 

 they were procured. A general review of the fossils in a biological 

 order was hitherto wanting, and as only lately Mr. R. Lydekker gave a 

 sketch of the history of the fossil Vertebrata in India in the Journal of the 

 Asiatic Society of Bengal, the author thought it would prove of some use to 

 write a similar sketch of the Gondwana fossils for publication in the same 

 Journal. 



A general review of the literature referring to Gondwana fossils is 

 given, also a review of the various groups of the system with regard to 

 the occurrence of fossils in them ; then follows the enumeration of the 

 fossils (vegetable and animal) in a systematical (biological) order, with 

 indication of their geological and geographical distribution, and a few 

 general remarks on the peculiarities of the fossils of this system conclude 

 the paper. 



This paper will be published in full in the Journal, Pt. II, No. 3, 

 for 1881. 



4. New and little known Mollusca belonging to the Indo- Ma I ay an Fauna. — 

 By Geoffeey Nevill, C. M. Z. S. 



(Abstract.) 



This paper contains complete descriptions of certain species of Mol- 

 lusca which were only briefly described in the author's ' Hand-list.' 



The plates include figures of most of the shells previously described 

 by Mr. Nevill, but of which no illustrations have hitherto been published : 

 thus one of the plates represents the brackish- water shells described in 

 the Journal, Pt. II, No. 3, 1880. 



In addition to the above there are descriptions of many new and 

 important species lately discovered by Surgeon-Major R. Hungerford at 



