1. Introduction .—There is a small collection of Echinoderms, Brachiopods, Pectens, and Zoantharia in the Foreign Museum of the Society which came from Bagh on the Nerbudda. It forms a portion of that assemblage of fossils which enabled Capt. Keatinge to determine the existence of Cretaceous strata in the northwest of the Indian peninsula, and it was presented to the Society by Dr. H. J. Carter, F.R.S. The specimens from the cliffs at Ras Fartak and Ras Sharwên, in South-eastern Arabia, were collected by Dr. Carter, and include Echinoderms, Zoantharia, Foraminifera, and Pectens; they were given to the Society by their distinguished collector in the hope that they would, at some time or another, be examined and named, special reference being made to the Bagh series. Hearing that I was studying the Bagh fossils, Dr. Carter wrote to me to direct my attention to those from S.E. Arabia; for he considers that both the localities are of Neocomian age*, and that they are along the same line of the great fault which, running parallel with the coast-line of S.E. Arabia, reaches the Vindya range on the Nerbudda. 2. Position of the Strata .—The town of Bagh is situated about 22 miles from the Nerbudda, 145 miles from the sea, and about 850 feet above its level. A Bryozoan limestone had long been known to exist in its neighbourhood, and the stones of Mandoo, crowded as they are with fossils, had excited the attention of Drs. Carter and Oldham†. Capt. Keatinge and Mr.