THE ANNALS 



AND 



MAGAZINE OF NATURAL HISTORY. 



[SECOND SERIES.] 

 No. 63. MARCH 1853. 



XIV. — Descriptions of some of the larger Forms of Fossilized 

 Foraminifera in Scinde ; with Observations on their Internal 

 Structure. By H. J. Carter^ Esq., Assistant Surgeon, Bombay 

 Establishment. 



[With a Plate.] 



Through the kindness of several officers of the Bombay Army, 

 access to the Museum of the Bombay Branch of the Royal 

 Asiatic Society, and my own experience in Scinde, I have be- 

 come acquainted with many, if not most, of the larger forms of 

 fossilized Foraminifera of that country ; and as descriptions of 

 them may prove acceptable to those engaged in the study of geo- 

 logy in Scinde and elsewhere, I have much pleasure in offering 

 them to the public through the medium of this valuable Journal. 



I wish it had been in my power to point out the particular 

 parts of the Nummulitic Series in which they are found, but as 

 we are perfectly ignorant of all detail of this kind respecting 

 Scinde, it must be left for future opportunity to develope. 



In the description of these Foraminifera, I shall not confine 

 myself to their external characters alone, for generally speaking 

 this would be useless, but having studied them by sections, shall 

 also allude to their internal structure, which, though already 

 given most faithfully by Dr. Carpenter (Quart. Journ. Geol. Soc, 

 vol. vi. p. 21), yet there are some parts still incomplete which 

 I shall endeavour to supply, and some observations which can 

 only be made intelligible when the forms of Operculina, Assi- 

 lina, Nummulina, Alveolina, Orbitoides, and Orbitolites are con- 

 sidered together and described successively. 



The distinguishing characters of these genera, familiar, at least 

 in name, to all who are acquainted with the classification of 

 Foraminifera in D'Orbigny's * Foraminiferes fossiles du Bassin 

 Tertiaire de Vienne,' and in his ' Cours elementaire de Paleon- 



Ann.i; Mag. N. Hist. Ser.2. Vol.xi. 11 



