344 Mr. H. J. Carter on a Large Variety of 



not discover even a trace of any olher foraminiferal test 

 beyond those mentioned ; this is the opposite to those from 

 Upper Sind, which are in the midst of a mass of middle-sized 

 Nummulites. 



Log. Village of Peitating (? Pinthaling), on the western 

 bank of the river Irrawadi, about 36 miles above Prome, or 

 6 miles below Thayetmyo, in the Province of Pegu, Burma. 



Ohs. Of the stratum from which the two hand-specimens 

 above mentioned were obtained, Mr. W. Theobald (who sub- 

 mitted them to me for examination and after whom the 

 variety of Orhitolites MantelU contained in them has been 

 named) states, in his published " Report on the Geology of 

 Pegu " (Memoirs of the Geological Survey of India, vol. x. 

 p. 87) , as follows : — 



'' Except in the Kama shale, Foraminifera are scarce 

 throughout the beds of this group. A single specimen of an 

 Orbitolite was found in the Cythereamensis bed, opposite 

 Prome, which, when perfect, might have been the size of a 

 shilling, but with a thickness no greater than cardboard. A 

 careful search, however, failed to discover a second specimen. 

 Another species of Orbitolite forms the characteristic fossil in 

 a hardish sandstone on the banks of the Irrawadi, a little 

 above the Lime Hill ; but unfortunately the position of the 

 bed is not very clear, neither does the fossil occur anywhere 

 else that I know of. A perfect specimen must have mea- 

 sured five or six inches across, with a thickness of not more 

 than the tenth of an inch, and these organisms are, in parts 

 of the rock, packed together so closely that the section of 

 them on the surface suggests the idea of a cross-cut through a 

 bundle of little pancakes." 



As regards the largest size that this fossil may attain, it will 

 be observed that Mr. Theobald's measurements much exceed 

 my own in horizontal diameter, that is " across ; " but then it 

 should be remembered that mine were taken from the largest 

 specimen exposed in the " hand-specimens," while Mr. Theo- 

 bald's were made on the spot, that is, where the stratum 

 charged with them in the bank of the Irrawadi existed ; at the 

 same time my own measurement in horizontal diameter exceeds 

 that of any discoid species of Foraminifera on record. And 

 as regards the geological position of the stratum, I must refer 

 the reader to that part of Mr. Theobald's report bearing upon 

 the subject, merely observing that the " Lime Hill " (so 

 called from the lime-kilns supplying Thayetmyo being situated 

 on it) to which he again alludes fufther on, at p. 92, &c,, 

 consists of " a mass of nummulitic strata, forced up through 

 the newer Tertiaries, and forming a conspicuous landmark 



