460 Mr. H. J. Carter on the Fossil Foraminifera of Scinde, 



3. Orbit olina ? (fig. 8, &c). — Tlic same as the foregoing, 



but with no reticulation on the surface, and the septa indistinctly 

 developed. 



Largest size. — Height ■%■% inch; breadth at the base about 

 the same. 



hoc. Buran River, in Scinde, in limestone charged with 

 Orbitolites pcduncidata, Cart. 



Associate. — Orbitolites pedunculata. 



4. Orbit olina ? (fig. 9, &c). — Of the same shape as the 



last, but the cortical layer consisting of long chambers twisting 

 round the cone, and interdigitating with each other at their 

 commencement and termination. 



Largest size. — Height ~~ inch. 



Loc. South-east coast of Arabia, close to Ras Sajar, in white 

 limestone richly charged with Orbitolites. 

 Associate. — Orbitolites. 



Heterostegina, D'Orb. 



Heterostegina pleuro centralis, n. sp. (?). — Elliptical, thin, flat, 

 wavy. Surfaces presenting a corresponding prominence on each 

 side, situated laterally and towards one end of the ellipse ; 

 covered with minute tubercles, which, becoming larger eccentri- 

 cally, pass off into moniliform rows that, after a subspiral course, 

 terminate on the margin. Internally consisting, except at the 

 prominence, of a single plane of oblong chambers filling up the 

 intervals between the rows of tubercles, with their long axes 

 horizontal and across their subspiral course. Margin inflated, 

 round, smooth. 



Largest size. — Longest diameter f inch. 



Loc. Village of Takah, on the south-east coast of Arabia, in 

 white limestone. 



Associates. — Cycloclypeus and Orbitolites Mantelli. 



Obs. — This and Orbitolites Mantelli are very numerous to- 

 gether in the white limestone at the place mentioned. Although 

 smaller, it differs so little from the species found at Malta, that 

 I think they should be regarded as the same. 



Note. — Misled by the figure of Lamarck's Orbicvlina adunca 

 (Encyclop. Method, tab. 468), I called this fossil " Orbiculina 

 pleurocentralis" (Gcol. Papers on West India) ; but on receiving 

 Dr. Carpenter's kind present of a copy of his second valuable 

 Memoir on the Foraminifera (Phil. Trans. 1856, p. 547), I saw 

 my mistake, and made the necessary correction (Journ. Bombay 

 Asiat. Soc. vol. v. p. 634). 



I have designated this Foraminifer " plcuroceniralis " here, 

 because I had given this name to it formerly ; but having since 

 obtained some of the fossil Heterostegina from Malta, I find the 



