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



the NummuUtes papyracea of Bouh^e, 1832 = OrhitoUtes 

 Pratii of Michelin, 1846 {ib. p. 334)= Lycophrys dispan- 

 sus of Sowerby, 1837 (see Carpenter's ' Introduction,' 

 p. 298), and therefore my OrhitoUtes dispansa oi 1853 (Journ. 

 Bombay Asiatic Society, vol. v. p. 136) — that is, the 

 Alabama fossil, whose structural type is depicted in the 

 " Parisien " species Orhitoides media on the page preceding 

 D'Orbigny's diagnosis : and Orhitoides dispansa^ previously 

 called Lycophrys dispansus by Sowerby, whose structure, 

 which is totally diiferent, was depicted ten years previously 

 in the illustrations to Captain Grant's Memoir on the 

 Geology of Cutch, published in 1837 in the Transactions 

 of the Geological Society of London (vol. v. p. 289, pi. xviii. 

 figs. 16, 16 a, and 16 5). 



In 1861 my paper on the " Foraminifera of Sind, with 

 Observations on their Internal Structure, '^ was republished, 

 with additions, in the Ann. & Mag. Nat. Hist, for that year 

 (vol. viii. p. 309), and at page 328 the genus Orhitoides is 

 thus alluded to : — 



" Orhitoides J d'Orb. 



" In this family two distinct genera have been included, 

 viz. Orhitoides dispansa and Orhitoides Mantelli, D'Orb. 

 [OrhitoUtes ManteUi, Cart,), as will be seen by their descrip- 

 tions hereafter under their respective heads. Moreover, it 

 will also be seen there that they are so different that they can 

 hardly be included even in the same family : at least, while the 

 former is closely allied to Gycloclypeus^ Carp., the latter is so 

 closely allied to OrhitoUtes that I proposed the name of * Orhi- 

 toUtes MantelU ' for it, instead of * Orhitoides.^ " 



Following this is a detailed description of Orhitoides dis- 

 pansa and of OrhitoUtes MantelU respectively, whose differ- 

 ences, to make them more clear, are delineated in plate 

 xvi. of the illustrations, in two columns side by side, which 

 thus occupy the whole of the plate, together with separate and 

 still more detailed descriptions of them at pp. 446 and 452 

 respectively of the same volume, wherein again their distinc- 

 tive characters are repeated. 



Dr. Carpenter has stated at p. 302 {op. cit.) that : — " In 

 both forms of Orhitoides^ and not (as stated by Mr. Carter) 

 in 0. Fortisii \_-= Orhitoides dispansa] , we often find the 

 superficial layers traversed by columns of non-tubular sub- 

 stance, which are of a conical form " (Dr. Carpenter's name 

 for " Discolithus IV. a of Fortis " appears to be Oi-hitoides 

 Fortisii = Lycophys dispansus = my Orhitoides dispansaj 

 ' Introduction/ p. 298). 



