104 Jones— Orbitoides of Maita and West Indies. 
Morton sp.; and, secondly, it is the exact counterpart of the 
Orbitoides that 1 have lately observed in some specimens of 
limestone brought by Captain Hutton from Malta (see ‘ Geo- 
logist,’ vol. vii. p. 134; where by mistake I referred this 
Maltese Orbitoides to O. dispansus). 'The Orbitoides occurs (as 
Dr. A. Leith Adams and Captain Hutton have informed me) 
along the northern coast of Malta and Gozo, in the uppermost 
part of the hard white limestone (the lowest great stratum of 
the Maltese series), with Scutella subrotunda and Heterostegine.* 
In the next great stratum above this white limestone, namely, 
the ‘ Freestone,’ occur numerous Foraminifera, exactly equiva- 
lent in every respect to many of those from the Vienna Basin 
(especially from the Baden beds), figured by D’Orbigny in his 
©‘ Foram. Foss. Bass. Tert. Vienne,’ 1846. 
The close likeness, as individuals, in the Maltese and An- 
tiguan Orbitoides, and in the large Foraminifera of the Maltese 
Freestone and the Baden ( Vienna) beds, is remarkable; and 
this is the more striking, as it is difficult to find any two sets 
(faunal groups) of Foraminifera agreeing in more than a simi- 
larity of facies. 
In the nodular Orbitoidal Limestone of Jamaica,t at the 
base of the White Limestone, which, according to Mr. G. P. 
Wall, is probably unconformable to the shales containing these 
calcareous nodules, I find a few rather small specimens of the 
same variety of O. Mantelli as that so abundant in the Anti- 
guan flint, mixed with numerous biconvex forms, referable 
probably to O. dispansus or O. Fortisit. 
In a piece of grey flintt (less calcareous than that from 
Antigua), from the base of the White Limestone at St. Thomas, 
Jamaica, I find numerous Orbitoides, mostly O. Mantelli, though 
some may be O. dispansus, as in the Antiguan flint. 
I may also notice here a piece of hard yellowish limestone 
from the base of the White Limestone at Clarendon, Jamaica,§ 
* In the ‘ Geologist,’ vol. vii. p.134, I stated that Operculine occur in the 
Maltese limestone containing Orbitoides; but the majority of what I there referred 
to as two sub-varieties of Operculina complanata, Defrance sp., are certainly 
Hleterostegine ; and those in another hand-specimen, not now in my possession, 
may also prove to be Heterostcgine. I have lately seen fine specimens of Hetero- 
stegina-limestone from Crete, in Capt. Spratt’s collection. | ‘ 
Y The subject of a Note communicated to the Geological Society last year; but 
at that time I had not recognized the presence of O. Mantelli in this limestone. 
See Quart. Journ. Geol. Soc., vol. xix. p. 514. 
{ Presented to the Geological Society by Mr. Thomas Bland, F.G.S. 
§ Other Tertiary specimens from Jamaica, lately submitted to me by Mr. G. P. 
Wall, are:—Orbitoidal limestone, Hopewell, Metcalfe ; Flint with Orditoides and 
Nummuline, Orange River, Metcalfe; Limestone with Operculine and Nummu- 
line, and the same semi-silicified, Brimmer Hall, St. Mary; Flint with Operculine 
and Nummuline, Preston, St. Mary ; Orbitoidal limestone, Carron Hall, St. Mary ; 
