REPORT OjST THE FORAMINIFERA. 
635 
spreading. External layer composed of numerous whorls, consisting chiefly of semiannular 
chambers, the sutures of which are marked by interrupted lines of clear shell-substance ; 
chamber-cavities simple, not subdivided into chamberlets. Central portion of the test 
filled with shelly deposit. Diameter, j-^-g-th inch (0‘2 mm.). 
X 200 
b 
Fig. 19. — Patellina campanceformis, n. sp. 
a, Lateral aspect ; b, inferior aspect ; c, vertical section of the test, viewed by transmitted light. 
All magnified 200 diameters. 
The foregoing is an incomplete, and to some extent provisional, description of an 
interesting variety of Patellina, of which only two examples have as yet been met with. 
The specimens are exceedingly minute, and their structure is obscured externally by the 
interrupted limbation or thickening of the septal lines. The chambers are for the most 
part semiannular, but their arrangement is very indistinct, and one or two of the later 
whorls appear to form an unbroken spiral. The species is probably closely allied to the 
Patellina simplex 1 of the Grignon Tertiaries, though it does not entirely accord with 
the characters assigned to that form. 
The specimens which form the subject of the present notice were found by Mr. F. W. 
Millett in dredged material from Station 185, off Raine Island, Torres Strait ; depth, 155 
fathoms. 
Cymbalopora, Hagenow. 
Rotalia, pars, d’Orbigny [1826]. 
Rosalind, pars, d’Orbigny [1839], 
Cymbalopora, Hagenow [1850], Carpenter, Parker and Jones, Brady, Moebius. 
Rotalina, pars, Pourtales [1867]. 
Tretomplialus, Moebius [1880]. 
The distinctive characters of Cymbalopora are easy of recognition. The species by 
which they are exemplified are few in number, but form in some respects almost as 
diversified a series as the more extensive Rotaline genera. 
1 See Parker and Jones, Ann, and May. Nat. Hist., ser. 3, vol. vi. p. 29. 
