REPORT ON THE FORAMINIFERA. 
671 
the North Pacific, — off Honolulu Reefs, 40 fathoms : and the remaining ten to the 
islands of the South Pacific, 2 fathoms to 155 fathoms. 
Anomalina, d’Orbigny. 
Anomalina, d’Orbigny [1826], Bronn, Minister, Roemer, Reuss, Costa, Parker and Jones, Egger, 
Carpenter, Karrer, Seguenza, Brady, M. Sars, Scklicht, Siddall, Martonfi. 
Planulina, d’Orbigny [1826], Bronn, Minister, Roemer, Reuss, Norman. 
Rotalina , pars, d’Orbigny [1839], 
. Rosalina, pars, Reuss [1845], Stacbe. 
Rot alia, pars, Reuss [1855], Stacbe, Giimbel. 
Nonionina , pars, Reuss [1861]. 
Discorbina, pars, Reuss [1865], Seguenza. 
Planorbulina , pars, Parker, Jones, and Brady [1865], Reuss, Wright. 
Truncatulina, pars, Giimbel [1868], Hantken. 
It is a debatable point whether much is gained in the long run by the retention of 
the term Anomalina for a small section of the Planorbulince. It was originally applied 
by d’Orbigny to two very different species of Foraminifera, one of which, Anomalina 
jpunctulata / is a nearly equilateral, compressed, subnautiloid Planorbulina, umbonate at 
the inferior umbilicus ; whilst the other, Anomalina elegans , 2 is a depressed plano-convex 
modification of Discorbina, with a sunken umbilicus. 
In the “ Vienna Basin ” monograph, by the same author, four new species were intro- 
duced, all of which belong to the Planorbuline series. Of these, Anomalina variolata is 
obviously nothing more than the common Truncatulina lobatula, whilst the remaining 
three perhaps belong to Anomalina proper. 
Parker and Jones (Phil. Trans., vol. civ. p. 383) state “ the term Anomalina is not 
really wanted, however convenient it may be as a term for the subsymmetrical or some- 
what biconvex arrested Planorbulince,” and they subsequently direct attention to “ the 
evident passage-forms from the plano-convex to the biconcave condition of the shell ” as 
exemplified in Anomalina coronata. 
Von Reuss, in his farewell contribution to the history of the Foraminifera, gives his 
views on the subject in a short paragraph, of which the following is a free version. “ In 
the Anomalince the distinction between the spiral [superior] and the convex or umbilical 
side disappears to a greater or less extent. The nearly equilateral test assumes an 
apparently nautiloid character, the two sides presenting umbilical depressions of different 
width and depth. The aperture does not appear on the lateral surfaces, but is situated 
on the septal face of the chambers, though always nearer the flatter [superior] side. 
These forms pass through numerous gradual modifications into the typical Truncatulina, 
so that it is impossible to limit them sharply. The association of Planorbulina, Trun- 
1 Ann. Sci. Nat., 1826, vol. vii. p. 282, No. 1, pi. xv. figs. 1-3. 
2 Ibid., p. 282, No. 4 Mocltle, No. 42. 
