REPORT ON THE FORAMINIFERA. 
571 
The species is best known as a Tertiary fossil, being a common constituent of the 
Septaria-clays of various parts of Germany. 
Polymorphina myristiformis, Williamson (PI. LXXIII. figs. 9, 10). 
Polymorphina ( Globulina ) sulcata, d’Orbigny, 1826, Ann. Sci. Nat., vol. vii. p. 266, No. 21. 
Name only [fide Fischer]. 
Pohjmorphina myristiformis, Williamson, 1858, Rec. For. Gt. Er., p. 73, pi. vi. figs. 156, 157. 
„ „ Brady, Parker, and Jones, 1870, Trans. Linn. Soc. Lond., vol. xxvii. 
p. 240, pi. xli. fig. 30, a.c. 
„ „ Fischer, 1870, Actes Soc. Linn. Bordeaux, vol. xxvii. p. 391, 
No. 26. 
This pretty, bright, little shell resembles Polymorphina gibba in general contour, but 
it is decorated externally with lines of tubercles or with irregular and interrupted costae. 
In exceptional cases the costas are almost continuous and the general aspect of the test 
approaches that of Lagena sulcata ; but it is easily distinguished by its gibbous outline 
and radiate aperture, even when the septation happens to be obscured by abnormally 
thick walls. 
Polymorphina myristiformis is not uncommon in the British seas, at depths of more 
than 30 fathoms, and it is found also on the shores of Belgium and France. Its 
occurrence has been recorded at one Station in the North Atlantic, south of Roekall 
Bank, at a depth of 630 fathoms. 
Fossil specimens of this species have been obtained from the Barton Beds (Lower 
Tertiary) of the Isle of Wight, and the Miocene of Pont-de-Yoy, France ; and Mr. Wright 
notes its occurrence in the sub-recent estuarine clays of the north-east of Ireland. 
Polymorphina regina, Brady, Parker, and Jones (PI. LXXIII. figs. 11-13). 
Polymorphina regina, Brady, Parker, and Jones, 1870, Trans. Linn. Soc. Lond., vol. xxvii. p. 
241, pi. xli. fig. 32, a.h. 
In the form and disposition of the segments, as well as in general contour, this species 
resembles Polymorphina problema and Polymorjohina oblonga, but it is distinguished 
from its congeners by the superficial ornament of regular, closely-set, longitudinal 
costae. 
The distribution of Polymorphina regina appears to be limited to comparatively shallow 
water in the neighbourhood of the islands of the Pacific. The following are the points 
at which it has been observed : — Port Jackson, 6 fathoms, Sydney Heads, and Port 
Stephens, all in New South Wales; Curtis Strait, Queensland; Bass Strait, 38 fathoms; 
Storm Bay, Tasmania; Torres Strait, 155 fathoms; off Ki Islands, 129 fathoms; off 
Admiralty Islands, 17 fathoms; and off Honolulu, Sandwich Islands, 40 fathoms. 
Under the name Polymorphina semicostata (Mittheil. naturw. Vereine v. Neu-Vorpom. 
