REPOET ON THE FORAMINIFERA. 
471 
Lagenci squamosa, Montagu, sp. (PI. LYIII. figs. 28-31). 
“ Polymorpha Sphaerulse siphunculalce ,” Soldani, 1791, Testacecgraphia, vol. i. pt. 2, p. 116, 
pL cxix. figs. P. Q. ; pi. cxx. figs. cc. ee, fyc. 
Vermiculum squamosum, Montagu, 1803, Test-. Brit., p. 526, p]. xiv. fig. 2. 
Lagenula reticulata, Macgillivray, 1843, Moll. Anim. Aberd., p. 38. 
Entosolenia squamosa, Williamson, 1848, Ann. and Mag. Nat. Hist., ser. 2, vol. i. pi. ii. fig. 19. 
„ glohosa, var. squamosa, Parker and Jones, 1857, Ann. and Mag. Nat. Hist., ser. 2, 
vol. xix. p. 278, pi. xi. fig. 25. 
„ squamosa, Williamson, 1858, Eec. Eor. Gt. Br., p. 12, pi. i. fig. 29. 
Lagena reticulata, Reuss, 1862, Sitzungsb. d. k. Ak. Wiss. Wien, vol. xliv. p. 333, pi. v. fms. 
67, 68. 
Phialina ornata, Seguenza, 1862, Foram. Monotal. Mess., p. 48, pi. i. fig. 30. 
Lagena anomala, Stache, 1865, Novara-Exped., geol. Theil, vol. i. pt. 2, p. 183, pi, xxii. fig. 5. 
„ squamosa, Jones, Parker, and Brady, 1866, Monogr. Foram. Crag, p. 39, pi. iv. fig. 7. 
Lagena squamosa may be taken as the type of a considerable section of the genus, 
characterised by the linear reticulation, in one form or other, of the surface of the test. 
The specific term is aptly applied to the sort of ornament depicted in Montagu’s original 
figure which resembles nothing so much as the arrangement of the scales on the skin of 
a fish. The areas corresponding to scales are of equal size and of nearly uniform outline, 
the superior margins being arched, the inferior angular ; but they are not arranged on any 
methodical plan. A specimen with somewhat similar characters is portrayed in PI. 
LYIII. fi g. 28 , but the meshes are disposed in nearly regular vertical lines. 
Sometimes the reticulation is more distinctly geometrical, and the meshes assume the 
form of regular hexagons, such modifications constituting the “ var. liexagona ” of 
Williamson. Another variety results from the formation of longitudinal ribs, with cross- 
bars of equal height and substance, the meshes being small and approximately square or 
somewhat rounded ; this is exemplified in the Lagena melo of d’Orbigny. Sometimes 
the cross-bars are of slighter substance and less elevated than the main ribs, and the test 
resembles that of Lagena sulcata with the addition of thin transverse lines between the 
costae. Specimens so constructed are assigned by Reuss to the Lagena catenulata of 
Williamson ; but Williamson’s figure of that species clearly belongs to Lagena melo, and 
it is a question whether it is worth while attempting to separate the forms referred to 
from the typical, less regularly ornamented, Lagena squamosa. The Lagenula reticulata 
of Macgillivray is described as having “reticulated markings bounding irregular- areolar 
spaces,” and in the absence of any figure, there need be no hesitation in associating it 
with the present species. 
Lagena squamosa is met with in almost every sea, but it is not so abundant as many 
of its congeners. Though found from time to time on deep bottoms, even down to 2300 
fathoms, it manifestly prefers comparatively shallow water, and at a large proportion of the 
known localities the registered depth is less than 100 or 150 fathoms. 
There is no record of its occurrence as a fossil prior to the Eocene of the Paris Basin, 
