466 
THE VOYAGE OE H.M.S. CHALLENGER. 
The distribution naturally follows that of Lagena Icevis and Lagencc sulcata, and 
wherever the types abound the intermediate forms may be expected. 
Lagena multicosta, Karrer, sp. (PI. LX I. fig. 4). 
Fissurina multicosta Karrer, 1877, Geol. K. F.-J. Wasserleitung, p. 379, pi. xvi. b, fig. 20. 
„ bouei, Id. Ibid. p. 378, pi. xvi. b, fig. 19. 
Karrer has figured ( loc . cit.) two Lagence, the characters of which do not differ from 
each other to a greater degree than is common amongst individuals of the same variety, 
especially in cases where the deviation from the typical features is only slight. 
The figures in question represent nearly globular shells with a surface-ornament of 
raised costae extending from the base to near the middle of the test, and then thinning 
out so as to leave the upper portion smooth. In one of the shells the costae are 
numerous and some of them bifurcated ; in the other they are fewer in number and are all 
in the normal unbranched condition. Such specimens are often more or less compressed 
bilaterally, and the aperture is correspondingly elongated, so that they may be supposed 
to exemplify the fissurine condition of Lagena semistriata. 
The figured recent specimen is from Station 346, South Atlantic, a little south of the 
equator, 2350 fathoms. 
Those depicted in the original drawings were from the Miocene of the Vienna 
Basin. 
Lagena stelligera, H. B. Brady (PI. LVII. figs. 35, 36). 
Lagena stelligera, Brady, 1881, Quart. Journ. Micr. Sci., vol. xxi., N. S., p. 60. 
Shell pyriform, ento- or ecto-solenian ; with a deep, vertical, circular rim or collar at 
the base, about-one third the diameter of the shell, and a number of short ribs (eight to 
twelve) radiating from it. Surface otherwise smooth. Length, -^jth inch (0*5 mm.), or 
less. 
The shell of Lagena stelligera may easily pass unnoticed, owing to its resemblance to 
the final segment of a Nodosarian, and the similarity is often increased by its assuming a 
somewhat inequilateral contour. The base, however is always imperforate, and the 
aperture very frequently 'entosolenian. The circular rim varies considerably in depth, 
and the costse are sometimes little more than bridges fitting the angle between it and the 
rounded base, though in other cases they extend to nearly one-third the height of the test. 
In rare instances, they are entirely wanting. 
Lagena stelligera is a deep-water Foraminifer. It has been met with altogether at 
fourteen localities, embracing Stations in both the North and South Atlantic, the North 
and South Pacific, and the Southern Ocean. In eight of these the depths range between 
