REPORT ON THE FOR AMIN IFER A. 
397 
cylindrical forms, such, as fig. 32, and those of subglobular shape, like figs. 34 or 35, every 
variety is to he found. 
Well-developed specimens of Clavulina cylindrica closely resemble Hajplostiche 
soldanii (PI. XXXII. figs. 12-18), not only in contour but in shell-texture. These two 
species often abound in the same localities, especially amongst the coral-sands of the 
tropics, and very frecprently the orifice furnishes the only external characters by which 
they can be distinguished the one from the other. In the Lituoline test the aperture is 
•either simple or labyrinthic, whilst in perfect specimens of Clavulina cylindrica it is 
always valvular. The longitudinal section of either organism at once reveals its affinity ; 
but the external character referred to is of interest from a morphological point of view, 
and of value as affording a ready means of diagnosis. 
The walls of the test are thick, and in the ovate and rounded forms the septation is 
entirely concealed by their massive development ; but in the more elongate cylindrical 
varieties, the thickening is less conspicuous, and the septation of the uniserial line of 
segments is indicated by slight external depressions. 
Yon Hantken’s drawings of the species represent a test of similar contour to fig. 32, 
but the aperture has no valvular tongue, a feature often wanting in fossil specimens. 
Clavulina cylindrica has been collected at four Stations in the North Atlantic, — off 
Gomera, Canaries, 620 fathoms ; off Sombrero Island, West Indies, 450 fathoms ; off’ 
Bermuda, 435 fathoms, and off’ the Azores, 450 fathoms : at one in the South 
Atlantic, — east of Buenos Ayres, 1900 fathoms : and at three in the South Pacific, — west 
coast of New Zealand, 275 fathoms ; off Ivandavu, Fiji Islands, 210 fathoms ; and off 
Paine Island, Torres Strait, 155 fathoms. 
Yon Hantken gives a considerable list of localities for the species in the Lower 
Clavu li nci- sza boi formation of Hungary, and states that it also occurs in the Bryozoa- 
marl of Priabona in Italy. 
Sub-family 2. Bulimininse. 
Bulimina, d’Orbigny. 
Bulimina, d’Orbigny [1826], Romer, Reuss, Altli, Bailey, Costa, Bornemann, Parker and Jones, 
Egger, Williamson, Karrer, Carpenter, Brady, M. Sars, Schwager, Giimbel, Hantken, &c. 
Robertina, d’Orbigny [1846], Reuss. 
Rotalina, pars, Reuss [1851]. 
Cucurbitina, pars, Costa [1856], 
A taxophragmium, Reuss [1861], Karrer. 
Pulvinulina, pars, Jones and Parker [1872]. 
Cassidulina, pars, Brady [1881], 
In the typical condition, the shell of Bulimina takes the form of an elongated 
spire, of which the final convolution is conspicuously large. The segments are numerous 
(ZOOL. CHALL. EXP. — PART XXII. — 1884.) Y 51 
