638 MESSRS. E. HERON-ALLEN AND A- EARLAND ON 
chambers often running in irregular chains, thick-walled, coarselj^ perforate, 
but without exogenous shell-matter, colour inclined to pale red running to 
dirty white. The final chamber of an extended series is often subglobular 
in shape and of large size. 
The first variety suggests Holodadina pustulifera Carter (C. 1880, SGrM. 
p. 447, pi. 18, figs. 4, a-g), but lacks the terminal perforation of the spine, 
upon which Carter lays a stress which appears to us to be superfluous. 
183. Gypsina rubra {d^ OrUgny). 
Planorhulina rubra d'Orbigny, 1826, TMC. p. 280, no. 4. 
„ Fornasini, 1908, SON. p. 44, pi. 2. fig. 3. 
Oypsina „ Heron-Allen & Barland, 1914-15, FKA. p. 725, pi. 53. 
figs. 35-37. 
Many large fragments. The exogenous shell-growth is not so abnormally 
developed as is usuall}^ the case in this form. 
184. GrYPSiNA VEsicuLARis {Parke)- Sf Jones). 
Orhitolina vesicularis Parker & Jones, 1859, etc., NF. 1860, p. 31, uo. 5. 
Gypsina „ Brady, 1884, FC. p. 718, pi. 101. figs. 9-12. 
Heron-Allen & Earland, 1914-15, FKA. p. 726. 
A few large water-worn specimens. 
185. Gypsina globulus (Eeuss) . 
Geriopora globulus Eeuss, 1847, Haidinger's Naturw. Abh. vol. ii. p. 33, pi. 5. 
fig. 7. 
Gijpsina „ Brady, 1884, FC. p. 717, pi. 101. fig. 8. 
Heron-Allen & Earland, 1914-15, FKA. p. 727. 
Large, but infrequent. 
Baculogypsina Sacco. 
186. Baculogypsina sPHiERULATA (Parker S,- Jones). (PL 37. fig. 65.) 
Orhitolina sphoirulata Parker & Jones, 1859, etc., NF. 1860, p. 33. 
Tinoporus haculatus Carpenter, 1856, etc., KF. 1860, p. 564, pi. 18, tigs. 2-6. 
Brady, 1884, FC. p. 716, pi. 101. figs. 4-7. 
Baculogypsina baoulaia Silvestri, 1905, B. p. 69, fig. 2. 
,, sphcerulatus Cushman, 1921, FP. p. 359, pi. 75. fig. 6. 
Extremely abundant ; attaining large dimensions and exhibiting great 
variety in the number, arrangement, and development of the spines or lobose 
processes. These frequently have a furcate appearance, but minute exami- 
nation shows that this appearance is due to the close proximity of separate 
processes. Some of the specimens are almost spherical, and in these, as 
a rule, the processes are short and inconspicuous, though often occurring 
in greater numbers than usual, and occasionally concentrated into closely 
