608 
Transactions of the Society. 
Ophthalmidium K ubler. 
Ophthalmidium inconstans Brady. 
Hauerina inconstans Brady, 1879, Quart. Journ. Micr. Sci., 
yoI. xix. n.s. p. 54. 0. inconstans Brady, 1884, Chall. Bept., p. 189, 
pi. xii. figs. 5, 7, 8. 0. inconstans (Brady) Brady, Parker, and 
Jones, 1888, Trans. Zool. Soc., vol. xii. p. 216, pi. xl. figs. 12, 13. 
0. inconstans (Brady) Egger, 1893, Abhandl. k. bayer. Akad. Wiss., 
Gl. II., yoI. xYiii. p. 244, pi. iii. figs. 6, 49. 
The Malay specimens are few in number, and are mostly of the 
Spiroloculine form from the Abrolhos Bank, figured by Brady, Parker, 
and Jones. Brady writes of tbe species, “Specimens of Ophthal- 
midium inconstans in their fullest development partake more or less 
of the characters of Cornuspira, Spiroculina , and Hauerina .” * 
Found only at Stations 2 and 17. The ‘Gazelle’ Stations are 
West Australia and Amboyna. 
Ophthalmidium tumidulum Brady, plate XIII. fig. 2. 
0. tumidulum Brady, 1884, Chall. Kept., p. 189, pi. xii. fig. 6. 
A solitary specimen from Station 25. It is rather more angular 
than Brady’s figure, and has three segments to each of the later 
convolutions. The surface has indications of faint oblique striae. 
Brady names but one ‘Challenger’ Station, “off Cubebra Island, 
West Indies,” but says it is found in a few other localities. 
Mcissilina Schlumberger. 
In all the Miliolidse which at certain stages change their plan of 
growth, there are two well-defined groups, in one of these the first 
stage is planospiral, consequently they may be regarded as dimorphic 
forms of Cornuspira. This arrangement prevails in the genera Verte- 
bralina , Ophthalmidium , and Planispirina. In the other group the 
earlier chambers are aggregated on one or other of the Milioline 
plans, as in Articulina , Massilina , and Hauerina. 
The genus Massilina, as constituted by Schlumberger, contains 
those forms which, commencing as Miliolina , subsequently change to 
Spiroloculina. Undoubtedly the accepted classification of this family 
stands greatly in need of improvement, but at present there is hardly 
sufficient material available to warrant the proposal of a new system. 
Massilina secans d’Orbigny sp., plate XIII. fig. 3. 
Quinqneloculina secans d’Orb., 1826, Ann. Sci. Xat., vol. vii. 
p. 303, No. 43 ; Modele, No. 96. Miliolina secans (d’Orb.) Sherborn 
and Chapman, 1886, Journ. Koy. Micr. Soc., p. 742, pi. xiv. fig. 4. 
Sigmoilina secans (d’Orb.) var. obliquistriata Halkyard, 1889, Trans. 
* Brady, ‘Challenger’ Report, 1884, p. 189. 
