6 Transactions of the Society. 



suggest Opthalniidium, but the dorsal edge is double and grooved, 

 and it may prove to be a transition form. 



Fig. 7. — Five occur, but only one is in perfect condition. -The 

 tests are transparent and exceedingly fragile, showing no signs of 

 the " shelly septum " mentioned by Brady. They are similar to 

 the " Challenger " illustration, fig. 6, except that the " septum " is 

 wanting. The chambers are tubular, and support each other by 

 touching at the sides for a short portion of their length. It is 

 astonishing that a perfect test should have been found, after the 

 treatment of washing the material. The other four examples have 

 their central chambers missing. Possibly this form is a local 

 variation. 



Spiroloculina (?) convexiuscula Brady. 



S;piroloculina (?) convexiuscula Brady, 1884, Chall. Rept., p. 155, pi. x, figs. 

 18-20. 



A single specimen, which appears to be typical. 



Miliolina Williamson. 

 Miliolina valvularis (Reuss). (PI. I, figs. 8-10.) 



Triloculina valvularis Reuss, 1851, Zeitschr. d. deutsch. geol. Gesell., 



vol. iii, p. 85, pi. vii, fig. 56. 

 Miliolina valvularis Brady, 1884, Chall. Rept., p. 161, pi. iv, figs. 4, 5. 



The overlapping of the chambers is so neatly finished off that in 

 some of the examples the edges cannot be distinguished. The 

 section shows the test to be triloculine and the shell-wall thick. 



Miliolina seniintdnm (Linne). 



Serpula seminuhim Linne, 1767, Syst. Nat., 12th ed., p. 1264, No. 791. 

 Miliolina seminulum Williamson, 1858, Rec. Foram. Gt. Britain, p. 85, 

 pi. vii, figs. 183-185. 



Tests occur that are rather short and stout, but of good size. A 

 few small semi-translucent specimens are also present. 



Miliolina procera Goes. (PI. I, figs. 11-14.) 



Miliolina iwocera Goes, 1896, Bulletin, Mus. Comp. Zoology, Harvard 

 College, U.S.A., vol. xxix, No. 1, p. 82, pi. vii, figs. 7-9. 



Goes states that this is a short, inflated variety of M. semimolum, 

 and makes further remarks as to its probable allies. One of the 

 three specimens, figs. 11, 12, is very large, and shows the faint 

 longitudinal striation on the antepenultimate segment to which 

 Goes refers in his remarks. The aperture is rather narrow and 

 lipped. 



