267 
Report on Foraminifera. By F. W. Millett. 
Miliolina Williamson, 1858. 
Group of Miliolina oblonga. 
Aperture dentate. 
Miliolina oblonga Montagu sp., pi. V. fig. 14 a, b. 
Vermiculum oblongum Montagu, 1803, Test. Brit., p. 522, pi. xiv. 
fig. 9. Miliolina oblonga (Montagu) T. Rupert Jones, 1895, Pal. 
Soc., p. 120, pi. iii. figs. 31, 32, and pi. v. fig. 5. 
The type is rather rare, but several varieties and passage forms 
are represented at most of the Stations. 
Miliolina rotunda d’Orbigny sp., pi. V. figs. 15, 16. 
Triloculina rotunda d’Orbign} 7 , 1826, Ann. Sci. Nat., vol. vii. 
No. 4, p. 299. T. rotunda (d’Orb.) Sclilumberger, 1893, Mem. Soc. 
Zool. de France, vol. vi. p. 206, pi. i. figs. 48-50. 
This is a variety of M. oblonga with inflated chambers and a large 
circular aperture. It is as common in the Biloculine as in the Tri- 
loculine condition, but the former is slightly the larger. Forms 
closely allied or identical are Triloculina laevigata, d’Orb., Quinque- 
loculina vulgaris d’Orb., Miliolina anconensis Schultze, and M. 
cuneata , Biloculine variety, Brady.* The form from Humboldt 
Bay, Papua, assigned by Brady to M. gracilis ,| appears to be an 
elongate form of this variety, and is common in the Malay Archipelago. 
M. rotunda is recorded from several parts of the Mediterranean, and 
occurs plentifully in several of Mr. Durrand’s Stations in both Areas. 
As a fossil it attains a large size in the Pliocene (?) clay of St. Erth, 
Cornwall. If the form’ ascribed by A. Silvestri to M. cuneata J is 
identical, it also occurs of great size in the Pliocene of Siena, Italy. 
Miliolina Bosciana d’Orbigny sp., plate Y I. fig. 1. 
Quinqueloculina Bosciana d’Orbigny, 1839. De la Sagra, Hist. 
Physique de File de Cuba, Foraminiferes, p. 191, pi. xi. figs. 22-24. 
A form of M. oblonga, in which the chambers are more numerous 
and the sutures oblique. Worthy of notice from the diversity of its 
surface ornamentation. 
Alveolate var., plate YI. fig. 2. 
In this variety the aperture has not the thickened margin charac- 
teristic of the other forms, thus more nearly approaching d’Orbigny’s 
specimens from the Antilles. The markings are very variable, rang- 
ing from a few scattered shallow depressions to striato-punctate as in 
M. Rupertiana. 
* ‘ Challenger’ Report, 1884, p. 139, pi. i. figs. 19, 20. 
t Torn, cit., p. 160, pi. v. fig. 3. 
X Mem. Tontif. Accad. dei Nuovi Lincei, vol. xii. 1896, p. 35, pi. i. fig. 12. 
