80 Transactions. 



P. canariensis, d'Orb. sp. 

 *P. auricula, F. and M. sp. 

 ■'P. schreibersii, d'Orb. sp. 



Rotalia soldanii, d'Orb. 

 ':B. papillosa, var. compressiuscula, Brady. 



B. clathrata, Brady. 



Nouionina umbtlicatula, Montagu sp. 



Beferences given below are restricted to the original re- 

 cords and one or two of the more important of later date. 



Order FORAMINIFERA. 



Family MILIOLIM]. 



Subfamily Milioliniisle. 



Genus Biloculina, d'Orbigny. 



Biloculina pisum, Schlumberger. 



Biloculina pisum, Schlumberger, 1891, Mem. Soc. Zool. 



France, vol. iv, p. 569, pi. xi, figs. 81-83; text-figure 31. 



This species is hardly distinguishable in external appear- 

 ance from the nearly allied B. vespertilio, Schlumberger,* 

 and B. bradii, Schl.f; the shape of the aperture being one 

 of the characters which separate it. Upon slicing the tests, 

 however, the identity of our specimens with the above, B. 

 pisum, is at once apparent, since the internal arrangement of 

 the chambers in their relation to one another, especially at 

 the point of incurvation and fusion to the previous chamber- 

 wall, is characteristic of this species and B. comata, Brady 4 

 The latter species is distinguished by its externally striated 

 shell-surface ; the arrangement of the initial series of cham- 

 bers is also different, and the wall of the first chamber in 

 B. comata (form A) is thick, whilst in B. pisum (form A) it 

 is very thin. 



The original locality given by Schlumberger for B. pisum 

 is the Mediterranean. 



Although this form is quite common in the present series, 

 the tests all appear to belong to the megalospheric type of 

 shell (form A), as Schlumberger also found. 



Biloculina anomala, Schlumberger. 

 Biloculina anomala, Schlumberger, 1891, Mem. Soc. Zool. 

 France, vol. iv, p. 569, pi. xi, figs. 84-86 ; pi. xii, fig. 101 ; 

 text-figures 32-34. 



• Op. sr*pra cit., p. 561. 

 t Op. supra cit., p. 557. 

 J Kep. Chall., vol. ix, 1884, p. 144, pi. iii, figs. 9 a, b. 



