46 HALKYARD, Fossil Foraminifera of the Blue Marl 



80. [Clavulina angularis, d'Orbigny.] 



[Clavulina angularis, d'Orbigny, 1826, Ann. Sci. Nat., vol. VII, 

 p. 268, No. 2, pi. XII, fig. 7.] 



8oa. Clavulina ulmensis (Gtimbel). 

 PI. Ill, figs. 4-6. 



Tritaxia (?) ulmensis, Giimbel, 1871, Sitz. k. bayer. Ak. Wiss.. 

 Wien, vol. I, p. 63, pi. I, figs. 2a, b. 



This species is a true Clavulina, being in fact the triangular 

 form of C. cylindrica, as C. angularis d'Orb is the triangular 

 form of the cylindrical C . communis. Gumbel's original figure,, 

 referred to above, represents a somewhat irregular specimen, 

 with a much tapering initial portion. My specimens are more 

 regular in form and more obtusely pointed at the aboral end 

 of the test. Not rare in No. 2 Gathering, rare and small in 

 Gathering No. 8. Absent in all others. 



(Halkyard's specimens are identical with the large speci- 

 mens of C. angularis so abundant in the Australian tertiary 

 deposits, and which Chapman has proved (C. 1907, T. F. V. p.. 

 29, 30. PI. IV, figs. 71-73) to be the microspheric form of the 

 normal megalospheric C. angularis with parallel sides. 

 Giimbel's name and other synonyms for this pyramidal form 

 must therefore be abandoned.) 



81. Clavulina gaudryustoides, Fornasini. 

 PI. Ill, figs. 1-3. 



Clavulina gaudryinoides, Fornasini, 1885. Boll. Soc. Geol. Ital.,. 

 vol. IV, p. 7, Tav. VI, figs. 3-9. 



This species was discovered by Fornasini in the Miocene 

 Marl of San Rufillo, near Bologna, Italy, and in his description 

 he makes the following remarks: "The aperture varies in 

 length and position, being found more or less distant from the 

 interior margin of the last chamber, it varies also in degree of 

 curvature, suggesting a passage to the linguiform aperture of 

 Valvulina. Sometimes it presents itself furnished with a species 

 of lip analogous to the small prolongation which is observed 

 so frequently in Clavulina communis, d'Orb. Keeping 

 account of the whole of the characters, the Textu- 

 larian of which we are speaking is to be regarded as intermedi- 

 ate between the dimorphous variety of the Valvulince and the 

 dimorphous variety of the T exUilarice. For palseontological 



