34 APvT. •'). — TT. YABE. 



LAGENA sp. indet. 



Pi. I, fig. 0. 



With some liesitation, T refer a form Iviiowii from a single 

 longitudinal section to the genus Lar/ena. It n.ppears to be pear- 

 shaped, somewhat produced at one end, and has a thin calcare- 

 ous and finely poriferous shell. I once met with quite a similar 

 form while examining a slice of a 'Kuro' limestone of Akasaka, 

 prov. Mino, which agrees with the Korean not only in outline 

 and structure, but also in dimensions. 



It attains 1.1 mm. in length and 0.6 mm. in breadth. 



BIGENERINA BRADYI MÖLLER sp. 



PI. II., fig. rx 



Compare : 



1870. Textularia eximia Brady: Monograph of Garb. 



and Perm. Foram. P. 132, pi. X., figs. 27-29. 



1897. Cribrostomum Brady i Möller: Foram. d. Russ. 



Kohlenkalk. p. ôo, pi. in., figs, la-e ; ])1. VI., 



fig. 1, text figures 18, 10. 



I compare the form represented in the above figure to 



Bigenerina Bradyi from the Russian and Bi-itish limestones ; 



the shell is small, attaining only 1.1 mm. in length and 0.55 mm. 



in breadth, composed of two rows of 4 and 5 alternating cham- 



])ers which are then followed by a uniserial one. It appears in 



the section, more parallel sided than the typical form figured 



in the above cited works ; this is ]>rob;ibly due to the slight 



obliquity of the section from the median plane. 



