A CONTRIBUTION TO THE GENUS FUSULINA. 3 



0. DOLIOLINA. Type: T. lepkla Hchwacjeu (PI. II., 

 ligs. 2, 3). 



Shell cyliiulrieal in llie typit-jil sj)C'cics, but si)lierical in those 

 approaching Schwager'uia. Septa of two kinds ; primary septa 

 being straight and basal skeletons more or less developed. 



1. NEOSCH WAGERINA. n. subg. Type : X. craÜcuUfera 

 Schwager (PL I., figs, o, 4). 



Shell fusiform to spherical. Septa of three kinds : transverse 

 septa numerous, and 1 to 4 auxiliary septa are found between 

 each pair of ])rimary septa. '^ 



The above lines are with but slight modification,'-^ an almost 

 complete recapitulation of the passages in my former paper " On 

 a Fumdina-\\m.cî-,tonQ, with Helicoprion in Japan." Since then two 

 important papers treating this group of Foraminifera have been 

 published, one by l^of. W. Volz and the other l)y Dr. G. II. 



GiRTY. 



In a recent work on the geology of Sumatra ,^^ Volz de- 

 scribed a Carboniferous Foi'aminifera of the family Fusulinidae 

 under the new name of Sumatrina Annae. This greatly interested 

 me, as I had once found an unquestionably identical form in 

 limestones from the province Bitchu in Japan, and from Ta-gai- 

 tung, En-ngan-hsien, prov. Yun-nan, in Ghina, and had taken 

 it to be an nn described species belonging to my Keoschwagerlna. 

 The reason ^Yhy I describe the subgenus as sometimes fusiform is 

 because I believe the Foraminifera is surely a form which should 

 be included in it. 



1) C. ScHWAGEH, one of llie most excellent observers of llie fossils of this group the 

 world ever seen, seems to liave already been disposed by a similar consideration to sei)arale 

 <S'. cralicullj'era from the other allies. (Carbon. Foram. ans China n. Japan. 1*. 14'J). 



2) T here substitnte 'anxiliary septa' for my older term 'secondary septa.' 

 o) W. VuLZ: Zur ütologie von Siunalra. (reo), u. Paieonl. Abhandl. 



