Tertiary Foraminif era from, Borneo. 255 



strong resemblance to the cliaracters of N. Lamarcki, the 

 European companion of N. hevfgata. N. Javanus, form A, 

 differs from iV. Lamarchi chieHy in its fewer convolutions 

 and its rather more robust habit of growth. 



Here and there in the same slides with N. javanus,ion\\ A, 

 we have met with vertical sections of rather smaller Numma- 

 lites less robustly built than their companions and with the 

 initial chambers measuring '12 millim. in widtli. We are 

 inclined to think that these Nummulites are variants of 

 N.javanus, form A, corresponding to tiie variety of N. La^ 

 marcki figured by d'Archiac and Haime in pi. iv. fig. 16 of 

 their monograph. 



Occurrence. N.javanus (both forms) occurs in our material 

 only in two pebbles from the bed of the River Malinam. lu 

 one pebble particularly it occurs in great profusion. 



3. Nummulites Djokdjokartce, K. Martin (sp.). 



Nummulites Lcnnarcki, R. D. M. Verbeek, " Tertiarformation von 

 Sumatra,"' Palseontograpbica, 1880, Suppl. 3, Lief. 8, Tlieil 1, p. 23 

 (uou Archiac and Haime). 



Nummuliiin Djokdjuhartce, K.Martin, "Tertiai--Versleinerungen voni 

 ostlichen Java," Samml geol. Eeichs-Mus. Leideu, 1881, no. 2, 

 p. 110, pi. V. figs. 9-11. 



Nttmmuliies Jogjakertce, R. D. M. Verbeek, " Voorloopig Bericht over 

 Nummulieten, Orbitoiden en Alveolinen van Java, &c.," Nat. 

 Tijdschr. v. Nederl. -Indie, 1891, vol. li. pp. 116, 117, tigs. 1-3 on 

 plate. 



Nummulites Joguiakartce, R. D. M. Verbeek and R. Fennema, Descrip- 

 tion g^ologique Java et Madoura, 1896, vol. i. pi. viii. figs. 114-119, 

 vol. ii. p. 1152. 



To this species we refer certain specimens which occur ia 

 the material collected by Prof. MolengraafF. This material, as 



Kummttlites DjokdjohartcB, K. Martin (sp.). 

 (Magnified 12 times.) 



already stated, consists of small boulders and a i^w micro- 

 scopic sections cut from two of them. On chipping one of 



