in Tertiary Rocks of Neiv Guinea. 209 



than in Schkimberger's illustrations, but if our figures are subjected 

 to a higher magaification a coarser effect is produced which yields 

 a considerable resemblance to the type. First regarded as Tertiary, 

 then Miocene, Martin ' finally admitted this organism as of Eocene age, 

 more particularly as it was now known to have been found with 

 Nummulifes in the rocks of south-western New Guinea (Setakwa 

 Ptiver). On account of its great fi'equency in the limestones of 

 New Guinea, Martin established the name Lacazinenlcalh. Miliolines 

 are in close association with this genus, forms being clearly depicted 

 in Fig. U of Plate IX. 



Dimensions. — From 1 to 4 mm. in diameter. 



Occurrence. — In pebbles Nos. 1 and 28. 



Distrihntion. — Species found only in New Guinea rocks. 



Orthophragmina sp. (PI. IX, Fig. 4.) 

 A fragmentary example of this genus is to be observed on the 

 polished surface of No. 1 pebble. It is merely a portion of a 

 horizontal section measuring about 8 mm. across the disc, exhibiting 

 remains of eight or nine of the later annulatious which enclose 

 numerous rectangular chamberlets characteristic of Orthophragynina, 

 an Eocene genus founded by Munier-Chalmas^ in 1891, on the type 

 of Michelin's Orhitolites pratti, from the Eocene of Biarritz, France. 



From this single imperfect specimen and with no knowledge of its 

 embryonic characters, it is not possible to venture on a specific 

 determination. Nevertheless, so far as the evidence goes, it may be 

 stated to show resemblances to the published figures of 0. pratti,'^ 

 which includes Giimbel's Orhitoides {DiscocycUna) papyracea, non 

 Eoubee,* an Eocene form of Europe and other countries. 



Occurrmce. — Pebble No. 1 ; associated Avith Akeolina, Lacazina, 

 Miliolines, etc. 



Carpentkeia conoidea, Ptutten. (PI. IX, Fig. 5.) 



Carpenteria conoidea, Eutten, Wichmann's Nova Guinea, vol. vi, " G^ologie," 

 pt. ii, pi. vii, figs. 6-9, p. 47, 1914. 



Dr. Piitten has described an erect form of Carpenteria from the 

 older Miocene deposits of northern New Guinea to which the present 

 specimen may be referred. The fossil in question is the large 

 central organism represented in Fig. 5, in which is displayed a 

 longitudinal view of the interior showing a segmental structure 

 composed of thick and porous walls, and a well-marked conoid-apical 

 region, from which succeeds its later development widening 

 appreciably to the base. The chambers, especially those observed 

 near the base, are of crescentic form resembling Gloligerina. 



^ " Palaozoische, Mesozoische, und Kanozoiscbe Sedimente siidwestlichen 

 Neu-Guinea " : Samml. Geol. Eeichs.-Mus. Leiden, vol. ix, p. 104, 1911. 



^ Etude du Tithonique, du Cretaci, et du Tertiaire dii Vicentin, 1891, 

 These de doctorat, p. 18. 



^ Schlumberger, Bull. Soc. Geol, France, ser. IV, vol. iii, pis. viii, ix, p. 274, 

 1903. 



■* Giimbel, Beitrage zur Foraminiferen der Nordalinnen Eocdngehilde, 1868, 

 pi. iii, fig. 1, p. 112. 



DECADE VI. — VOL. V.— NO. V. 14 



