52 JOURNAL OF THE [April, 



2. Gl. lacnii/a, Rss. Haidinger's gesamm. naturwiss. AbhdI., iv. i, 

 43, pi. V. fig. 9. Very rare, as in the mucronate marls of Lemberg. 



b) Guttulina, d'Orb. 



G. cretacea, Alth. L. c. 319. Very rare. A more slender, strongly 

 pointed variety. 



c) Polymorphina, d'Orb. 



1. p. siibrlwmbica, n. sp. PL vii. fig. 3. Very rare. The shell 0.9S 

 mm. long, rhomboidal in outline, obtusely pointed to the same e.xtent on 

 both sides, the transverse section narrowly elliptical, the margins angular. 

 There are to be seen e.Kternally only four slightly arched, double rows of 

 alternating oblique chambers. Sutures linear, obscure, especially the 

 lower ones. Orifice radiated. The species closely resernbles P. ovata, 

 d'Orb. Foraminifera du bass. tert. de Vienne, pi. xiii. figs. 1-3. From the 

 miocene strata of the Vienna Basin, and with the oligocene. 



2. P. regularis, v. M. Reuss, Sitzungsber. d. k. Akad. d. Wiss., xviii. 

 247, pi. vii. figs. 70-73. It is, however, sufficiently distinct from both. 



From the preceding list it will be seen that I have thus far found 28 

 species of Foraminifera in the Cretaceous Greensand of New Jersey. From 

 the many indeterminable fragments of which I could not possibly deter- 

 mine the genus, the number is undoubtedly greater. From the above 

 number three species, which could not be positively decided on, must be 

 omitted therefore, leaving only 25 species, of which 7 — Deiitalina coiijliieiis, 

 Dentalina colligala, Cristellaria Baylei, Rotalia Mortoni, Truncatnlina 

 Dc Kayi, Bulimina tortilis and Polymorphina subrJiombica — have, hitherto, 

 not been discovered elsewhere. There remains for comparison only iS 

 species They are all collected in the upper Cretaceous of other countries, 

 and 5 of them — Robulina tracliyompliala, Rss., Rosalina Bosqueji, Rss., 

 TruncatuUua convexa, Rss., Globiiliiia lacriina, Rss., and GuttuUtia 

 cretacea, Alth. — are exclusive in these beds. 



Four species — Nodosaria polygona, Rss., Deiitalina Steenstmpi, Rss., 

 Cnstellaria intermedia, Rss. , and Rotalia A'arsteni^Kss. — are found in 

 other countries in the Cretaceous beds also. Five species — Dentalina 

 gracilis, d'Orb., Rotalia nitida, Rss., Rotalia Micheliniana, d'Orb., 

 Globuliua globosa, v. Mstr. and Marginulina ensis, Rss. — extend into the 

 " Planer." Glohulina globosa, however, also extends upward into the 

 Oligocene and Miocene Tertiary beds Rosalina ammonoides and Fallina 

 coidata, Rss. extend from their vertical range and mucronate bed into 

 the Cretaceous, while Criitellaria roiiilata, Lam. sp. and Rotalia poly- 

 raphes, Rss. are found as low as the " Gault." 



In the Cretaceous Greensand of New Jersey the Rhabdoidians and the 

 Nodosaridians are represented by 6, the Frondicularidians by i, the Cris- 

 tellaridians by 5 species, the Lituolidians by i, the Rotalidians by 9, and 

 finally the Polymorphinidians by 6 species. The Family of Rotalidians, 

 therefore, furnishes the greatest number of species, while the Rhabdoidians 

 and Polymorphinidians follow next in order. The most numerous species 

 are those belonging to the genera Rotalia (5) and Dentalina (4). With 



