40 Ammonoidea from Pondoland 



DESCRIPTION OF SPECIES. 



Genus PHYLLOCERAS, Suess. 



1. — Phylloceras nera, Forbes sp. 



1895. Kossmat, " Untersuch. ii. d. Siidind. Kreideform.", pt. i, 

 'Beitr. z. Pal. & Geol. Ost.-Ung. etc.', vol. IX, p. 160, pi. 

 XVI (II), figs. 2a-d. 



An immature example of 20 mm. diameter shews good agreement 

 with Forbe's original (B.M. No. 10472, Geol. Soc. Coll.). Meek's 

 Ph. ramosum, 1 and the Antarctic form figured by Kilian & Reboul, 2 

 may belong to the same species ; but the Patagonian Ph. nera, 

 recorded by Paulcke 3 , is less compressed. ' Schlilteria ' bodei, Miiller 

 & Wollemann 4 , which, like the other forms, here discussed, is a true 

 Phylloceras, with finely divided suture-line, and which is generically 

 different from Schlilteria, as here restricted, may be the corresponding, 

 compressed European equivalent of the Indian Ph. nera. 



Ph. umzambiense, van Hoepen 5 , is a more inflated form, as is Ph. 

 buchianum, Forbes sp. 6 , which Kilian & Reboul included in the 

 present group, but which has the typically phylloid saddles of the 

 Barremian-Aptian species of the group of Ph. thetys, d'Orbigny sp. 



Ph. velledoB, Sharpe, non Michelin sp. 7 also included in the 'group 

 of Ph. ramosum ' by Kilian & Reboul, likewise is a more inflated 

 species. 



1 Descr. and Illustr. of Foss, fr. Vancouver's and Sucia Islands, etc.", U.S.G. 

 and G, Surv. Terr., Bull. II, 1876, p. 371, pi. v, figs. 1, la, b. 



2 " Ceph. Neocret. etc.", Wiss. Erg. Schwed. S.-Pol. Exp. Ill, 6, 1909, p. 9, 

 pi. I, fig. 3. 



3 "Ceph. d. Ob. Kreide S. Patagon," Ber. Naturf. Ges. Freib, i, B., vol. XV 

 (1907), p. 169 (3), pi. XIV (V), figs. 5, 5a-c. 



4 "Moll. Fauna d. Untersenon," II, Ceph. Abh. K. Preuss. Geol. L.-A., N. F. 

 47 (1906), p. 13. pi. viii, figs. 1, 2. 



5 Loc. Cit. 1920, p. 142, pi. xxiv, figs. 1-3. 



6 "Rep. on Foss. fr. S. Fe. de Bogota," Q.J.G.S., Vol. I, 1845, p, 177 (B.M. 

 No. 13097 and co-type). 



7 "Fossil Mollusca, Chalk of England," I, Ceph. Ill, Pal. Soc. 1856, pi. 

 XVII, fig. 7 (Mus. Pract. Geol. No. R 7760, Geol. Soc. Coll.). 



