50 Ammonoidea from Pondoland 



lateral saddle is comparable with that of H. tenuistriatus, Kner sp., in 

 Nowak, 1 but the umbilical portion of the suture-line is as simple as it 

 is in the dwarf -form of H. constrictus, Sowerby, figured by the same 

 author. 2 



'Scaphites' gillisi, Anderson, 3 has a suture-line similar to Woods' 

 example, but in the present form, the external saddle is not so wide, 

 and more like that of the American group of H. nodosus, Owen sp., 

 as figured by Meek. 4 H. constrictus (Sowerby) d'Orbigny sp. 5 with 

 similar inner whorls, has a more deeply indented suture-line. H. 

 constrictus, var. quiriquinensis, Wilckens, 6 though very similar to the 

 Pondoland example in external appearance, also has a different suture- 

 line. 



Yezoites pla?ius, Yabe, 7 also has comparable inner whorls, but its 

 suture-line has a wider external saddle. 



The Carnpanian Hoploscaphites of the constrictus-grouip here con- 

 sidered, may be developments of i Pachydiscus ' of the type of ' iV 

 menu, Forbes sp., with simplification of the suture-line, and they are 

 excluded from the hoplitid Scaphitidce of the Middle Cretaceous. 

 Anascaphites, Discoscaphites, Yezoites, and some Acanthoscaphites, 

 probably also have to be attached to the family Desmoceratidce. 



Genus OXYBELOCERAS, Hyatt. 



14. OXYBELOCERAS? CP. QUADRINODOSUM, Jimbo. Sp. 



PI. VII, figs. 2a, b. 



1894. Hamites quadrinodosus, Jimbo. " Beitr. z. Kenntn. d. Fauna 

 d. Kreidef. v. Hokkaido." Pal. Abh. N. F., Vol. II, Heft 3, 

 p. 39, pi. vii, figs. 3 & 4. 



1 " Untersuch. Cephalop. Ob. Kreide Polen.", II, Skaphiten. Bull. Ac. Sci. 

 Cracovie, July 1911, fig. 17 on p. 583. 



2 ib. fig. 18 on p. 587. 



3 loc cit. (1902), p. 110, pi. iii. figs. 85-8. 



4 "Inv. Cret & Tert. Foss. of Up. Missouri Country," in Hay den U.S. Geol. 

 Surv. of Territ. 1876, pi. 25. 



5 Pal. Franc , Ter, Cret. (1840), pi. 129, figs. 8-11. 



6 In Steinmann: "Beitr, z. Geol. & Pal. v. S.-Am." XI: "Revis. d. 

 Fauna d. Quiriquina-Sch." N. J. f. Min. etc. Beil. B. XVIII, 1904, p. 189, 

 pi. xvii, figs. 3-8. 



7 " Scaph. v. Hokkaido." Beitr. Pal. Geol. Ost.-Ung. Vol. 23 (1910), p. 167, 

 pi. xv, fig, 15 only. 



