46 Ammonoidea Jrom Pondoland 



merely curved forwards, not biconvex. The Phylloceras sp. figured 

 by Woods, 1 and compared with Ph. forbesianum, D'Orbigny sp. but 

 characterised by ASc'A/wterm-ornamentation, with ventral lappets, is 

 not unlike the young specimen, above mentioned, and compared with 

 the typical S. diphylloides, figured by Kosmat, 2 this shews the inflated 

 whorl-section of the early stage of the new form. In the adult, the 

 ventral portion of the whorl is more rounded. As in Seunes's species, 

 the labial ridges of the shell are marked only near the periphery, on 

 the cast ; the constrictions (beneath the ridges of the test) are 

 continuous on the sides. 



The Utatur Ammonite, figured as A. diphylloides, by Stolizka 3 

 resembles the present species in its inflated whorl-section, but has far 

 less linguiform ventral lappets, and probably is a Desmoceras s.s. 

 (= Latidorsella, Jacob.). 



The genus Schlilteria is here used for the Senonian Desmoceratids 

 that, erroneously, have been included in " Latidorsella." Only, since 

 Grossouvre had originally included in Schlilteria certain forms of 

 Phylloceras that attach themselves to the group of P. nera, Forbes sp., 

 here described, S. larteti, Seunes sp. will have to be taken as type of 

 this emended genus Schlilteria. 



Genus HAUERICERAS, Grossouvre. 



8. — Hauericeras? sugata, Forbes sp. Plate VI, figs. 3a, b. 



1898. Desmoceras sugata (Forbes), Kossmat : loc. cit. p. Ill, pi. 

 xix, fig. 1. 



This well-known form is represented by a completely septate 

 example of 30 mm. diameter, keeled throughout the outer whorl, and 

 having about three of the characteristic, distant, crescent-shaped 

 ridges on the last half-whorl. The Pondoland example differs from 

 the Indian forms, described by Kossmat (but not from Forbes' holo- 

 type), in being slightly more inflated (thickness = 46% of the 

 diameter, not 36-42%) and the keel is more distinct than it is in one 

 Yaludayur example in the British Museum (C. T. Kaye Coll.), referred 



1 loc. cit. (1906), p. 332, pi. xli, fig. 5. 



2 loc. cit. (1897), p. 108 (173), pi. xix (xxv), fig. 9a, b. This agrees with 

 Forbes' holotype (No. 10470) and the three cotypes in the B.M. 



3 loc. cit. (1865), p. 119, pi. lix, fig. 10. 



