by L. F. Spatk 47 



to by Kossmat, as also in Forbes' holotype (Kaye & Cunliffe Coll., 

 Geol. Soc. No. 10485), whereas a co-type differs very little, if at all, 

 in this respect. 



In the Japanese examples allied to HJ damesi, Jimbo sp., studied 

 by the writer, the keel is still less distinct than it is in some of the 

 Indian specimens. HJ loryi, Kilian & Reboul sp. 1 is a fatter form. 

 The Californian example figured by Anderson, 2 also, apparently, has 

 a less prominent keel. 



As Kossmat 3 points out, Forbes' examples of A. sugata agree, in 

 matrix, with the holotype of A. gaudama (which, in the writer's 

 opinion is much more like ' Puzosia' indopacifica, Kossmat, I.e. pi. 

 xvii, fig. 2, than to ' P.' gaudama (Forbes), Kossmat, pi. xvii, fig. 3), 

 and A. sacya and A. buddha, Forbes, two ' Utatur ' forms, also, are 

 preserved in the same matrix, all labelled Verdachellum. This was 

 questioned by Blanford, but for the present purpose it is important to 

 note that the form here described, which was considered, by Kossmat, 

 to be a characteristic fossil of the Upper Trichinopoly group, and 

 which in California also is found in the Lower Chico group, does 

 not occur in the Upper Senonian Valudayur group, though, according 

 to Stoliczka, A. sugata, like Hauericeras gardeni and various species 

 of Kossmaticeras (Madrasites) range from the Upper Trichinopoly 

 into the Lower Ariyalur group. 



Genus MADRASITES, Kilian k Reboul. 



9. — Madrasites faku, van Hoepen sp. 



1920. Holcodiscus faku, van Hoepen: loc. cit. p. 144, pi. xxv, figs. 

 3 &, 4 ; pi. xxvi, figs. 1, 2. 



This form is represented by two examples of 75 and 72 mm. 

 diameter respectively. 



The holotype of ' Holcodiscus' acuticostatus, Crick MS. (B.M. No. 

 C19433) differs only in having a larger umbilicus (37% instead of 

 28-29%). ' Holcodiscus ' natalensis, Crick MS., has a somewhat 

 similar outer whorl, but more conspicuous tuberculation throughout, 

 and finely striate inner whorls. Both these species, however, are 



1 loc. cit. p. 18, pi. i, figs. 4, 5 (Desmoceras) . 



2 loc. cit (1902), p. 98, pi. iii, figs. 98-9, 



3 loc. cit, (1898), p. 116. 



