324 Annals of the South African Museum. 



Genus PIRIFUSUS, Conrad. 



PiRiFusus Bailyi, sp. nov. 



Plate XL., figs. 3, 4. 



1871. Pollia pondicherriensis, Griesbach, Q.J.G.S., xxvii., p. 62 [noii 



Forbes). 



Description. — Shell ovate-conical. Spire moderately short, com- 

 posed of four or five flattened or slightly convex whorls. Sutures 

 deep. Last whorl large, rounded, with a sulcus in front of the 

 suture ; ornamented with strong transverse ribs, and smaller spiral 

 ribs which give a tuberculate appearance to the transverse ribs. 

 The transverse ribs extend across the sulcus. 



Aperture large, ovate, angular and notched posteriorly. Outer lip 

 crenulate, curving gradually to the end of the canal. Inner lip 

 callous, extensive. Columella curved. Anterior canal short, bent, 

 with a few small ridges on its inner border. 



Bemarks. — There are two imperfect specimens of this species in 

 the Griesbach Collection ; one consists of the last whorl and a part 

 of the penultimate whorl, the other shows the spire and a part of the 

 last whorl. These specimens were identified by Griesbach with 

 Pollia pondicherriensis (Forbes),* but they seem to be quite distinct 

 from that form. They show some resemblance to Pirifusus fencs- 

 tratus (Miiller), I and to P. granulatus (Stoliczka). :|: 



Genus SEMIFUSUS, Swainson. 



Semifusus '? (Mayekia ?), sp. 



Plate XL., fig. 5. 



A single specimen, in which the aperture and anterior part of the 



last whorl are not preserved, presents considerable resemblance to 



Lagena secans, Stoliczka, § from the Ariyalur Group, but differs in 



that the suture of the last two whorls is in front of the second carina. 



L. secans is regarded by Cossmann ij as probably belonging to 



* Trans. Geol. Soc, ser. 2, vol. vii. (1846), p. 127, pi. xiii., fig. 20. Stoliczka, 

 Cret. Fauna S. India, vol. ii. (1867), p. 127, pi. xi., figs. 10-12. ? Canthanda.-<, 

 Cossmann, Paleoconch. Coniparee, iv. (1901), p. 173. 



t Holzapfel, MoUusk. Aachen. Kreide (Palseontographica, xxxiv., 1888), p. 109, 

 pi. X., figs. 13, 14. Cossmann, op. cit., iv., p. 84, pi. vi., fig. 22. 



+ Oj). cit., p. 125, pi. xi., figs. 6, 7. Compare also P. auhdeimitus, WhitAeld, 

 Gasterop. and Cephalop. Earitan Clays, &c. (Mon. U.S. Geol. Sm'vey, xviii., 

 1892), p. 48, pi. iv., figs 1-3. 



§ Cret. Fauna S. India, vol. ii. (1867), p. 138, pi. xi., figs. 19, 20. 



II Paleoconch. Comparee, livr. 4 (1901), p. 94. 



