76 PKOCEEDINGS OF THE 3IALAC0L0GICAL SOCIETY. 



llnorALiTHEs GONiopuoRUS, Bellai'di. PI. IV, Fig. 1. 

 Fhsks goniophorus, Bellardi, Cat. Foss. Nummulit. Egitto : Mem. K. 



Accad. 8ci. Torino, ser. ii, vol. xv, p. 181, pi. i, fig. 8, 1854. 

 Clavalithes goniophorus, Oppenheim, Zur Kenntn. alttertiarer Faunen 

 Agypten: Palteontographica, vol. xxx, pt. iii, fasc. 2, p. 315, 

 pi. xxiii, fig. 6, 1906. 



Remarks. — I have regarded this species as belonging to Grabau's 

 genus Rhopalithes, which has been established on protoconchal 

 characters besides the presence of two or more oblique plications on 

 the columella, and the tj-pe of which is Fusus Noca of Lamarck from 

 the Lutetian and Bartonian of the Paris Basin (see Phylogeny of 

 Ftmis mid its Allies : Smithsonian Miscellaneous Collections, vol. xliv, 

 No. 1417, p. 135, 1904). A form from Dime has been well figured by 

 Dr. Oppenheim agreeing in all essentials with the present specimen 

 from the same series of beds near Qasr el Sagha, although the latter 

 is without its apical whorls. The angulated character of the spire is 

 characteristic. The whorls, of which there are four or five, possess 

 a very narrow and horizontal sutural platform, followed by an 

 obliquity reaching to a median carination, from which proceeds 

 a vertical basal region to the suture. A well-marked obtuse carination 

 occurs on the anterior area of the body-whorl, followed by a prolonged 

 canal. This species is closely related to Fusus Nocb of Lamarck, but 

 differs in its more angulate whorls, in the much contracted and more 

 elongate aperture, and in the possession of depressed sides to the 

 body-whorl. Bellardi's original figure of the shell represents a very 

 imperfect specimen, although the obliquity of the whorl posteriorly 

 is well seen. We are indebted, however, to Dr. Oppenheim for tlie 

 most useful figure of this form, which gives a dorsal view of an 

 excellent example exhibiting the early whorls of the spire with their 

 narrowly rounded and elevated vertical costae, crossed by numerous 

 horizontal spiral striations. In the succeeding volutions of the same 

 specimen the posterior obliquity and the anterior vertical surface of 

 each are well displayed. According to Dr. Oppenheim this fossil belongs 

 to the Upper Mokattam Beds of the neighbourhood of Cairo as well as 

 of the Fayum, and is therefore of Lutetian age. 



Formation. — Lutetian (Middle Eocene). 



Locality. — Near Qasr el Sagha (Dr. C. W. Andrews). 



Clavalithes Beabxelli, n.sp. PL IV, Fig. 2. 



Shell of large size, robust, scalariform, smooth ; whorls deep, 

 laterally compressed, vertical, sulcated posteriorly, and surmounted 

 by a wide horizontal sutural platform [rampe of French authors), 

 with projecting margin ; last whorl moderately inflated from the lower 

 margin of the sulcation to a depth of 32 millimetres, when contraction 

 sets in to form the narrow anterior canal ; columella covered with 

 a spreading callus; sculpture consisting of obscure concentric ridges 

 crossed by numerous, closely set, extremely fine and microscopical 

 striations. Diam. 80 mm. ; penultimate whorl, diam. 58, depth 25 mm. 



Remarks. — This specimen is a large robust type of shell with 

 remains of the four last whorls, and a very much fractured apertural 



