Neio Fossils from the Bokkeveld Beds. 391 



NUCULITES SHAEPEI sp. nov. 



(PI. XLVII., figs. 7, 8.) 



Shell elongated oval, somewhat produced posteriorly and narrow- 

 ing behind beaks ; nearly twice as long as high ; height greatest at 

 beaks; surface strongly convex. Beaks obtuse, rounded, incurved, 

 situated at about one-third the length of shell from anterior end. 

 Ventral margin very slightly convex or nearly straight. Dorsal 

 margin behind beaks sloping obliquely down, nearly straight. 

 Anterior end short, obtusely pointed. Posterior end narrowing 

 gradually, longer and usually more pointed than anterior end. 

 Clavicular ridge narrow, starting a little in front of beak, nearly 

 vertical and straight or slightly inclined backwards, long, three- 

 fourths to four-fifths the height of shell. 



Surface of shell marked with fine striae and a few stronger 

 concentric growth-ridges. 



Dimensions. — Length 19 mm. ; height 10 mm. 



Localities. — Ezelfontein ; near Ceres Village. 



Remarks. — This shell is less elongated than N. capensis but more 

 so than N. abbreviatus. It much resembles N. smithi Clarke, with 

 which it has been previously compared by me,''' but the beaks are 

 more anteriorly situated. N. oblongata Conrad, f of the Hamilton 

 Group, is an allied form, but the clavicular ridge appears to be 

 shorter. Beushausen's CucuUella ellipticaM&m\,l from the Lower 

 Coblenzian, is a species with very close affinities. 



Genus PAL.EONEILO Hall, 1869. 



The following species of Palceoneilo have been recorded from the 

 Bokkeveld Beds : — 



Palceoneilo antiqua (Sharpe). 



,, ? arcuata Schwarz. 



,, Boyesi Schwarz. 



,, rudis (Sharpe). 



,, subantiqua Eeed. 



,, aff. constricta (Conr.). 



,, ci. fecunda Hall. 



* Reed, Geol. Mag., Dec. 5, vol. iii., 1906, p. 303. 



t Hall, Palffiont. New York, vol. v., pt. i., Lamellibr., pi. xlvii., figs. 1-12. 

 + Beushausen, Lamell. rhein. Devon (Abh. kon. preuss. geol. Landesanst., 

 N.F,, xvii., 1895), p. 104, t. v., figs. 9-15. 



