1^00 G. B. Pritrhitrd : 



shows u distinct costatioii on the eailier spirt- whorls and a 

 stronger spiral striation. In my former paper I iiKlu(h'd V . mac- 

 ropfera in the list of species requii'ing contiiniation. Professor 

 Tate evidently accepted this, as in liis lat#i- list, witli Mi-. Dennant, 

 Correlation Paper, part iii., p. 13-i. this species was omitted from 

 the Table Cape records. 



21. VOLUTA WYNYAKDENSIS, sp. nOV. (PI. XXL, FigS. 1, 2). 



Shell of medium size, ovately fusiform, with an i)1)liquely 

 ■enrolled mammilate apex, and a few strongly and closely costate 

 w^horls ending in a narrowly ovate aperture without a simple 

 margin. 



Apical angle about foi'ty-five degrees. The niannnilate embryo is 

 made up of two smooth obliquely enrolled Avliorls, in appearance 

 indicating the probable possession of an exsert tip. Succeeding the 

 embryonic whorls there are about four wlioils, flatly convex, u 

 shoulder gradually developing on the second, and increasing to 

 ■considerable strength on the body-Avhorl. Distinct overlap of whorls 

 at the suture. Whorls closely and nari-owly costate, nund)ering 

 about sixteen on the eai-liei- spire whorls, increasing to about twenty 

 on the body wdiorl. The whole siirface marked by fine closr spiral 

 threads. The body whorl becomes rather l)roken up by slightly 

 sigmoidal lines of growth, whicli are much stronger than the spiral 

 threads, but the earlier whorls do not clearly show the lines of 

 ■growth, while the spiral thi-eads are (|uite distinct. Aperture 

 narrow, ovate, outer li]) ascending slightly at the postcrioi- end. 

 anterior canal relatively brinid, l)uf sliallow. Cohniiella only 

 slightly twisted, and fui-nished with four narrow ol>]i(|ii:' plaits, 

 and smooth enamelled area sliar])ly inarked oh' from tlie sculpt ui-ed 

 portion of the body Avhoil. 



Dimensions. — Length, SO mm.,; lireadtli, 4(1 mm.: length of 

 aperture, 47 nun.; breadth of aperture, 1 (> mm.; bicadth of 

 anterior notch, 7 nnn. 



Obs.— Type froiu the Table Cape Heds. c-olleete.l by Mr. IJ. .\ 

 Atkinscui. .\ hue s])ecies, <|uite distinct from anything yet de- 

 scribed, and in an excellent state of preseivat ion e.xc'cpt in leuai'd 

 to the c^xti'eme a))ex, t!ie appearance would seem to jioinf to an 

 exsert tip, but nothing ai)solute can be asserted in tliis respect till 

 more specimens are o))tained. The spec-imen as described does not 

 appear to Ik- (piite niature, but its chai-acters are very striking, 

 nevertheless. 1 am in jiossession of an imperfect specimen, collected 

 by myself from these beds, which juobablv tits (ui to this species as a 



