12 I 



only a woodcut; the small differences may be individual; the number of spiral lirae described 

 by the author, as being from 8 — 12, are at least 12, perhaps 13; the most striking difference, 

 the simple peristome, is probably valueless, as it depends without doubt on age. E. A. Smith 

 (Ann. and Mag. of Nat. Hist. Ser. 7, Vol. 17, 1906, p. 170) mentions a specimen under the 

 name of var. indica, with the locality "off S. of Ceylon, 191 2 fath." which cannot be separated 

 specifically from the species under consideration. 



3. Oocorys elongata n. sp. PI. X, fig. 3. 



Stat. 221. 6°24'S., I24°39'E. Banda Sea. 2798 M. Solid, bluish-grey mud with Foraminifera. 

 2 Spec. 



Shell elongately-ovate, rather strong, white under a yellowish epidermis; spire rather 

 high; whorls 5, (nucleus wanting) convex, with an impressed suture and strong spiral lirae, 10 

 to 12 on the penultimate whorl, from 25 to 32 on the last one, they are separated by inter- 

 stices which are in most cases broader than the lirae; the whole shell (lirae and interstices) is 

 crossed by radiating striae. Aperture oblong-ovate, angular above, ending below in a very short, 

 wide canal, slightly directed towards the left, columellar margin covered by a layer of enamel 

 spread over the bodywhorl, it is grooved by the lirae and microscopically granular, columella 

 rounded, slightly curved, strongly bent to the left, along the canal; right margin regularly 

 curved, slightly expanded but not ribbed exteriorly, thickened and grooved interiorly; aperture 

 porcellaneous. A small umbilical slit, may disappear with age. 



Operculum typical, reddish-yellow, with a shallow groove at the right margin. 



Alt. 2,-^1^ lat. 22 1 /.,; apert. alt. 21 (incl. perist.) lat. n 1 /,. 



This species di fiers from O. sulcata, in being much more elongate, with a higher spire, 

 the aperture being about i 1 /., X as long as the spire, being nearly 2 X as long in O. sulcata, 

 even the more elongate figure of the "Challenger" specimen, is still shorter, and has also a 

 shorter spire in proportion. Benthodolium abyssorum Verrill, which agrees in this respect, is a 

 much more ventricose shell, with much broader aperture. The two specimens vary in sculpture 

 as stated above, that of the smallest specimen being considerably finer; the upper whorls of 

 this specimen are strongly eroded and the last whorl seems to have been broken, at least at 

 some distance from the thin margin an irregular varix makes its appearance, and the umbilicus 

 is more open. I think however these differences between the two specimens, will prove to be 

 individual and in part accidental. 



Fam. Cassididae Herm. 



Cassis Klein. 

 1 . Cassis (Semicassis) pila Reeve. 



REEVE. Conch. Ie. Vol. V, Cassis, fig. 21. 



RUMPH. Amb. Rariteitkamer, p. 84, PI. 25, fig. C. 



KOSTER. Martini-Chemn. Conch. Cab. Ed. II, Vol. III, Cassis, p. 39, PI. 51, fig. 9, 10. 



Tryon. Man. of Conch. Vol. VII, p. 275, PI. 5, fig. 75 {saburon var. pild). 



13 



