NERIN ANA. 203 
135. Nerinma PseupocyLinprIca, D’Orbigny, 1850, fide Lycett, 1857. Plate XIII, 
fig. 9 and ? fig. 11. 
1842. Nerivma cyurnprica, Deslongchamps. Mém. Soc. Linn. Norm., vii, p- 187, 
pl. viii, fig. 33. 
1850. _— PSEUDOCYLINDRICA, D’Orb. Prod., i, p. 298 (Et. Bathonien). 
1852. _ — — Terr. Jurass., vol. ii, p. 86, pl. celii, 
figs. 11—13. 
1857. _— — — Lycett, Cotteswold Hills, pl. ii, fig. 5. 
Bibliography, §c.—Lycett makes no mention of D’Orbigny’s species in the text 
of the ‘Cotteswold Hills.” His specimen (in the Jermyn Street Museum) is much 
longer than the one now figured, and may indeed differ both from the forms here- 
under described and also from the Bathonian species, originally figured and 
described by Deslongchamps, and renamed by D’Orbigny. 
Description : 
Spiral angle (very regular) : ay ore 
Height of whorl to width . : s + seal 
Length 2 : . 50—120 mm. 
Shell subcylindrical, subulate. Whorls about sixteen in the specimen figured, 
but sometimes more, flat, about as high as wide and scarcely projecting; they 
are separated by an open and somewhat depressed suture. Numerous fine spiral 
lines ornament the whorls, but they become fainter in the more advanced whorls. 
Body-whorl nearly smooth, not salient, aperture narrow. Section triplicate ; 
a deep fold with a square head occupies the centre of the outer wall, one very 
small fold towards the base of the columella, one fold on the posterior wall. 
Relations and Distribution.—Distinguished from the next species by its wider 
spiral angle. A few specimens have been found in the Oolite Marl horizon of 
Longridge. The fragment from Weldon (fig. 11) may represent the same species 
in a different state of preservation. 
136. Nerinma attivotura, Witchell, 1887. Plate XIII, figs. 10a, 10, 10c, 10d. 
1887. Nerina aurrvotura, Witchell. Vol. cit., p. 33, pl. i, figs. 11, 12. 
Bibliography, §c.—Vhis species was founded by Mr. Witchell on fragments of 
the posterior portion of a very cylindrical Nerina. It is believed that specimens 
(such as 10 a and 10 d) represent apical conditions of this species. 
