PURPURINA. 87 
in this country. In the typical P. bellona the spire is always higher, and the out- 
line is more angular. 
P. elaborata is somewhat scarce in the Sowerbyi-bed at Bradford Abbas. Most 
of the specimens found in the Murchisone-zone of the Cotteswolds must be referred 
here, as also the very stunted forms occasionally met with in the Lincolnshire 
Limestone. The Neringa-bed of the Yorkshire Dogger has yielded a very few 
characteristic specimens (N.B. The specimen from the Dogger, fig. 1g, is very 
inferior to some since obtained). On the whole then, P. elaborata is the charac- 
teristic Purpurina of the Lower Division, whilst P. bellona is restricted to the 
Upper Division. One specimen from the Murchisone-zone of Normandy is in 
Prof. Deslongchamps’ cabinet. 
2. Purpurtna: Species or Variety. Plate I, figs. 4 a, b. 
1853. Cf. TurBo ELaBoratus, Lycett. Proc. Cotteswold Field Club, vol. i, p- 77, 
pl. ui, fig. 1. 
Description.—Shell ovate; whorls about five, canaliculate towards the suture 
with subtumid flanks. The whorls of the spire are ornamented by stoutish longi- 
tudinal ribs, but these fail throughout the greater part of the body whorl. The 
spirals are moderately wide apart, and fine axial strize may be noted in the 
interspaces. 
The aperture is suborbicular, and the traces of the Purpwrina-notch are very 
slight. 
Relations and Distribution.—This species or variety possesses the flattened 
whorls of P. elaborata with much of the reticulate ornamentation of the species 
next described. The peculiar appearance of the aperture may be due to distortion, 
but it greatly resembles Lycett’s figure in the ‘Proc. Cotteswold Field Club. 
The condition of the shell is such that no further comparisons can be made. 
The specimen is from the Oolite-Marl. If a temporary name is required it 
might be known as PURPURINA APERTA. 
3. PuURPURINA CANCELLATA, sp. nov. Plate I, figs. 3 a, b. 
Description : 
Length : : d ; . 21 mm. 
Ratio of width to length : : 2 69, 3100. 
