﻿LOXONEMA. 181 



Remarks. — This shell approaches Loxonema reticulatum in its general shape and 

 its markings, but it differs in haviDg hardly any indentation at the suture, and in 

 its whorls being almost flat and much broader. Its mouth also appears to be 

 smaller and less produced below, and its ornamentation seems somewhat 

 coarser and sharper. Mr. Roberts and I, on examining it together, came to the 

 conclusion that in all probability it is a distinct species. The material, however, at 

 our command is very scanty and difficult to decipher, so that it is quite possible 

 that these differences may ultimately prove to be due to accident or specific 

 variation. At the same time, as far as can be at present seen they appear 

 so numerous and distinctive, that it seems unwise to include it as a variety in 

 Phillips's species. The existing whorls would lead to the supposition that it 

 was much more elongate than that species, and had still more numerous whorls. 



7. Loxonema peiscum, Miinster, sp. PL XVIII, figs. 17 — 19. 



? 1837. Tubbitella obsoleta, Sowerby. Murchison's Sil. Syst., p. 603, pi. iii, 



figs. 7 a, 12 /. 

 ? 1837. — geegabia, Sowerby. Ibid., p. 603, pi. iii, fig. If. 



1840. Melania pbisca, Miinster. Beitr., pt. 3, p. 83, pi. xv, fig. 1. 

 1853. Holopella piligeba, Sandberger. Verst. Rhein. Nassau, p. 228, pi. xxvi, 



figs. 9, 9 a — c. 



1881. Loxonema deobnatum, de Koninck. Annales Mus. Royal H. N. Belg., 



vol. vi, p. 47, pi. iv, figs. 24, 25. 



1882. Holopella piligeba, Hohapfel. Palaeontographica, vol. xxviii, p. 249. 

 1889. — — Whidborne. Geol. Mag., dec. 3, vol. vi, p. 30. 



Description. — Shell small, elongate, slender, spiral, of many volutions. Sutural 

 angle small, constant. Suture linear, deep. Whorls nine or ten, smooth, broad, 

 regularly convex. Body-whorl rather larger and broader in proportion than the 

 penultimate whorl, slightly flattened in the middle, curving rather suddenly to 

 form the base of the shell. Aperture subcircular, rather large. Columella strong, 

 straight, rather long, being about half the length of the mouth. Inner lip diffuse, 

 callous. Outer lip semicircular. Surface smooth. 



Size. — Height 21 mm., width 5 mm. 



Localities. — From Wolborough there are two or perhaps three specimens in 

 Mr. Vicary's Collection, one in the Museum of Practical Geology, and one in the 

 Torquay Museum. From Lummaton there are two specimens in the Battersby 

 Collection of the Torquay Museum. 



Remarks. — The type specimen of the present species as occurring in Devon- 

 shire is the fine example figured in PL XVIII, fig. 19. Most of the other speci- 



