42 DEVONIAN PAUNA. 



which is bounded by a blunt angle at tlie shoulder, the rest of the whorl being 

 gently convex. Surface smooth, shell-structure rather thick. 



Sile. — An imperfect specimen is 6 mm. long and 2 mm. wide. 



Localltij. — In the Barnstaple Athenseum are two specimens from Kingdon's, 

 Shirwell, and one from Vicarage Well, Pilton. 



Bemarks — These specimens are portions of an extremely elongate shell, which 

 increases very slowly, the diameter of the highest remaining whorl being more 

 than half that of the fifth below it. As far as can be seen they exactly correspond 

 with the species described by Sandberger, which, as stated by him, is a synonym 

 of TnrriteUa trochleata, Miinster. The latter shell, he says, is different from 

 Tiivhonilla trochleata, Geinitz,^ which certainly seems to have narrower and 

 more convex whorls than our specimens. 



To Romer's own shell they bear less likeness, as that is described as finely 

 striated on the body- whorl, and has perhaps even broader whorls. As, however, 

 the body-whorls of our specimens seem lost, and the surface of the shell is in 

 rather obscure preservation, and as Sandberger distinctly describes the whorls as 

 smooth, there appears to be no reason to separate them on that account. 



A kindred specimen in the Woodwardian Museum from west of Saunton Court 

 is noteworthy, though it is too poor for identification. Three or four whorls are 

 seen, which increase much more rapidly in height than in width, so that the 

 lower whorls are one and a half times as high as wide. Possibly it is only a 

 distorted variety of the present species, but it presents great similarity to species 

 of the genus Suhulites, to which it may perhaps belong. 



Affinities. — The very similar specimen figured by Frech'^ appears from his 

 description to be a Murchisonia, having a sinus-band. 



3. LoxoNEMA PRiscuM, Milnster, sp? 



1891. LoxoNEMA PEiscuM, Whidbome. Dev. Faun., vol. i, p. 181, pi. xviii, 



figs. 17—19. 



Localities. — There are several small specimens in the "Woodwardian Museum 

 from the west of Saunton Court. 



Remarks. — These specimens, which are in a very poor state of preservation, 

 seem very similar to the fossils from Lummaton and Wolborough, which I have 

 referred to this species. 



Ajfinities.— They differ from the Shir well specimens referred to L. trochleatum 



1 1853, Geinitz, ' Verst. Grauw. Sachs.,' pt. 2, p. 42, pi. xi, fig. 7. 



2 1887, Freeh, 'Zeitsch. Deutsch. Geol. Gesell.,' vol. xxxix, p. 730, pi. xxviii, fig. 1. 



