218 ]\TKS. JANE 10NGSTAFF ON [May I909, 



■whorls of L. costulatum. Pern., 1 resembles that of the species 

 under discussion, but there the sinus is situated still higher. In 

 the Oxford University Museum are two specimens of this species ; 

 both are crushed and embedded in the matrix. The largest gives 

 evidence of having possessed more than nine "whorls ; on three 

 of these the characteristic lines of growth are preserved, but the 

 shell is so contorted obliquely that the form of the whorls is not 

 well shown. The other example is an internal mould consisting 

 of four whorls. There is also a smaller and apparently more 

 slender shell, which is not so much crushed as the others ; it is, 

 however, deeply embedded in the matrix, and its state of pre- 

 servation prevents it from being referred to this species with 

 certainty. 



Dimensions. — The fragment of three and a half whorls figured 

 (PL X, fig. 3) measures 16 millimetres in length, and the width 

 = 10 mm. This latter measurement is probably greater than it 

 must originally have been, on account of the specimen being so 

 much crushed. The largest shell in the Oxford University Museum 

 has nine whorls, and is 33 millimetres long. The specimen figured 

 by Lindstrom consists of six whorls, which are 32 mm. in length 

 and 14 mm. in width. 



Locality and horizon. — Ledbury, in the Lower Ludlow. 

 Lindstrom states that it is found in the Upper Limestone near 

 Wisby, and also at Westergarn. 



Loxoneha latouchei, sp. nov. (PI. X, figs. 4 a & 4 b.) 



Diagnosis. — Shell greatly elongated. Whorls more than 

 twenty-two in number, smooth, convex, slightly flattened above, 

 adpressed at the suture. Lines of growth very fine and close together, 

 sweeping obliquely backward above and forward below, forming 

 almost a right angle near the middle of the body-whorl, but below 

 the middle of the penultimate whorl, less strongly bent on the 

 penultimate and earlier whorls, and thus making a wider curve 

 on them. Aperture elongated, imperfectly known. 



Remarks and resemblances. — There are five specimens of 

 this species in the collection of the Pev. W. M. D. La Touche, one 

 of which is represented by both external and internal moulds ; 

 both these and two of the others have the surface well preserved. 

 The Manchester Museum contains two specimens in the Watson 

 Collection. All the shells are partly embedded in the matrix 

 and somewhat crushed ; those in the latter collection are so pre- 

 served as to have the sutures more oblique than the others. 

 L. latouchei may be distinguished from all other British species 

 by its great length and numerous whorls, which characteristics, 

 associated with the strongly bent lines of growth, also separate it 

 from all the Gothlandic and Bohemian species described by Lindstrom 

 and Perner. It may possibly be L. elegans, M'Coy, 2 but the holotype 



1 Op. cit. tome ii, p. 328 & text-fig. 239. 



2 ' Brit. Pal. Foss.' 1855, p. 302 & pi. i K, fig. 34. 



