W. H. Hudleston—The Yorkshire Oolite. 531 
“Javais Vabord pensé que cette espéce était identique au N. 
Remeri, Philippi (N. fasciata, Roemer, non Voltz), mais j’ai re- 
connu que ce sont deux espéces distinctes, la nétre ayant 6 cdtes 
toutes tuberculeuses, tandis que le N. Remeri a des cétes alterna- 
tivement tuberculeuses et simple.” This is driving matters very 
close indeed. D’Orbigny gives the opening of the spiral angle at 3°. 
30.—Nerinma, sp. Plate XVII. Figs. 8a, b. 
Description.—Specimen from the Coral Rag of Langton Wold 
(my Collection). 
Spiral angle, average about 5°. Shell extremely elongated, 
cylindrical. The average angle to be deduced from the imperfect 
specimen is about 5°, but was probably less towards the apex. The 
bounding rim of each whorl is scarcely at all raised (Fig. 3b), and 
is devoid of tuberculations: the suture is tolerably distinct. Within 
the space inclosed between the upper and lower flattened rim are 
three rows of granulated costa, of which the middle one is slightly 
the strongest. 
Relations and Distribution —Not much can be made out of such 
a fragment by way of accurate comparison. The nearest figured form 
is N. subtricincta, D’Orbigny (Terr. Jurass. vol. ii. p. 150, pl. 271, figs. 
8-10). The dimensions agree pretty well, but in the French 
specimen the upper and lower edges or rims of the whorl are tuber- 
culated. 
It is by far the longest and narrowest of the Yorkshire Nerinzas, 
and ill-preserved fragments, showing it to have attained a great 
length, are to be met with in the Coral Rag of the Howardians. It 
may in part be the “allongiuscula” of Bean, but whatever the 
designation it is a totally different species from the one described as 
N. Remeri (Plate XVII. Fig. 2). 
31.—Nerinza GoopHatuit, Sowerby, 1836. Plate XVII. Fig. 4. 
Nerinea Goodhallii, Sowerby in Fitton, G. T, 2 ser, vol. iv. p. 348, tab. 23, fig. 12. 
Bibliography, ete.—Sowerby’s specimen was from the Corallian 
of Weymouth, where it is one of the characteristic fossils of the 
Trigonia-beds. The average spiral angle of his figure is 10°. His 
description is very brief: “'Turrited, smooth ; whorls numerous, half 
as long as they are wide, concave. There are three plaits in the 
interior, one upon the columella, one opposite to it, and one above 
within the whorl: aperture rhomboidal.” 
Description.—Specimen from the Coral Rag of Yorkshire (Collec- 
tion of the Yorkshire Philosophical Society). 
engih, estimated’, devs cwtreapeduripk aia yer aths 135 millimétres. 
Gresitesh: widthiiy, Suetamitere atieneella cic tala chgelaent: 19 a 
mpiral angles averagel .f-)s\aqjeesis «ele saci edaleate LO": 
Shell elongated, conical, turrited. The portion of the spire pre- 
served is composed of whorls which increase under a regular angle of 
10°. They are much excavated, and proportionately raised at either 
margin. On the posterior margin there is no decided rim, but the 
anterior margin of each whorl developes a very strong rim, which 
