132 CARBONIFEROUS CEPHALOPODA OF IRELAND. 



descriljecl are wider than high, while iu Aipoceras (see p. IIC) the reverse of this 

 is the case. Its relationship, therefore, taking this feature into account, would 

 lean rather towards Solenocheilus than Aiiyocera^, and the non-contiguity of the 

 whorls may, when all is considered, be of less importance than their general con- 

 formation. The qiiestion must rest in uncertainty for the present. 



Localitij. — Near Cork. 



Incertx sedis. 



A specimen belonging to the family Solenocheilidag, but too imperfect for 

 specific identification, is interesting from its exhiljiting what ajppears to he a portion 

 of the outer test, which is ornamented with very prominent, transverse, rugose 

 lines. The general form of the shell is very similar to that of Asymptoceras 

 crassilabrmii, and this resemblance is particularly observable in the broad, slightly 

 depressed periphery ; the septa also, so far as they can be made out, agree with 

 that species. The margin of the aperture is not preserved, a considerable part of 

 the body-chamber having been broken off, thus destroying the evidence which 

 might have established its identity wdth A. crassilahrnm. 



This is the specimen referred to by M'Coy ' under the name of " Nantilns 

 dorsalii^ (var. y), Phill.," as being, at the time he wrote, in the collection of the 

 Royal Dublin Society. It now forms part of the general collection of fossils in the 

 Dul)lin Museum of Science and Art, and is labelled " Kildare." It seems to have 

 been more nearly perfect when M'Coy described it, as he says " mouth nearly 

 circular, receiving the preceding whorl at its ventral [= dorsal] margin." The 

 rugose surface is referred to in his description, and this feature has been the means 

 of identifying the specimen. 



S LB-ORDEK— AMMONOIDE A. 

 Jrl„,n7//— GL YPHIOCER ATID^ . 



Genus Biiancoceuas, Hi/att (not Sfeinmann), 1883 (emend. Holzapfel, 188l>). 

 liuANCocEKAS oKNATissiMUM, L. G. de Konluck, sp. Plate XXXVII, figs. 1 a — c. 



1881. GoNiATiTEs ORNATissiMus, L. G. (Ic Konincli. Sur quelques cephalopodes 



uouveaux dii calcaire carbonifere de 

 rii-lande. Ann. Soc. geol. de Bclg., 

 torn, ix, Memoires, p. 53, pi. vi, 

 figs. 4, 5. 



1899. Beancocebas ornatissimum, G. C. Cricl-. Ann. and Mag. Nat. Hist., 



ser. 7, vol. iii, p. 453. 



'Synops. Carb. Foss. Ireland,' 1844, p. 23. 



