132 CARBONIFEROUS CEPHALOPODA OF IRELAND. 



described are wider than higli, while in Aipoceras (see p. IIG) the reverse of this 

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

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

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

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

 Localiti/. — Near Cork. 



Incertse sedis. 



A specimen belonging to the family Solenocheilid^, but too imperfect for 

 specific identification, is interesting from its exhibiting what appears 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 

 crassilabrum, 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 whicli 

 might have established its identity with A. crassilahrnm. 



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

 dorsalis (var. y), Pliill.," as being, at the time he wa'ote, in the collection of the 

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

 Dublin Museum of Science and Art, and is labelled " Kildare." It seems to have 

 been more nearly perfect wdien M'Coy described it, as he saj^s " 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. 



Sub-order— AMMONOIDEA. 

 i^l,ift%— GLYPHIOCERATID^. 



Genus Brancocieras, Hyatt (not Stelnmann), 1883 (emend. Holzapfel, 1889). 

 Brancoceras ORNATissiMUjr, L. G. de Kon'uiclc, sp. Plate XXXVII, figs. 1 a — c. 



1881. GoNiATiTES OENATissiMus, L. G. clc Koniucli. Sur quelques cephalojiodes 



uouveaux dii calcaire carbonifere de 

 rirlando. Ann. Soc. geol. de Belg., 

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

 figs. 4, 5. 



1809. Beancoceras ornatissimum, G. C. Crlcl-. Ann. and Mag. Nat. Hist., 



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



1 < 



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



