PLATE XLIII. 



GLrPHIOCERAS (s.-g. MUENSTEEOCERAS) ELLIPSOIDALE, G. C. Crick. 



Fig. 1 a. Lateral view of the type specinieu. 1 b. Front view of tlie same. 1 c. Suture-line from 

 another specimen. Dublin Museum of Science and Art. Fig. 1 a. Kildare (exact locality in the 

 county unknown.) Fig. Ic. St. Doulagh's. (Page 194.) 



Gltphioceras (s.-g. Sphenoceeas) steiattjm, /. Sowerby, sp. 



Fig. 2 a. Lateral view of a fine sjjecimen with remains of the test, showing the characteristic 

 ornamentation ; the sutures and a constriction are also well displayed. [Drawn from a specimen in the 

 British Museum from Derbyshire (No. 33,451) ; this is intended to supplement the very defective 

 Irish specimens figured on PI. XLII, the only ones available.] 2 6. Suture-line of this species ; the 

 lobes and saddles are made much too obtuse in this figure (compare 2 a), which is copied from the 

 figure of Sowerby's type specimen ('Cat. Foss. Ceph., British Museum,' pt. 3, 1897, p. 168, fig. 78). 

 (Page 160.) 



Gltphioceras (s.-g. Muensteroceras) obesum, sp. uov. 



I'ig. 3 a. Lateral view of the type specimen distorted into an elliptical form in which the longer 

 diameter is nearly at right angles to the aperture. 3 b. Front view of the same, showing the sutures. 

 3 c. Suture-lines of the same, showing the invagination of the peripheral lobes. (Page 196.) 



Glyphioceeas, sp. 



Fig. 4 a. Lateral view of the cast of a very small individual. 4 6. Front view of the same. Gregg 

 (Nobber). Dublin Museum of Science and Art (" Griffith Collection "). (Page 209.) 



Gltphioceras (s.-g. Beyeichoceeas) teuncatum, /. Soiverby, sp. 



Fig. 5 a. Peripheral view of a small specimen. B'b. Lateral view- of the same, showing doubly 

 curved deep constrictions on the cast ; fragments of the smooth test are also present. Ballycahane. 

 Dublin Museum of Science and Art (Geological Survey Collection — No. 2963). (Page 165.) 



