]<tr. CAKBONIFEROrS CEPHALOPODA OF IRELAND. 



Glyph loCEKAs (Muexstkkockkasj iii;i;.vi m, sp. nov. Plate XLIII, figs, o a — c 



Dcfcrlptiuii. — Shell siibglobose, reudeied elliptical by pressure, the louger 

 (antero-postcrior) tliameter lueasuriBg 112 mm., the shorter 100 mm. ; greatest 

 thickness at the umbilical margin, about one-half of the shorter diameter of the shell ; 

 height of outer Avhorl rather less than one-half of that diameter ; inclusion almost 

 complete. Outer whorl indented to about two-fifths of its height by the preceding 

 whorl. L'mbilicus proportionally small, al)out one-fifth of the smaller diameter of 

 the shell, with subangular margin. Periphery at first very broadly rounded, but 

 becoming subtruncate in the adult shell as the aperture is approached. Inner area 

 narrow, slightly concave. 



Body-chamber occupying at least an entire volution. Chambers shallow. 

 Suture-line as in PI. XLIII, fig. o c. 



Test quite smooth, with only faint lines of growth, which may be seen here and 

 there proceeding from the mnbilicus. Xo distinct intlications of constrictions can 

 l)e seen, but the surface of the cast is badly preserved and erodeel in places, and they 

 may thus have been obliterated. 



Dimensions. 



Large specimen in the Collection of Mr. Josepli Wris;ht, F.G.S., 

 Belfast. 



Diameter of shell (long) . 112 mm. . (short) 100 mm. 



„ umbilicus (long) . 21 ,, . ,, 18 ,, 



Height of outer whorl . . -18 ,, 



„ above preceding whorl . 32 ,, 



Thickness at umbilical margin . 53 „ 



AlJiiiitUa. — Gli/pltioccnis (Muenstcrocenis) ellipsoidulf has Ijeen compared with the 

 present species under the description of the former. 



Iicinarkif. — The large individual representing the present species was obtaineil 

 in the quarries of Little Island, and forms part of Mr. Joseph Wright's small but 

 interesting collection from the neighbourhood of Cork. 



Localitij. — Little Island, near Cork. 



CxExrs G.vsrijiiMKHAs, liijutt, iSSo (emend. Karpinsky, l8iK»). 



GAsTiaocKKAs cii;ci.MXouosu.M, sp. nov. Plate XLIX, figs. 10, 11. 



Di'scription. — Shell rather small, infiated, um1)ilicat<.'d ; greatest thickness at the 

 margin of the aperture ; height of outer whorl about one-half of the diameter of the 



