part 4] jUEASsic cheojs'ology : lias. 317 



Gleviceras, genotype, G. glevense j^aratjpe (p. 289, PL 

 XXVIII, %. 2). 



Gleviceras glevense, holotype. 



T.d. P. 289. 



T.f. PL XXYIII, fig. 1. 



T.l. Cheltenham (Gloucestershire). 



Hor. Lower Lias Shales [above oxynotuin]. 



Bate, [Deiran, Gleviceras ?/]. 



Coll. Author. 



Foi-m. 128, 51, 26, 14. 



GuibaliceraSy Genotype, Am. cjuihaliamis D'Orbigny 

 (p. 293). 



Leptaleoceras, G-enotj^pe, L. lepium holotype (p. 284). 



Leptaleoceras leptum. 



T.d. P. 285. 



T./. PI. XXVI, fig. 1. 



T.l. South Petherton (Somerset). 



Kor. Middle Lias Marlstone [Rock- Bed]. 



Date, [Domerian. pve-gibbosa^. 



Coll. Author, No. 1113. 



Form. 66, 24, 16, 52. 



Microderocei'Gs depressum. 



T.d. P. 303. 



T.f. PL XXX, fig. 1. 



T.l. Barrow Gurney (Somerset). 



Hor. Barrow Beds of Lower Lias. 



Bate, [Mercian-Ijymian, post-btrcTi-i]. 



Coll. Author, No. 1280. 



Form. 75, 29, 32, 47. 



Microderoceras inflatuxn. 



T.d. P. 305. 



T.f. PL XXVIII, fig. 3 ; PL XXIX, fig. 1. 



T.l. Barrow Gurney (Somerset). 



Hor. Barrow Beds of Lower Lias. 



Bate, [Mercian-Lymian, post- 6 ircTii]. 



Coll. Author, No. 1281. 



Form. 64, 34, 50, 45. 



Microderoceras rhodanicuxn. « 



T.d. Dumortier, 1869, vol. iii, p. 66, Am. heberti. 



T.f. Ibid., PL viii, fig. 5. 



Nom. P. 305. 



T.l. Saint-Fortunat, South of France. 



Hor. Lias moyen, zone a la belemnites clavatus, Couches 



a Am. armatus. 

 Date, [Eaasayan, leckenbyi t]']. 

 Coll. Dumortier. 

 Form. T. 74. 32, 29, 45. 



