Tate — List of Irish Liassic Fossils. 
19 
14. — Lbda v-scripta, nov. spec., Plate I. fig. 5. 
Shell elliptical; anterior portion rounded, ventricose; posterior elongated, 
rostrated; ventral margin strongly arched; medial portion of shell ornamented 
by plications en chevron; the rostral and anterior extremities with oblique plaits. 
Geological Position. — Zone of “A. angulatus ” Waterloo, Lame. Very 
rare; {R. T.) 
15. — Leda Bronni, Andler , Neues Jarbuch f. Min., p. 642(1858). See Plate 
I. fig. 1. 
Nucula palmce , Quenstedt, Jura, t. 13, fig. 42, p. 116, non t. 23, figs. 
16.-17., t. 44., fig. 8. (1858). 
This species resembles L. subovalis of the Middle Lias, from which it is 
especially distinguished, as pointed out by Andler, in the greater gibbosity of 
the umbonal region. It is common in the Zone of “ Belemnites acutus ” at 
Ballintoy, and occurs in the inferior zones. I have recorded it in England 
from the Zone of “ Ammonites Angulatus ” at Marton, Lincolnshire. 
16. — Leda Quenstedti, nov. spec., Plate I. fig. 4. 
Nuaila inflexa, Quenst., Jura, t. xiii., fig. 41, p. no (1858). 
This species has been confounded by Quenstedt with L. galathea, d’Orbigny, 
a moderately common shell in the Middle Lias of England, France, and 
Germany, from which it is distinguished by its more robust and less inequi- 
lateral form, and -in the abruptly truncated posterior extremity. 
Geological Position — Zones of il A. planorbis' ” Garron Point, and (< A. 
angulatus ,” Island Magee, Co. Antrim {R.T.); Upper part Lower Lias, 
Ballintoy, Co. Antrim [P. T.) ; and Ofterdingen, Wurtemburg {Quenstedt.) 
17. Leda Renevieri, Oppel , Die Juraf., p. 95 (1857). See Plate I. fig 3. 
Nucula complanata, Quenstedt, Jura, t. 13, fig. 39 ; p. no (1858). 
The shell represented by fig 3, differs in a few particulars from the 
ordinary form of Z. tenuistriata, Piette, but may be a young state of that species. 
Quenstedt’s figure, which I have referred to, evidently represents the same 
species, which may be the one described by Oppel, in the following terms : 
Resembles Z. complanata , Goldfuss, but does not attain the same size, and 
the anterior prolongation is shorter.” 
Geological Position. — Zone of “ A. Bucklandi, ” Glynn, near Larne (P. T . ) 
Recorded by Oppel in the Zone of “A. angulatus” and by Quenstedt, from 
the upper part of the Lower Lias in Swabia. 
18. CUCULL;£A Grangeri, nov. spec., Plate I. fig. 12. 
Cucullcea cucullata, Portlock, Geol. Survey of Derry, p. 120. 
Shell ovate-rhomboidal, ventricose, rounded in front, and obliquely trun- 
cated behind, bluntly keeled from the umbo to the posterior angle ; umbones 
