180 Jones AND Kitrxpy—On Carboniferous Ostracoda from Ireland. 
uncertain value that we have found it best to treat the most striking of these forms 
as ‘‘ species,” rather than as varieties, in which category we have placed them, now 
and again, in former notices and memoirs. 
9. Leperditia suborbiculata (Miinster). 
(Plate x1., fig. 11.) 
1830. Cythere suborbiculata,. Munster, Jarhb. f. Min. u. s. w., p. 65, No, 16. 
1865. Leperditia suborbiculata, Jones & Kirxpy, Ann. Mag. Nat. Hist., ser. 3, vol. 
xv., p. 407, pl. xx., figs. Ta—c. 
1885. 3 i, Jones & Kirxsy, Geol. Mag., dec. 3, vol. i1., p. 540; 
1886, Quart. Journ. Geol. Soc., vol. xlii., p. 510; 
1887, Proceed. Geol. Assoc., vol. ix., p. 504. 
This relatively rare species is one of the degenerate Leperditic, in which the 
chief superficial characteristics are obsolete. 
It has been found in the Mountain-Limestone of Bavaria, and of both the 
South and the North of England, and in the Lower Carboniferous series of both 
East and West Scotland. In Ireland it occurs in the Carland Shales. 
10. Leperditia Scotoburdigalensis (Hibbert). 
(Plate x1., fig. 12.) 
1836. Cypris Scotoburdigalensis, Hisperr, Trans. Roy. Soc. Edinb., vol. xiil., 
p- 179; Portlock, 1843, Report Geol. Lon- 
donderry, p. 316. 
1844. Cythere arcuata (?), seutu- M‘Coy, “Synops. Char. Carb. Foss. Ireland,” 
lum, &C., pp. 165, &c., pl. xxiii., fig. 9, &e. 
1861. Cypris Scotoburdigalensis, Saurnx, Mem. Geol. Surv., Expl. Sheet 32, p. 
145. 
1862. Cythere vel Cytheropsis Jonns, ‘‘ Monogr. Foss. Esth.,” Pal. Soc., p. 119. 
Scotoburdigalensis, 
1863. Leperditia Scotoburdigal- Jonzs & Kirxsy, Rep. Brit. Assoc. for 1863, 
ensis, Trans. Sections, p. 80; 1863, Geologist, vol. 
vi., p. 460; and L. Okeni, var. Scotoburdiga- 
lensis, 1866, Ann. Mag. Nat. Hist., ser. 3, 
vol. xvili., pp. 35, 44, 45, &e. 
1865. Leperditia Okeni, “small Jones & Kirxsy, Ann. Mag. Nat. Hist., ser. 3, 
variety,” vol. xv., p. 406. 
