161 
Dimensions. — The average dimensions of the specimens sent me by 
Mr. W. B, Clarke are these — nine millimetres long by sixteen millimetres 
broad. The number of longitudinal ribs is about ninety. 
Horizon and Localities . — This species is not uncommon in the upper 
beds of the Carboniferous Limestone at Vise ; and near Glasgow, in Scotland ; 
near Cork, in Ireland ; and near Settle, in Yorkshire. Mr. Etlieridge cites it 
as abundant at Cracow, Queensland ; and Mr. W. B. Clarke found it in a 
brownish- grey limestone at Burragood, on the Paterson ; Fallal, on the 
Gwydir; and between tlie Kama and Bungog, New South Wales. 
Genus — STROPHOMBNES, Rafinesque. 
Stropiiombnes analoga, J. Dhillips.^ 
PI. IX, Fig. 3, and PI. XI, Fig. 7. 
Droducta analoga, 
Leptccna angosa, 
„ distorta, 
Or this analoga, 
Leptmna depressa, 
J. Phillips, 1836, Gleol. Yorkshire, II, p. 215, pi. 7, fig. 10. 
Fischer de Waldheim, Oryct. Moscou, p. 143 (non Dalman). 
J. Sowerby, 1840, Min. Conch., VII, pi. 615, fig. 2. 
Portlock, 1843, Eept. G-eol. Londonderry, p. 457. 
L. G-. de Koninck, 1843, Descr. Anim. Foss. Terr. Garb. Belg., 
p. 215, pi. 12, fig. 3 (non Sowerby). 
McCoy, 1844, Synop. Carb. Foss. Ireland, p. 117. 
Idem, 1844, ibid., p. 117. 
Idem, 1844, ihid., p. 117, pi. 18, fig. 12. 
Leptccna depressa (partim), Bronn, 1848, Nomenclator Pal., p. 635 (non Sowerby). 
Stropliomena depressa, A. d’Orbigny, 1850, Prod. Pal., I, p. 145. 
J. Morris, 1854, Cat. Brit. Foss., p. 136. 
Idem, 1854, ihid., p. 137 (non Sow.). 
Idem, 1854, ihid., p. 137. 
McCoy, 1855, Brit. Pal. Foss., p. 453. 
Idem, 1855, ihid., p. 453. 
Idem, 1855, ihid., p. 453. 
Leptagonia analoga, 
„ depressa, 
,, multwugata. 
Leptccna analoga, 
„ depressa, 
,, distorta, 
Leptagonia analoga, 
„ distorta, 
„ multirugata, 
’ [See also Stroiihomena rho7nboidalis, var. analoga, R. Etheridge, Junr., GeoL & Pal. Q’land, 1892, 
p. 245, t. 12, f. 8, 9, t. 40, f. 6.— W.S.D.] 
