VOL. XVf. (1) | BUCKMAN—GENUS C/NCTA 47 
Deslongchamps (op. cit. Pl. x figs. 4, 5) depicts similar 
forms which have acquired thickened margins. He also 
shews in Pl. xi, figs. 2, 4, rounded forms with much 
thickened margins—no doubt further developments of 
T. cor—which he says have been called 7. Rehmannz. 
But the type-figure of this species—Roemer, Verst. Nord- 
deutsch. Ool. Geb., Nachtrag, 1839, Pl. xviii, fig. 11— 
shews that 7. Rehmanni is not a Crncta: it has narrow 
deltidial plates, and a large beak. 
Cincta cor cannot yet be noted as a British species. 
2. CINCTA PERNUMMUS, S. Buckman, P|. V, fig. 22. 
1850. Terebratula numismalis; Davidson (non Valen- 
ciennes) Ann. Mag. Nat. History (2) V p. 436, Pl. 
xiii, fig. 16. 
1862. Terebratula (Waldheimia) numismalis; Deslong- 
champs (non Val.) Pal. frang. Terr. jur. Brach., p. 
a9. PL xiv, tip; 3." 
1907. Cincta pernummus, S. Buckman, Quart. Journ. 
Geol. Soc., Vol. LXIII, p. 342. 
Description -—Much wider than long, lenticular, thin, 
sharp edged, front just excavate in adult. Apical angle 
about 135. 
Remarks :—This is the broadest form of Czzcta known ; 
and it has not yet been found in England. 
Locality and Stratum :—‘ Evrecy, Calvados [Nor- 
mandy], at the base of the Middle Lias, with the first 
cymbian Gryphzas,’—Deslongchamps, pp. 88, 89. 
3. CINCTA NUMMUS, sp. z., Pl. V, fig. 21. 
cf. 1832. Terebratula numismalis ; Zieten (non Valenciennes) 
Verst. Wiirtt., Pl. xxxix, fig. 4, p. 52. 
1851. Terebratula numismalis; Davidson (non Valen- 
ciennes) Mon. Ool. Brach. (Pal. Soc.) Vol. I, Plow, 
fig. 4, only; p. 36. 
cf. 1878. Zeilleria numismalis; Bayle, Explic. Carte Géol. 
France IV, PI. ix, figs. 1-3. 
Description :—Broader than long ; lenticular, thin, sharp- 
edged, front truncate in adult. Apical angle about 122. 
1 A cast of this specimen is in the British Museum (Nat. Hist.) No, B 16768. Same 
specimen as figured by Davidson. 
