80 DEVONIAN FAUNA. 



1. Edmondia Bodana, F. A. Bomer, s-p. Plate IX, figs. 5?, 8. 



I860. Caedinia Bodana, F. A. Romer. Beitr. Harzgeb., pt. 4, p. 163, pi. xxv, 



figs. 15 a, h. 

 1S62. Edmondia Bueltngtonensis, White and Whitfield. Proc. Boat. Soc. Nat. 



Hist., vol. viii, p. 301. 



1884. Caedinia? Bodana, Clarke. Neues Jahrb. f. Miu., Beil.-Band. iii, p. 379. 

 1883. Edmondia Buelingtonensis, Hall. Pal. N. T., vol. v, pt. 1, pi. Ixiv, 



figs. 19—29. 



1885. — — Hall. Ibid., pt. 1, No. 2, p. 390, pi. Ixiv, 



fig. 22, and pl. xcv, figs. 13, 14. 

 ? 1885. — SUBOTATA, Hall. Ibid., p. 389, pl. Ixiv, figs. 10, 18—21, 27, 28, 



and pl. xcv, figs. 9 — 12. 



Description. — Shell rather small, transversely oval, rather strongly convex. 

 Hinge-line unseen, but apparently about two-thirds the length. Anterior and 

 posterior margins roundly and evenly convex, slightly oblique. Inferior margin 

 long, slightly convex. Umbo apparently prominent, broad, rounded, and incurved, 

 situated at about the anterior fourth of the length. Lunule undefined. 

 Contour convex vertically, nearly flat transversely on the back, convex posteriorly. 

 Surface with about ten irregular undulations of growth, covered by numerous 

 finer lines, the ornament continuing strong on the posterior slope. 



Size. — Length 19 mm., height 12 mm., depth of one valve 4 mm. 



Localities. — In the Barnstaple Athengeum is one example from Kingdon's, 

 Shirwell, and one from Sloly ; in the Museum of Practical Geology one from 

 Braunton, and one from West Angle Bay, Pembrokeshire; in the Porter 

 Collection one from Roborough. 



Bemarhs. — The species seems distinguished by its almost regularly oval shape, 

 slight transverseness, comparative smoothness, and the absence of any posterior 

 angle on the back. 



Our figured specimen appears exactly similar to F. A. Romer's figure of his 

 Carclinia Bodana^ except that it is very slightly more transverse. 



It also seems perfectly like E. Burlingtonensis, White and "Whitfield, with 

 which Hall at first associated shells which he afterwards separated as E. subovata, 

 Hall, but which present so close a resemblance that it is hard to trace in his 

 various figures the slight differences which he points out. 



Affinities. — E. unioniformis, Phillips, sp.,^ which is de Koninck's type of the 

 genus, differs in being more circular. 



Leptodomus semisulcata, Sowerby, sp., as given by Phillips," is more ovate, 



1 1836, Phillips, ' Geol. Torks.,' vol. ii, p. 209, pl. v, fig. 18. 



2 1841, Phillips, 'Pal. Foss.,' p. 36, pl. xvii, figs. 57 a— e. 



