MYOPHORIA. 93 



Bemarhs. — It is very doubtful whetlier this shell should be included in our 

 list, the five Devonshire specimens being so poor as to be almost undecipherable. 

 The shells figured appear to belong to the Infra-carboniferous of Ireland. 



Keferstein united Tellina or Gardinia infiata, F. A, Roraer, with G. trapezoidalis, 

 r. A. Romer. These Beushausen in 1884 again separated into three species, 

 calling Keferstein's ScJi. inflatus by the name 8ch. Kefersfeini. It appears to me 

 thatBeushausen's figure of Sch. Kefersteini is almost exactly like Romer's figure of 

 G. trapezoidalis and Romer's first figure of T. inflata, while his figure of Sch. inflata 

 seems more like Romer's second figure and Keferstein's. To the latter of these 

 one of our specimens is very similar; and a second, which is not figured, equally 

 resembles the former. Our own material was insufficient to prove anything, but 

 as other species of the genus are evidently liable to much variation, I was led to 

 the conclusion that the balance of probability was on the side of Keferstein's view. 

 It is interesting, therefore, to find that in his later work Beushausen has reversed 

 his former judgment, and reunited all three as M. inflata, though at the same 

 time adding another form, which seems to me also to be identical. 



Axinus niiculoides, M'Coy, though much smaller, may perhaps be the young or 

 a dwarfed variety of the same species. 



2. Myophoeia deltoidea, Phillips, sp. Plate X, figs. 5 — S. 



1811. Cypbicaedia deltoidea, Phillips. Pal. Foss., p. 37, pi. xvii, fig. 59. 

 1842. NrcuLiTEs Chemungensis, Conrad. Journ. Acad. Nat. Sci. Philad., vol. 



viii, p. 247, pi. xiii, fig. 13. 

 1842. — ADPHESSA, Conrad. Ibid., p. 248, pi. xv, fig. 4. 



? 1843. Cypeicaedia ? ehombea, Rail. Geol. Surv. N. T., Eept. 4th Dist., p. 291, 



pi. cxxxix, figs. 2, 3. 

 ? 1844. Axinus ohbiculaeis, M'Coij. Syn. Carb. Foss. Ireland, p. 64, pi. viii, 



fig. 28. 

 1844. — deltoideus, M'Coy. Ibid., p. 63. 

 1855. Anodontopsis deltoideus, If-Coy. Brit. Pal. Poss., p. 396. 

 ? 1863. CuETONOTUs ELEGANs, Salter. Quart. Journ. Geol. Soc, vol. xix, p. 495, 



figs. 3 a, h. 

 1870. ScHizoDus ADPEESsus, Hall. Prelim, Notice Lamell., pt. 2, p. 95. 

 ? 1870. — EHOMBEUs, Hall. Ibid., p. 95. 



1883. Cytheeodon adpeessus, HaU. Pal. N. T., vol. v, pt. 1, plates, pi. Ixxv, 



figs. 3—9. 

 P1883. — EHOMBEUS, J^o//. Ibid., figs. 19— 23. 



1883. — QUADEANGULAEis, Hall. Ibid., figs. 31 — 36. 



1883. — Chemungensis, Hall. Ibid., figs. 37—40. 



