334 DK. WHEELT0N HIND ON [A-Ug. I9O3, 



24. On a New Species of Solenopsis \_Solenomorpha~] jrom the 

 Pendleside Series o/Hodder Place, Stonyhtjrst (Lancashiee). 

 By Wheelton Hind, M.D., B.S., F.R.C.S., P.G.S. (Read 

 March 25th, 1903.) 



ISolenomorpha, gen. nov. 



Solen, pars, Goldfuss, 1832, in H. von Dechen's transl. of the 2nd ed. of De la 

 Beche's ' Manual of Geognosy' p. 531. 

 „ Goldfuss, 1840, ' Petrefracta Germanise ' vol. ii, p. 276. 

 „ Portlock, 1843, ' Eep. Geol. Londonderry, &c.' p. 441. 

 Solenopsis, M'Coy, 1844, ' Syn. Carb. Liraest. Foss. Ireland ' p. 47. 



W. H. Baily, 1862, Explan. Sheet 127, Mem. Geol. Surv. Irel. p. 9. 

 Clidophorus, H. B. Geiiiitz, 1866, ' Carbonforraation u. Dyasin Nebraska' p ; 25. 

 Solenopsis, F. V. Hayden, 1871, Final Eeport of U.S. Geol. Surv. in Nebraska, 

 p. 223. 

 L. G. de Koninck, 1885, Ann. Mus. Eoy Hist. Nat. Belg. vol. xi, p. 88. 

 ,, Fischer, 1887, ' Manuel de Conchy liologie' p. 1112. 



R. Etheridjre, Sen., 1888, 'Brit. Foss. vol. i, Pal.' p. 291. 

 „ S. A. Miller, 1889, 'North American Geology & Palaeontology' 



p. 512. 

 ,, Beushausen, 1895, Abhandl. Konigl. Preuss. Geol. Landesanst. n. s. 



pt. xvii, p. 216. 

 Hind, 1900, ' Monogr. Brit, Carb. Lamell.' pt. v, p. 412 (Pal. Soc. 

 vol. liv). 



Observations.— In 'Nature,' vol. lxvii (1903) p. 559, Prof. T. D. A. 

 Cockerell points out that the name Solenopsis was adopted in 1841 for a genus 

 of ants, and therefore must not be used for a genus of Mollusca ; he suggests 

 Solenomorpka. It is curious that the name has not been challenged since 1844. 



Solenomorpha major, sp, nov. (Fig. 1, p. 335.) 



Specific characters. — Shell above the medium size, trans- 

 versely elongate, ovato-lanceolate-truncate, very inequilateral, broad 

 and convex in front, narrowed and compressed posteriorly, only 

 slightly convex from before backward, more so from above downward. 

 The anterior border is rounded, the inferior border prolonged and 

 elliptically curved, the posterior short, bluntly obliquely truncate. 

 The hinge-line is curved in front, long, and almost straight 

 posteriorly. The umbones are obtuse, and placed in the anterior 

 fifth of the valve. There seems to have been an elongate, narrow 

 escutcheon. 



Interior. — The anterior adductor-scar is large and rounded. 

 Other characters and the hinge unknown. 



Exterior. — The shell is ornamented with fine, close, concentric 

 lines of growth, which follow the contour of the valve. 



Dimensions. — Antero- posteriorly = 136 millimetres ; dorso- 

 ventrally=42 mm. ; gibbosity of valve = 5 mm. 



Horizon and Locality. — Shales of the Pendleside Series, River 

 Hodder, Hodder Place, Stonyhurst (Lancashire). 



Observations. — This beautiful specimen was found by the 

 Rev. Charles Hildreth, S.J., who has most kindly presented it to 



