SPHENODERIA. 57 



Penard, although differing considerably both in form 

 of the test and of the aperture from the other members 

 of the genus, may be appropriately included in it. 



S. pulchella Gr. S. West * belongs to the genus 

 Paulinella. 



Synopsis op the Bbpi'ish Species. 



Section A. — Aperture linear. 



Test more or less globular, formed of numerous circular or 

 broadly-oval scales. (]) S.lenta. 



Test ovoid, formed of four transverse rows of oval scales. 



(2) 8. fissirostris. 



Test small, ovoid, compressed; each broad face formed 

 principally by two large oval plates. (3) 8. macrolepis. 



Section B. — Aperture circular. 



Test ovoid, not compressed, formed of circular or broadly- 

 oval scales; aperture Laving a thin dentate lip. (4) 8. dentaia. 



1. Sphenoderia lenta Schlumberger. 

 (Plate XLII, figs. 2-18 ; and figs. 132-136 in text.) 



Sphenoderia lenta 



ScHLUMBEEGBB in Ann. Sci. nat. (3) III (1845), p. 256. 

 Eheenberg in Abh. Akad. Berlin, 1871 (J872), p. 236. 

 Lbidt (pars) Freshw. Rhiz. N. Amer. (1879), pp. 229-282, 290, 292, 



pi. xxxiv, ff. 25-33, 35-39, 41; in Proc. Acad. Philad. 1879, 



p. 163. 

 Hitchcock Synops. Prestw. Rhiz. (1881), pp. 40-41. 

 TABANEKin Sitzber. bobm. Ges. Wiss. 1881, pp. 224, 235. 

 Penaed in Mem. Soc. Geneve, XXXI, 1, ii (lb90), pp. 183-184, pi. x, 



fl. 25-29 ; in Jabrb. nassaix. Ver. JSTaturk. XLIII (1890), p. 72 ; in 



Rev. Suisse Zool. IX (1901), p. 238 ; op. cit. XIII (1905), p. 603 ; 



XVI (1908), pp. 462, 466; Faune Rbiz. Lemaa (1902), pp. 520-523, 



7 figs.; Sarcodines grands Lacs (1905), pp. 108, 117 ; Sarcodines in 



Cat. Invert. Suisse (1905), pp. 107-108 ; in Proc. Roy. Soc. Edinb. 



XXV (1905), pp. 595, 597;. in Rev. Suisse Zool. XVI (1908), pp. 



462, 466. 

 Cash in Trans. Mancb. Micr. Soc. 1891 (1892), p. 52, pi. ii, f. 5. 

 Entz in Matb. Termesz. ertes. XV (1897), pp. 172, 176, 178; in Math. 



nat. Ber. Ungarn, XV (1899), pp. 183, 186, 188. 

 Dadat in Anb. Termesz. Fiizetek, XXI (1898), pp. 7, 9. 

 Etfbeth Einfacb. Lebensf., ed. 3 (1900), p. 268. 

 Lageeheim in Geol. Foren. Stockbolm Forb. XXIII (1901), p. 472. 



* ' Jrn. Linn. Soc./ Zool,, vol. xxix (1903), p. 115. 



