RMzopodal 6^ene?-a Webbina awe? Vitrivvebbina. 327 



he had found in the Cretaceous beds of the Haute-Marne 

 Department. These three species of Wehbina were described 

 by d'Orbigny as to their form and superficial texture, but the 

 nature of the test, which is so important in groupini^ the 

 Foratninifera, seems to have been quite overlooked. These 

 specimens have been referred to as arenaceous forms * ; but 

 there are no grounds for tlie supposition. Terquem follows 

 in 1862 tj and records several species of Wehbina from the 

 Infra-Lias of the departments of the Moselle, of the Ardennes, 

 and from the east of Belgium ; but concerning these forms 

 also we are doubtful as to tlieir textural characters, and they 

 are perhaps mainly referable to Nuhecularia. Von Reuss in 

 1862 \ refers to Nuhecularia irregularis as occurring in tlie 

 " Speeton Clay " of North Germany. From his description 

 there is very little doubt that Reuss's specimens belong to 

 Vitriwehhina (the hyaline form of Webhina). Professors 

 Jones and Parker, in 1865 §, were the first authors to refer to 

 Wehbina as a subtype of Trochammina^ and they retain 

 Wehbina irregularis ^^ the type " with its varieties W. clavata 

 &c.," supposing these to be arenaceous. In 1866 Jones, 

 Parker, and Brady || described Wehbina as a subgenus of 

 Trochainmina^ and give tlie following as the general characters 

 of the genus : — " Shell adherent, comprising one or more 

 pyriform, oval, or round chambers, subarenaceous, smooth, 

 dirty white, or ot a deep rusty colour, and, when numerous, 

 arranged in a single irregular moniliform line, often branched." 

 At the same time these authors described a new species, 

 W. hemisphcerica^ from the Coralline Crag of {Suffolk. 

 Dr. H. B. Brady, in 1884 {op.cit. p. 66), treated Webhina as 



terrain cr(5tac6 inferieur du departement de la Haute-Marne," Meiu. Soc. 

 geol. France, s6r. '2, vol. iii. 1848, p. 250, pi. ii. tigs. 36 (right-hand figure) 

 and 37. 



* Brady, H. B., " Report on the Foraminifera dredged by II.M.S. 

 * Challenger ' during the years 1873-1876," Iteports of the "Scientific 

 Results of the Voyage of H.M.S. ' Challenger,' vol. x., Zoology (London, 

 1884), p. 348. 



t 'lerquem, 0., " Recherches sur les Foraminiferes de I'^tage moyen et 

 de l'6tage inferieur du Lias,'' M6m. II., M(5m. Acad. Imp. Metz, vol. xlii. 

 1862, pp. 455-459, pi. vi. figs. 15-19. 



X Reuss, A. E., " Die Foraminiferen des norddeutschen Hils uud 

 Gault,' Sitzuiigsb. d. k. Ak. Wi.^s. Wien, vol. xlvi. Abth. i. 1862 (1863), 

 pp. 30, 31. 



§ Parker, W. K., and Jones, T. R., " On some Foraminifera from the 

 North Atlantic and Arctic Oceans, including Uavis Straits and Baffin's 

 Bay," Phil. Trans. Roy. Soc. vol. civ. 1865, p. 435. 



II Jones, T. R., Parker, W. Iv., and Brady, H. B., ' A Monograph of 

 the Foraminifera of the Crag,' Part I., Palseontographical Society, 

 vol. xix. for 1865 (1866), pp. 25-27. 



23* 



