EEPORT ON THE BRACHIOPODA. 41 



I have felt somewhat undecided with regard to the identification of this species. 

 Some specimens bear a certain resemblance to Waldheimia lenticularis, but Waldheimia 

 herguelenensis is a smaller shell, more ovate or regularly oval, and especially so in the 

 young and intermediate ages. I forwarded two examples for Ball's examination, and 

 he informs me, " I have carefully compared it with D'Orbigny's Waldheimia fontaineiana, 

 and feel more sure than ever of the correctness of my reference of his species to Wald- 

 heimia venosa. It is certainly not this fine species (Waldheimia herguelenensis)." I 

 consider myself justified, therefore, in regarding Waldheimia herguelenensis as a new and 

 undescribed form. I believe it, however, to be identical with that erroneously described 

 and figured by G. Sowerby at p. 359 (PI. XXI. figs. 99-101) of his Thesaurus Conehy- 

 liorum, 1846, as the Terebratula glohosa of Lamarck. The specimen he figured under that 

 name, said to have been taken from Lamarck's collection, was, I am assured, obtained in 

 Paris by Mr Cuming, and it is now in the British Museum. Sowerby seems, however, to 

 have gone rather far when he adds, " It agrees perfectly with the representation in 

 the Encyclopedia Methodique (tab. 339, fig. 2)." Still the foramen is not quite complete, 

 although Lamarck gives " foramine integro " as one of its characters. If we refer to 

 Lamarck's description of Terehrattda glohosa, and look at the figure in the Encyclopddie 

 to which he refers, we are at a loss to see the perfect agreement alluded to by Mr 

 Sowerby. The figure, which is not a very good one, represents a shell 68 mm. in length 

 by 54 mm. in breadth, and most approaches in size the Waldheimia venosa of Solander, 

 to which Lamarck's species has been more than once referred. As some uncertainty 

 must, therefore, prevail with reference to the species named Terebratula glohosa by 

 Lamarck, I would jDropose to call the shell under description and the one figured 

 by Sowerby in the Thesaurus Conchyliorum, Waldheimia herguelenensis, admitting at 

 the same time Waldheimia lenticularis as its nearest ally. 



Waldheimia Jlavescens, Val. apud Lam. (PI. III. figs. 10-12). 



Terebratula flaveseens, Val, apud Lamarck, Anim. sans Vert., vol. vi. p. 246, 1819. 



Terebratula dentata, ibid. 



Terebratula australis, Qiioy and Gaimard, Voyage de 1' Astrolabe, Zool., p. 551, pi. Ixxxv. figs. 1-5, 183-1. 



Terebratida recurva, ibid., p. 554, pi. Ixxxv. figs. 11, 12, 1834. 



Terebratula australis, G. B. Sowerby, Thes. Conch., parts 4 and 7, p. 349, pi. Ixix. figs. 25-33, 1846. 



Waldheimia australis, King, Men. of Permian Fossils, Pal. Soc, p: 145, pi. xx. figs. 11, 12, 1849. 



Waldheimia flaveseens, Dav., Brit. Foss. Bracb., Introduction Pal. Soc, vol. i. p. 64, figs. 6, 7, 1853. 



Waldheimia australis. Woodward, A Manual of tlie MoUusca, p. 216, figs. 113, 114, 1854. 



Terebratida australis, Gratiolet, Etudes anatomiques sur la Terebratula australe, Journ. de Concb., 



October 1857. 

 Waldheimia australis, Hancock, Phil. Trans. Eoyal Soc, vol. cxlviii., 1858. 

 Waldheimia flavescetis, L. Eeeve, Mon. of Terebratula, pis. i. and ii., 1861. 

 Waldheimia flaveseens, Dall, Amer. Journ. of Conch., vol. vi. part 2, p. 180, 1870; and Proc Phil. 



Acad. Nat. Sciences, p. 181, 1873. 



Shell longer than wide, ovate or subpeutagonal, l^roadest aljout the middle, straioht 

 (zool. chall. EXP. — PART I. — 1880.) A G 



