Prof. E. Suess on the Recent Terebratulge. 385 



the whole of my passage (p. 204) : " T. frontalis (Midd. sp., 

 Beitr. Malac. Ross. ii. in Mem. Acad. Imp. de St. Petersbourg, 

 vi. p. 518, and llcise i. d. ausserst. Nord. u. Ost. Sibirien's, 

 1851, ii. ]). 2il. t. 18. f. 9-14), quasi the representative of T. 

 spitzbergensis in the North Pacific, has, on the contrary, a broader 

 shape, with a thick shell, and, as Middendorf's excellent figures 

 show, with a remarkable anterior position of the transverse por- 

 tion of the apophysis, seems to have united cardinal plates, as 

 the unpublished Terebratula Hoernesi of the Vienna tertiary beds 

 has. This species inhabits the south coast of the Sea of Ochotsk. 

 It is possible that this species is identical with T. transversa, Sow., 

 a species belonging to Tcrehratella according to Mr. Davidson, 

 but the habitat of which is as yet unknown." 



As I am no friend of critics, I do not intend to enter into 

 further objections against Mr. Reeve's paper, beyond mentioning 

 that the author was himself mistaken in citing Japan instead of 

 Java (in speaking of Terebratella rubella), and in counting Tere- 

 bratella labradorensis (only known from Labrador) among the 

 North European, and not among the American species. Nor do 

 I approve the altered generic position of several species, or the 

 uniting of T. minor with T. vitrea. T. euthyra, Phil., a species 

 also united with T. vitrea by Mr. Reeve, is no Terebratula at all, 

 but a true Waldheimia, as Mr. Reeve will see by a glance at 

 the figure of its loop in my German edition of Mr. Davidson^s 

 'Classification of Brachiopoda,' pi. 1. fig. 5. 



I do not hesitate a moment to acknowledge the value of the 

 interesting new facts brought forward by Mr. Reeve, but I hope 

 that, after having re-perused my paper, he will admit that all 

 these new facts do not show the " inconvenience of my philo- 

 sophical dissertations." They, indeed, only touch the chapter 

 regarding the distribution of species and genera; and although 

 if, e. gr., Waltonia Valenciennesii be indeed identical with Tere- 

 bratella Evansii, Argiope must be regarded as an endemic, and 

 not as a sporadic genus, still the conclusion remains wholly un- 

 shaken, " that the geologically old genera are sporadic, and the 

 younger ones endemic," — a conclusion already arrived at by a 

 great number of naturalists from the study of very different 

 divisions of the animal kingdom. All the other chapters are 

 wholly without reference to anything brought forward by Mr. 

 Reeve ; and I believe I have shown that the present bathy- 

 metrical distribution of Brachiopoda leads to some palajonto- 

 logical reflections which are not quite devoid of interest, and that 

 it is important to aim at those great general laws which govern 

 the multifarious crowd of forms and facts. 



The rapid progress of natural history depends materially on 

 the existence of sincere and true harmony between naturalists; 



