340 Professor T. Rupert Jones — 



Acroculia vetusta. 

 Fleurorhynchus aliforniis. 

 Modiola scalaris. 

 Strophalosia productoides. 

 Cyrtina heteroclyta. 

 Atrypa desquamata. 

 Atrypa aspera. 



Spirifera undifera. 

 Rhynchonella acuminata. 

 Rhynchonella cuboides. 

 Retepora prisca. 

 Eemitrypa oculata. 

 Smithin Penyellii. 

 Cyat/i ophyllum . 



"The above are only a portion of the species; for instance, of 

 Brachiopods, which are the leading fossils, I have collected con- 

 siderably more than 30 species, but I cannot give the exact number, 

 as Mr. Davidson is now revising the Devonian lists." Mi*. Whidborne 

 intends to publish a detailed list of the palaeontology of this interest- 

 ing Devonian quarry. 



4. PoLYOOPE Devonioa, sp. nov. Plate IX. Figs. 4a, 46, 4c. 

 Size : length, 2% inch; height, -^u-inch. 



This species, of which I have seen three specimens, closely re- 

 sembles Polycope simplex, J. and K. (" Monogr. Carbonif. Entom.," 

 1874, p. 54, pi. 2, fig. 1) ; but it is much too convex for that 

 species ; and it is too oval in outline for P. Burrovii, J. and K. 

 (J.OC. cit. fig. 2). These are but slight diiFerences ; we know not, 

 however, how much the animals may have diifered in their soft 

 parts. 



It has been objected by my friend the Rev. Professor J. P. 

 Blake, in '■' The Yorkshire Lias," 1876, p. 434, that in his opinion 

 our Palceozoic forms do not perfectly correspond with Polycope of 

 Sars. The Carboniferous may be far back to look for a direct 

 ancestor of a recent Entomostracon : but for the present, at least, 

 I do not see that we can do better than follow the plan we have 

 long adopted of referring the fossil valves to known genera on the 

 strength of their similarities, the soft organs not having been pre- 

 served. How very little one Palaeozoic Cyprid, of which the limbs 

 are preserved, differed from the existing forms, has been shown by 

 M. Charles Brongniart, in his elucidation of Palceocypris Edwardsii, 

 from the Coal-measures of St.-Etienne, " Annales des Sc, Geol." vii. 

 6, Art. 3, 1876. 



Polycope Devonica was discovered in the Middle-Devonian Lime- 

 stone of Lummaton, Devonshire, by Mi*. Whidborne ; and it occurs 

 in the same condition as its more abundant associate, Cyprosina 

 Whidbornei. 



5. Lkpebbitia? dorsalis (Richter). Plate IX. Figs. 8a and Sb. 

 Length, -^ inch ( = 2 ram.) . 



Among some specimens of fossil Eutomostraca, which my friend 

 Dr. Richter, of Saalfeld, kindly sent to me, in 1874, for examination, 

 together with the Entomides described in the " Annals Nat. Hist.," 

 ser. 5, vol. 4, p. 182, etc., September, 1879, is one marked " P. 

 dorsalis." This is here figured in our Plate IX. Fig. 8, but it bears 

 little resemblance to the Peyrichia dorsalis, Richter, " Zeitsch. d. 

 Deutsch. geol. Ges.," 1869, p. 774, pi. xxi. figs. 10-13, which there 

 looks something like Primitia Maccoyii, J. and H. 



The specimen before me is a small internal cast of a right valve, 



