INVERTEBRATA. 



305 



Lenzi and C. Syrmiense are also new. From the Congeria-beds near 

 Kertch the new species noted are Mactra glohula^ Cardium Tamanense, 

 C. Panticapceum, C. suhjpaucicostatum, G. Bayerni^ which occur with 21 

 others. E. B. T. 



•HoPKixsoN, John. On some Graptolites from the Upper Arenig 

 Eocks of Ramsey Island, St. Davids. Proc. Liverpool Geol. Soc. 

 Session 15, pp. 47-50. [Brit. Assoc] 

 Believes, from the abundance of dendroid forms of Graptolites in the 

 Lower Arenig rocks, that it is improbable that they are contempo- 

 raneous with the Skiddaw Slates, which are probably newer. 



C.E. DeR. 



HoxjzEATT LE Lehaye, Atjg. Listc dcs Bryozoaires du Poudingue de 



Ciply. [List of the Bryozoa of the Conglomerate of Ciply.] Ann. 



Soc. Mai. Belg. t. viii. Mem. pp. 36-38. 



A preliminary list of 164 species, of which 46 are undetermined 



species of known genera, aud 3 are species of probably a new genus 



allied to Biflustra. G. A. L. 



Hyatt, Prof. A. Evolution of the Arietidae. Proc. Nat. Hist. Soc. 

 Boston, voL xvi. pt. 2, pp. 166-170. 



In these notes on the evolution of one group of Ammonites, the 

 author attempts to trace a genetic relation between different subgenera. 

 He does not adopt the divisions of European palaeontologists, claiming 

 priority for his own names. A. (Psiloceras) planorhis is considered the 

 parent form ; from this species diverge in lines -forming a genealogical 

 tree. The old-age changes seen in Psiloceras are very slight ; they become 

 more distinct in Caloceras and succeeding series ; aud in the last 

 members of the series of Coroniceras they seriously affect the entire form 

 of the adult : in Asteroceras CoUenotii the adult has the same form as 

 the old Coroniceras triyonatum. E. B. T. 



jAiiES, U. P. Descriptions of Xew Species of Brachiopoda from the 

 Lower Silurian Rocks — Cincinnati group. Cincin. Quart. Journ. 

 Sci. vol. i. pp. 19-22. 

 Gives descriptions of three species of Brachiopods from the Cincin- 

 nati group of Ohio — OrtJiis cyclas (related to 0. emacerata and 0. mul- 

 tisecta), 0. crassa, comprising the form doubtfully described (by Mr. 

 Meek) under the name of 0. dentata, owing to a mistake in the spe- 

 cimens submitted for examination, and 0. (?) Morrowensis. H. A. N. 



. " Nullipores." Cincin. Quart Journ. Sci. vol. i. pp. 153, 154. 



Draws attention to the occurrence of certain enigmatical bodies, 

 forming crusts upon corals, crinoidal columns, <fec., in the Cincinnati 

 group, and suggestB that they may perhaps be of the nature of Nidll- 

 pores. II A. N 



— -. Descriptions of New Species of Fossils from the Lower Silu- 

 rian Formation — Cincinnati group. Cincin. Quart. Journ. Sci. 

 vol. i. pp. 239-242. 



1B74. X 



