mVEBTEBRATA. 297 



Etheridge, Robert, jun. Notes on Carboniferous Lamellibranchiata 

 (MoDomyaria). Geol. Mag. dec. 2, vol. i. pp. 300-306, pi. xiii. 



Describes and discusses tbe synonymy and affinities of tbe following 

 species of Lamellibranchiata from the Carboniferous rocks of Scotland : 

 — Pecten Soiverhn, Avkulopecten oryza, A. ellipticus, and Posidonomya 

 corrugata. The author identifies P. Sowerhii with P. Valdaicus and 

 P. hathus. Lists of localities are given for all the species. H. A. N. 



. Palaeozoic Starfishes. Geol. Mag. dec. 2, vol. i. p. 432. 



llefers to the occurrence of Cribellitcs carbonarius in sandstone of 

 the Carboniferous Limestone Series at Shilbottle, near Alnwick. 



Observations on Chcetetes tumidus, Phillips. Ann. Nat. Hist. 



ser. 4, vol. xiii. pp. 194, 195, pi. xi. figs. 1-3. 



Records the results of investigations on this species, and points out 



that the corallum often exhibits small areola?, where there are only a few 



of the ordinary calicos, or where there are only minute tubuli. The 



undoubted existence of tabula) is also noted. H. A. N. 



Observations on a few Graptolites from the Lower Silurian 



Recks of Yictoria, Australia, with a further Note on the Structure 

 of Ceratiocaris. Ann. Nat. Hist. ser. 4, vol. xiv. pp. 1-10, pi. iii. 

 Records the occurrence of the following species: — Tetragraptus hryo- 

 noides, T. quadribrachiatus, Phyllograptus typus, Loganograptus Logani, 

 Climacograptiis, sp., Diplograptiis miicronatus, D. pristis, Didymograp- 

 tus (?) fruticosus, D. nitidus, I). Pantoni, Graptolitlius latiis, and Grapfo- 

 lithus, sp. Also notes his discovery of delicate gill-feet attached to the 

 under-surface of the terminal and penultimate segments of the abdomen 

 of Ceratiocaris, as seen in a specimen from the Upper Silurian of 

 Lesmahagow. H. A. N. 



Favre, E. Sur la classification des Ammonites. [Classification of 

 Ammonites.] Bull. Soc. Geol. France, 3 ser. t. i. pp. 353-355. 

 Abstract. 



The classification, of which a tabular abstract is given, is founded on 

 the researches of Suess, Zittel, Keferstein, and Waagen. The Trigo- 

 nellites is considered not an operculum, but an organ for the pro- 

 tection of nidimentary glands of the female Ammonite. The classifica- 

 tion is based on this assumption and on the relative dimensions of the 

 last chamber with reference to the presence or absence of the remark- 

 able appendages which prolong the sides of the opening, and to the 

 shape of the latter. These appendages are regarded as protecting the 

 head and, more particularly, the eyes of the animal. G. A. L. 



Fischer, P. Sur les fossiles des iles du Cap Vert, rapportes par 



M. Cessac. [Fossils of Cape-Verd Islands.] Compt. Rend. 



t. Ixxviii. pp. 503-506. 



The beds whence these fossils were obtained (in all the islands of the 



archipelago except Fogo) were supposed to bo Tertiary by Darwin. 



The author, on palajontological grounds, believes them to be Quater- 



