IirrEBTEBRATA. 315 



without a byssal notch, equi valve, inequilateral, rounded in front and 

 behind; umbones almost central, not projecting over the elongated 

 and straight hinge -line ; shell without ears, marked with radiating 

 ribs. No ligamental pit or hinge-teeth, and no perceptible muscular 

 impressions. The author shows that a great number of species of 

 Daonella and Halohia have hitherto been indiscriminately placed to- 

 gether ; and he defines the following new species of these genera, all 

 from the Trias — Daonella Gumheli, D. BocJchi, D. obsoleta, D. Cas- 

 siana, D. Hichthofeni, D. Styriaca, D. BeyncJiif D. solitaria, D. elon- 

 gataj D. Tyrohnsis, D, Badiotlca, D. reticulata, B. tenuis, D.fluxa, D. 

 Hungarica, D. Taramellii, D. ohliqua, D. arctica, D. Lindstromi, 

 Halohia raristriata, H. plicosa, H. Nonca, H. amoena, H. Austnaca, 

 H. Suessi, H. eocimia, H. Charlyana, II. distincta, H. Celtica, H. faU 

 lax, H. superba, H. intermedia, H. Hochstetten, H. Hoeimesi, and H, 

 Halorica. H. A. N. 



Mojsisovics, Dr. E. vox. Die angeblichen Orthoceraten im alpinen 



Dogger. [The alleged Orthoceratites from the Dogger of the 



Alps.] Yerh. k. k. Geol. Reichs. pp. 33, 34. 



Shows that the fossils from the Jurassic strata of the Alps which 



have been referred to Orthoceras are really the phragmacones of 



species of Belemnites (Aulacoceras). H. A. N. 



. Diplojpora oder Gyroporella ? Yerh. k. k. geol. Eeichs. pp. 



236, 237. 

 Defends the view that Gyroporella is truly a synopsis of the pre- 

 viously founded Diplopora [see Giimbel, p. 299.] H. A. N". 



MoRcn, Dr. 0. Forsteningerne Tertiajrlagene i Danmark [Tertiary 

 Fossils of Denmark.] Meddelelse paa det lite Skandinaviske 

 Naturforskermode i Kjobenhavn. 



Lists of fossils which have been determined by the author, as well 

 from scattered vestiges of strata as from beds in place, are here ranged 

 under heads of localities. The present classification of the Tertiaries 

 being considered unsatisfactory, it is suggested to determine by 

 conchological characters the temperature of the sea of a given period, 

 and hence its antecedence to the glacial period. The following new 

 species are described — Bifrontia (Orhis) Pinyelii, Scala {Opalia^ 

 JoJinstruin, Ceritliium (Bittiwn) Vilandti, Turritella (Ilaustator) 

 Bechii, Siyaretus (Stomatia) pumilio, Valvatlna atlanta, Xylopluiga 

 Steenstrupi. H. M. 



Neumatr, Dr. M. Die Fauna der Rchichten mit Aspidoceras acan- 

 thicum im ostlichcn Theile der Mediterranon Provinz. [Fauna of 

 the Aspidoceras acanthicum Shales in the ¥j. part of the Mediter- 

 ranean Province.] Yerli. k. k. geol. Roichs. pp. 29, 30. 

 Discusses the fauna of the above-mentioned beds, with special 

 relation to the various forms of Ammonites, and the bearing of those 

 upon the '* descendenco theory." H. A. N. 



