326 Revieics— Geological Survey of Canada. 



represented by two already described species, and a new species (not 

 named) near to H. canaJiferum (Oppei). Four species of Oppelia 

 are recorded; one of these is stated to be new (but not named), 

 and described as near to 0. hectica (Eeinecke). Neumayria is 

 represented also by four species, one of which (N. Kohyi) is new and 

 closely allied to Neum. Franciscana, Fontannes. To this genus M. 

 Choffat assigns the specimen which Sharpe doubtfully referred to Amm. 

 Boucaultianus, d'Orbigny. The upper part of the Montejunto beds 

 has yielded some very small specimens of OlcostepJianus. For the 

 genus Perisphinctes, which is numerously represented, the author 

 adopts the classification of Sutner and Steinmann ; more than forty 

 species are recognised, seventeen of which are described and named 

 as new. Of the ten species which are recognised as belonging to 

 Aspidoceras, one is new [A. Lusitanicum). Peltoceras is represented 

 by two species, one of which is considered to be new, but is not 

 named. A specifically indeterminable example and a few small 

 specimens are referred to Zittel's genus Simoceras, whilst the genus 

 Hoplites is represented by the new species H. Guimaraesi. Aptychi 

 also have been found. 



The Cabago beds exhibit a decidedly Oxfordian facies ; their 

 Ammonite fauna corresponds to that of the transveisarius-zone, the 

 cordatus-zone being represented by about 200 metres of limestones, 

 devoid of Ammonites, separating these Ammonite-bearing beds from 

 the underlying Callovian rocks. 



The strata at the base of the Montejunto beds for a thickness of 

 10 metres yield Lamellibranchs which suggest affinity with those 

 of the Cabago beds below ; but their Ammonite fauna is comparable 

 rather with that of the himammatus-zone. The Ammonite fauna of 

 the rest of the beds presents a mixture of forms belonging to the 

 himammatus- and tenuilobatus-zones, thereby resembling the fauna 

 of the himammatus-zone in Central Europe. It possesses a character 

 more Mediterranean than that of Swabia (S. Germany) and of 

 Argovia (Switzerland) ; but cannot be regarded as the typical 

 Mediterranean facies of this zone ; this is found further to the 

 south, in Algarve (Portugal). 



The Ammonite fauna of the Abadia series is referable to that of 

 the temdlobatus-zone ; the Ammonite-bearing beds do not rest upon 

 Montejunto beds, but are separated from them by strata having a 

 thickness of nearly 400 metres. 



M. Choffat deserves our best thanks for so fully describing this 

 rich and intei-esting fauna, which is amply illustrated in the accom- 

 panying twenty excellent phototype plates. G. C C. 



III. — Geological Survey of Canada, Alfred E C. Selwtn, F.R.S., 

 Director. ■ Annual Report (New Series) : Vol. V. 1890-91. 

 (Ottawa : S. E. Dawson, 1893.) 



CONSIDERING the wide field embraced in the range of the 

 Geological Survey of Canada, which extends across the 

 continent from the Atlantic to the Pacific, one is not surprised at 

 the bulk of the Annual Report, which now appears in two parts, 



