2 GEOLOGICAL MEMOIRS. 



the Alpine 0. Giebeli, Zek, ; the Trigonue, Fimbria conliformis, 

 and the Echinoderms are remarkable for their fine state of pre- 

 servation. The beds at Aliaga (Teruel) are evidently coeval with 

 those of Morella, and are represented by Omplialia (Cerithium) 

 Luxdni, Yern. ; Panopxa irregularis, d'Orb. ; C'yprina cordiformis, 

 d'Orb. ; Protocardia Toseptrina, Yil. ; Trigonia ornata ; T. Ver- 

 neuili, Yil. ; Trigonia, spec. nov. (allied to T. crenulata, Lam.) ; 

 Cumllcea Moutoniana, d'Orb. ; Avicida, spec. nov. (allied to A. 

 anonuda, 8ow.) ; Plicatida placunea ; Odrea Aquila, 'Qrowgn. ; and 

 Caprotina Lonsdalei, Sow. Other species from the same pro- 

 vinces, as Ammonites consobrinus, d'Orb. : A. subfascicidaris, d'Orb. ; 

 Natica Coquandiana, d'Orb. ; Protocardia Hillana, Sow. ; and Ar- 

 tacon Studeri, Yil., may be referred to well-known Lower Creta- 

 ceous types. Two new and beautiful species of Trigonia, T. Baylei 

 and T. Deshayesi, come from the " Aptien " of Tosa. Cyprina Li- 

 geriensis, d'Orb., and Omphalia, spec, nov., nearly allied to 0. Kefer- 

 steini, seem to indicate comparatively more recent strata. The 

 fauna represented by the collection in question bears on the whole 

 a Neocomian, Aptien, and Gault faeies, like the Cretaceous faunae 

 of the North of France and of England, and of the South of Prance 

 and South-west of Switzerland. The Gosau strata, the Ilippurite- 

 limestones, and generally the Upper Cretaceous deposits of the 

 Austrian Alps, with their analogues on the south-west margin of 

 the Pyrenees, in Guadalajara and Zaragoza, as well as the Portu- 

 guese deposits described by the late Mr. D. Sharpe under the deno- 

 mination of " Subcretaceous " strata, seem to be completely wanting 

 in the provinces of Castellon and Teruel. [Couistt M.] 



On Fossil Lepadid^. By Professor Reuss. 

 [Proceed. Imp. Acad. Vienna, February 18, 1864.] 

 The number of living pedunculated Cirripeda described in Mr. 

 Darwin's monograph does not exceed 48 species, belonging to 11 

 genera ; and only 52 fossil species have at present been described, 

 of which 51 belong to the living genera ScaJpellum' and Pollicipes, 

 and but one to the extinct genus Loricida. The Lepadidce seem to 

 rank first in geological antiquity among the Cirripeda, three species 

 of Pollicipes appearing as early as the Jurassic period. Perhaps 

 even they could be traced to a far more remote period, if Plinmdites, 

 Barr., occurring in the Silurian rocks of Bohemia, prove to belong to 

 the Lepadidce. In the Cretaceous period the Lepadidce reached 

 their maximum development, 44 of the above-named 52 species 

 appearing in strata of that age. Only 5 species (3 of Scalpellum 

 and 2 of Pollicipes') have been found in Tertiary deposits, and 

 only 12 species (6 of Scalpellum and 6 of Pollicipes) are now living, 

 while all the other species described belong to genera not represented 

 in a fossil state. In general, the fossil Lepadidce are of rare and 

 local occurrence, and are seldom found well preserved. 



Three new species have recently been discovered in the Middle 



