. Catalogue des moulages de fossiles, des principaux musées de l'Europe et l'Amérique, avec de courtes descriptions et illustrations. Les fossiles. EEPTILIA. 65 n° 240. Placodus rostratus, Munst. Crâne. Dans cette espèce, les deux premières dents palatines sont relativement petites ; toutes les dents sont arrondies ; les incisives et les dents prémaxillaires series sont plus proches les uns des autres que dans le P. gig comme ; et l'os prémaxillaires est prolongée à un bec. Ce spécimen, de la trias (Muschelkalk) à Bayreuth, en Bavière, est dans le Bri- tish Museum. Taille, 8x7.- Prix, 1,75 $. Pterosaurians, no 241. Pterodactylus crassirostris, Goldf. S

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. Catalogue of casts of fossils, from the principal museums of Europe and America, with short descriptions and illustrations. Fossils. EEPTILIA. 65 No. 240. Placodus rostratus, Munst. Skull. In this species, the first two palatal teeth are relatively small; all the teeth are rounded ; the maxillary and premaxillary series are nearer each other than in the P. gig as; and the premaxillary bone is prolonged to a beak. This specimen, from the Muschelkalk (Trias) in Bayreuth, Bavaria, is in the Bri- tish Museum. Size, 8x7.- Price, $1.75. Pterosaurians, No. 241. Pterodactylus crassirostris, Goldf. Skeleton on slab. The Pterodactyle was one' of the most extra- ordinary of all the creatures yet discover- ed in the ruins of a primeval world. Col- lini, in 1784, was the first to investigate the characters of this strange animal; he con- sidered it a Fish. Blu- m e n b a c h decided it was a Bird; Sommer- ing, a Mammal; Spix, that it was intermedi- ate between Monkeys and Bats; Macleay, a „ link between Mammals and Birds; and Agassiz, a strictly marine Reptile. Cuvier, in 1800, determined the place and name it now holds. The P. c/rassirostris is distinguished by a very large head, a comparatively short neck, and a dental formula of U . Accordine; to the restoration of the ani- 5 ° mal by (ioidfuss, it would measure three feet from tip to tip of the Avings. This specimen, which is the most perfect ever found, was discovered in the Litho- graphic limestone (Upper Oolite) at Solenhofen, Bavaria, associated with the remains of Dragon-flies, and is now in the University Museum at Bonn, Rhine Valley. Size, 10 x 7. Price, $3.00.. No. 242. Pterodactylus rhamphastinus, Wagner. Skeleton, on slab. This fossil was found in the Solenhofen quarries (Up- per Oolite) in Bavaria, and belongs to the Museum of the University of Munich. Size, 13 x 10. Price, $3.25. No. 243. Pterodactylus spectabilis, Meyer. Skeleton, on slab. (Impression and relief.) The original was found at the same locality

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