. Catalogue of casts of fossils, from the principal museums of Europe and America, with short descriptions and illustrations. Fossils. No. 539. Ancyloceras Andouli, Astier. The Ancyloceras was like an Ammonite partly unrolled, having its inner whorls not touching and the outer one produced at a tangent and bent back again. From the Lower Greensand, Cheiron, France. Size, 13 x 6. Price, $ No. 540. Ancyloceras Emerici, D'Orb. Portion lacking outer whorl. From the Upper Neocomian (Cretaceous), Barreme, France, and now in the private Geological Cabinet of Mr. Ward, Rochester. Size, 7x9. Price
. Catalogue of casts of fossils, from the principal museums of Europe and America, with short descriptions and illustrations. Fossils. No. 539. Ancyloceras Andouli, Astier. The Ancyloceras was like an Ammonite partly unrolled, having its inner whorls not touching and the outer one produced at a tangent and bent back again. From the Lower Greensand, Cheiron, France. Size, 13 x 6. Price, $ No. 540. Ancyloceras Emerici, D'Orb. Portion lacking outer whorl. From the Upper Neocomian (Cretaceous), Barreme, France, and now in the private Geological Cabinet of Mr. Ward, Rochester. Size, 7x9. Price, $ No. 541. Ancyloceras gigas, Sow. This magnificent and per- fect specimen (calledby Sower- by, Scaphites gigas,) is from the Lower Greensand (Cretaceous), Atherfield, Isle of Wight, and is now in the private Geologi- cal Cabinet of Mr. Ward, Rochester. Size, 18 x 12. Price, $ No. 542. Ancyloceras spinigenim, Sow. Woodward gives this species as the type of the genus. From the Gault (Lower Cretaceous), Folkestone, England, and now in the private Geological Cabinet of Mr. Ward, Rochester. Price, $ No. 543. Ancyloceras Tabarelli, Astier. From the Upper Neocomian (Lower Cretaceous), Barreme, France, and now in the private Geological Cabinet of Mr. Ward, Rochester. Price, $ No. 544. Aptychus ^ Meyer. The Aptychi (Trigonettites, Park,) were described by Meyer as bivalve shells and by Deslongchamps under the name of Munsteria. D'Orbigny and Pictet regard them as Cirripedes. Deshayes considers them as the gizzards of Ammonites; Coquand compares them with Teudopsis; Ruppell, Voltz, Quenstedt, and Zieten, regard them as the opercula of Ammonites. Woodward and the majority of English Geologists are of this last opinion, specimens having occasionally occurred in which the aperture of the shell was closed by the Aptychus. This specimen consists of two pairs, showing both sides. From the Lithographic limestone (Middle Oolite), Solenhofen, Bavaria. Price, $ No. 545.
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectfossils, bookyear1866
