The Quarterly journal of the Geological Society of London . ptal sections drawn from this specimen. Plate III. Figs. 1-5. Development of the septum of Daetyliocevan commune. Figs. 2-5 are frcmi the specimen s]K)\\Ti,in PI. II. fig. 1. Adult septum. X 4-5. (Text-fig. 4.) 2. Septum at 2^ whorls. X 22. 3. Do. at 2^ whorls. X 25. 4. Do. at 1^ whorls. X 35. {The numbering of figs. 4 5. Second septum. X 40. (Text-fig. 6, p. 36.) j & 5 should be Almost adult septiim of TragnphyUnceras Josromhi (.1. Sowerby), from Lyme Regis. Diameter = 17 mm. X . , 7. Adult septum of Sphceroceras h
The Quarterly journal of the Geological Society of London . ptal sections drawn from this specimen. Plate III. Figs. 1-5. Development of the septum of Daetyliocevan commune. Figs. 2-5 are frcmi the specimen s]K)\\Ti,in PI. II. fig. 1. Adult septum. X 4-5. (Text-fig. 4.) 2. Septum at 2^ whorls. X 22. 3. Do. at 2^ whorls. X 25. 4. Do. at 1^ whorls. X 35. {The numbering of figs. 4 5. Second septum. X 40. (Text-fig. 6, p. 36.) j & 5 should be Almost adult septiim of TragnphyUnceras Josromhi (.1. Sowerby), from Lyme Regis. Diameter = 17 mm. X . , 7. Adult septum of Sphceroceras hfoiuiiriarti (J. Sowerby). from Sher-bf)rne. Diameter = 20 mm. X 2h. Plate IV. Figs. 1-3. Peritii^hinctes tripliratus, frtmi Market 1. Front view of an abnormal septum. Natural size. 2. Ventral view of a portion of an outer whorl. Natural size. 3. Last suture shown by this specimen. * Verbreitung & Lebensweise der Ammoniten Verhandl. Wien, 1912. p. 83. Quart. Journ. Geol. Soc. Vol. LXXIII, Pl. II. i/
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectgeology, bookyear1845
