. Appendix to the Manual of Mollusca of Woodward, : containing such recent and fossil shells as are not mentioned in the second edition of that work . 10 b Fig. 9. Shell of Clydonites co&tatus, Hau. Fics. 10a, 10b. Shell and sutural lobes of , Hau. Etymology, hludon, the surge, with the usual termination. Examples, Goniatites Eryx, Miinst; Ammonites delphino-cephalus, Hauer. Pigs. 9, 10. Shell, discoidal; sutures lobed; lobes entire, not crenulatedas in Ceratites. Distribution, Upper Triassic strata, Hallstadt and St. Cassia^in the Austrian Alps ; North-western Hi
. Appendix to the Manual of Mollusca of Woodward, : containing such recent and fossil shells as are not mentioned in the second edition of that work . 10 b Fig. 9. Shell of Clydonites co&tatus, Hau. Fics. 10a, 10b. Shell and sutural lobes of , Hau. Etymology, hludon, the surge, with the usual termination. Examples, Goniatites Eryx, Miinst; Ammonites delphino-cephalus, Hauer. Pigs. 9, 10. Shell, discoidal; sutures lobed; lobes entire, not crenulatedas in Ceratites. Distribution, Upper Triassic strata, Hallstadt and St. Cassia^in the Austrian Alps ; North-western Himalayas; 21 Cretaceous, 2 species described as Ceratites by DOrbigny. 11 MANUAL OF THE MOLLUSCA. 6. Ceratttes (see p. 197). Division II.—Sutures foliated Including the genera Ammonites (p. 197), Toxoceras, Ancylo-ceras* Scaphites, Helicoceras, and Turrilites (p. 200), Hamites,Ptychoceras, and Baculites (p. 201), and the following. Antsoceras (see p. 200), Pictet, 1854. Etymology, anisos, unequal; and ceras. Example, Hamites armatus, Sowerby. Shell at first growing in an open helicoid spire, afterwardsmore or less prolonged and reflected
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