A monograph of the British fossil corals - kreidefossilien.de

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xxxviii BRITISH FOSSIL CORALS. 54. Genus Hydnophoea. Fischer de Waldlieim, Descrip. du Mus. Demidoff, vol. iii^ p. 295, 1810 ; Monticularia, Lamarck, Hist, des Anim. sans Vert., t. ii, p. 248, 1816. Corallum formed of irregular series of corallites, united by their walls, which are thick, compact, and constitute ridges, divided longitudinally, so as to represent rows of conical prominences, or monticulse. The cahcular trenches are transversal as well as longitudinal, and there is no columella. Septa nearly equal, and rising to the apex of the conical mural monticulse. General form sometimes massive and sub-globose or gibbous ; sometimes sub-explanate. Typ. sp., Hydnophora Bemidovii, Fischer, Oryct. du Gouv. de Moscou, pi. xx.vii. Section III.—ASTREIN^ DENDROIDiE. Corallum always increasing by lateral gemmation. The corallites segregate, and having an arborescent or fasciculate aiTangement. Septa regularly and delicately serrated ; those of the principal cycla always bearing pali. 55. Genus Cladocoka. {In parte) Ehrenberg, Corall. des Roth.Meeres, p. 85, 1834 ; Caryophyllia, Dana, Zoophytes, p. 3/8, 1846. Corallum arborescent, forming branched clumps. Corallites cylindrical, very long, and completely free laterally. Calices cii'cular, or almost so. Columella papillose. Pali well developed, and corresponding to all the septa, except those of the last cyclum. Sejjfa slightly exsert, nearly equal, granulated, and having their apex arched and dehcately serrated. Walls compact, with simple, granulated, or echinulated costse, and an incomplete epitheca, which often expands into cu'cular, horizontal leaves, extending to the neighboiu-ing coralhtes. Typ. sp., Cladocora cespitosa, Milne Edw. and J. Haime ; Madrepora flexuosa, Solander and Ellis, tab. s.xxi, figs. 5, 6. 56. Genus Pleurocora. Milne Edw. and J. Haime, Comptes rend, de I'Ac. des Sc, t. xxvii, p. 494, 1848. Corallum sub-dendi'oid. Corallites cylindrical, very short ; united by theu' basal part, and free towards their upper end. Columella, pali, and septa much as in the preceding genus. Walls compact, extremely thick, and never presenting any traces of an epitheca. Cost
INTRODUCTION. xxxix Section IV.— A.STREINVE AGGREGATE. Corallimi composite, massive, increasing by gemmation or by fissiparity, and in that case not presenting a linear mode of arrangement of the coralhtes, which are always completely united laterally, but remain m ell defined, and never lose their individuality, as in the confluent Astreina. 57. Genus Astrea. {Inimrte) Lamarck, Syst. des Anim. sans Vert., p. 3/1, 1801 ; Milne Edw. and J. Hairae, Comptes rend., t. xxvii, p. 494, 1848. Corallum massive, in general convex or sub-globose. Gemmation extra-calicular. Corallites tall. Caliciiles having a free, exsert, obtuse, circular margin ; fossida not very deep. Columella spongy, and not projecting at the bottom of the calicule. No pali. Septa complete, exsert, broad, and strongly dentated or lobated ; the largest of theh apical teeth near the columella ; their sides strongly granulated. Costm highly developed, and composed of lamellae ; in general perforated, and united by numerous dissepiments. Typ. sp., Astrea cavernosa, Milne Edw. and J. Haime, loc. cit., vol. x, tab. ix, fig. 1 ; Madrepora cavernosa, Esper, Pflanz. Suppl. Mad., tab. xxxvii ; Astrea argus, Lamarck, Hist, des Anim. sans Vert., t. xi, p. 2.59. 58. Genus Cyphastkea. Milne Edw. and J. Haime, Comptes rend, de I'Acad. des Sc, vol. xxvii, p. 494, 1848. Corallum massive, convex, and globose. Gemmation extra-calicular. Corallites united by a compact septal coenenchyma, the smface of which is strongly granulated, or even echinulated. Calicular rims as in the preceding genus. Columella papillose, and well developed. Septa lameUar near the w^all, but cribriform towards the columella, where they are formed by a series of obhque processes, representing a sort of lattice ; their cahcular teeth rather larger towards the cahce than near the walls. Tyi5. sp., Cyphastrea microphthoJma, Milne Edw. and J. Haime, Ann. des Sc. Nat., 3"' serie, vol. x, tab. ix, fig. 5 ; Astrea nucrophthalma, Lamarck, op. cit. 59. Genus Oulastrea. Milne Edw. and J. Haime, Comptes rend., t. xxvii, p. 49.5, 1848. Corallum massive and incrustatiug. Gemmation extra-calicular. Corallites low. Calices circular, with a free margin. Columella papillosd', and appearing to be formed by the inner apical teeth of the septa. No jmli. Septa with a crispate, denticulated, apical mai'gin, and echinulate sides. Cost(e also echinidatc and crispate. Typ. sp., Oulastrea crispata, Milne Edw. and J. Haime, Ann. des Sc. Nat., 3°" serie, vol. x, tab. ix, fig. 4 ; Astrea crisjmta, Lamarck, Hist, des Anim. sans Vert., vol. ii, p. 265.
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Page 13 and 14: INTRODUCTION. iii centre of the ram
Page 15 and 16: INTRODUCTION. v certain parts of th
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Page 19 and 20: INTRODUCTION. ix Sub-class 1. CORAL
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Page 23 and 24: INTRODUCTION. xiii 3. Genus Acantho
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Page 27 and 28: ; INTRODUCTION. xvii IS. Genus Plat
Page 29 and 30: INTRODUCTION. xix Aberrant Group. P
Page 31 and 32: INTRODUCTION. xxi 8. Genus Amphelia
Page 33 and 34: INTRODUCTION. xxiii 3. Genus Dkndra
Page 35 and 36: INTRODUCTION. xxv 5. Genus Ccelosmi
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Page 39 and 40: ; INTRODUCTION. xxix 23. Genus Pler
Page 41 and 42: ; INTRODUCTION. xxxi 30. Genus Hete
Page 43 and 44: INTRODUCTION. xxxiii 30. Genm Symph
Page 45 and 46: ;; INTRODUCTION. xxxv 44. Gentts Tr
Page 47: LNTRODUCTION. xxxvii 50. Genus Dipl
Page 51 and 52: ; INTRODUCTION. xli 64. Genus Astro
Page 53 and 54: INTRODUCTION. xliii which thus form
Page 55 and 56: ; INTRODUCTION. xlv 79. Genus Oclan
Page 57 and 58: INTRODUCTION. xlvii 4. Genus Micbab
Page 59 and 60: INTRODUCTION. xlix 14. Genus Ctclos
Page 61 and 62: INTRODUCTION. li the sclerenchyma,
Page 63 and 64: INTRODUCTION. liii 7. Genus Stephan
Page 65 and 66: INTRODUCTION. Iv Family VII. PORITI
Page 67 and 68: . INTRODUCTION. Ivii Second Tribe
Page 69 and 70: INTRODUCTION. lix 4. Genus Fistulip
Page 71 and 72: INTRODUCTION. hi but much shorter,
Page 73 and 74: INTRODUCTION. Ixiii Family X. SERIA
Page 75 and 76: ; INTRODUCTION. Ixv Family XIII. CY
Page 77 and 78: INTRODUCTION. kvii 7. Gejius Hallia
Page 79 and 80: INTRODUCTION. hix 17. Genus Gonioph
Page 81 and 82: INTRODUCTION. Ixxi or costal radii
Page 83 and 84: INTRODUCTION. • Ixxiii The genera
Page 85 and 86: INTRODUCTION. Ixxv Family I. ALCYON
Page 87 and 88: INTRODUCTION. Ixxvii Second Tribe
Page 89 and 90: INTRODUCTION. Ixxix 1 7. Ge?ius Dis
Page 91 and 92: INTRODUCTION. Ixxxi 8. Genus Soland
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Page 95: INTRODUCTION. Ixxxv Order 3. PODACT
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CORALS OF THE UPPER CHALK. 46 towar
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CORALS OF THE UPPER CHALK. 47 Famil
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: CORALS FROIM THE UPPER CHALK. 49
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CORALS FROM THE UPPER CHALK. 51 Tho
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CORALS FROM THE LOWER CHALK. 53 CHA
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CORALS FROM THE LOWER CHALK. 55 the
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CORALS FROM THE UPPER GREENSAND. 57
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; CORALS FROM THE UPPER GREENSAND.
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CORALS FROM THE GAULT. CHAPTER VI.
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; CORALS FROM THE GAULT. 03 3. Genu
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CORALS FROM THE GAULT. 65 found nea
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CX)RALS FROM THE GAULT. G7 and have
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' Petref. : ; CORALS FROM THE GAULT
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; CORALS FROM THE LOWER GREENSAND.
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TAB. IX. CORALS FROM THE UPPER CHAL
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TAB. XI. CORALS FROM THE GAULT. Cya
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302 TABLE OF BRITISH FOSSIL CORALS.
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304 TABLE OF BRITISH FOSSIL CORALS.
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A. GENERAL INDEX;
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308 GENERAL INDEX.
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310 GENERAL INDEX.
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312 GENERAL INDEX. Dendrophyllia de
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314 GENERAL INDEX. . Halysites cate
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310 GENERAL INDEX.
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318 GENERAL INDEX.
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320 GENERAL INDEX.
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322 GENERAL INDEX. Xenia Zaphrentis
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