A monograph of the British fossil corals - kreidefossilien.de

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xxii BRITISH FOSSIL CORALS. 13. Genus Endhelia. Milne Edw. aud J. Haime, loc. cit., p. 69, 1849. Corallum of the same general form as in the preceding genus, but with the coralhtes alternate on the branches, which are thick and coalescent. Calices immersed ; their border not projecting, but armed with a tongue-shaped process. No columella nov pali. Typ. sp., Endhelia Japonica, Milne Edw. and J. Haime, loc. cit., p. 69 (Mus. of Leyden). 14. Genus Stylaster. Gray, Zool. Miscel., p. 36, 1831; AUopoi-a, Ehrenb., Cor. Roth. Meeres, p. 147, 1834; Dana, op. cit., p. 693, 1846 ; Milne Edw. and J. Haime, loc. cit., p. 69, 1849. Corallum arborescent and subflabellate ; coenenchyma highly developed, smooth, and presenting certain excrescences or tubercles, the nature of which is problematic. Calices rare and not projecting much. Neither columella nor pali. Typ. sp., Stylaster rosea. Gray, loc. cit. ; Ocidina rosea, Lamarck, op. cit., t. xi, p. 287 ; Esper., tab. xxxvi. Transitional Group. PSEUDOCULINID.^. Corallum composite, with a highly developed, spongy, or cellulose, echinulate, dermic, coenenchyma. Costal apparatus rudimentary. Walls imperforate, and never invading the visceral cavity. Septal apparatus well developed ; dissepiments few in number. This small group participates of the characters belonging to the Oculinidce and the Astreidce, but differs essentially from both. It does not, however, present any important structural pecidiarity, and does not appear to be derived from a special zoological type. 1. Genus Madracis. Milne Edw. and J. Haime, Comptes rend, de I'Acad. des Sc, t. xxLx, p. 70, 1849. Corallum arborescent ; coenenchyma almost compact, and highly echinulated. Calices unarmed. Colmnella styliform. Septa exsert and equally developed. Typ. sp., Madracis asperula, Milne Edw. and J. Haime, loc. cit., p. 70 ; Bentipora asperula, Gray, MSS. British Museum. 2. Genus Stylophora. Schweigger, Beobacht. auf Natur., t. v, 1819 ; Sideropora and Stylopora, Blainville, Manuel d'Actinologie, p. 348, 1830; Sideropora, Milne Edw. and J. Haime, loc. cit., p. 70, 1849. Corallum arborescent ; coenenchyma sub-compact, with a granidated surface. Calices armed with a labial process near the upper part of their margin. Columella styhform. Typ. sp., Stylophora pistillaris, Schweigger, loc. cit. ; Madreporu pistillaris, Esper., tab. Ix.
INTRODUCTION. xxiii 3. Genus Dkndracis. Milne Edw. aud J. Haime, Comp. rend., t. xxix, p. 70, 1849. Corallum arborescent ; coenencliyraa almost compact, with its surface granulated. Calices sub-manuiiiform. No cohimeUa. 8e])ta not exsert, or only very slightly so ; nearly equal. Typ. sp., Demh-acis GervilUi, nob. ; Madrepora GerwY^M, Defrance, Diet, des Sc. Nat., vol. xxviii, p. 8; Michelin, Icon., Zooph., pi. xlix, fig. 8. 4. Genus AR.i;.4cis. Milne Edw. aud J. Haime, loc. cit., p. 70, 1849. Corallum massive ; coenenchyma spongy, with its siurface echinulate. Calices with a thin projecting margin. No columella. 8epia unequally developed, entii-e. Typ. sp. Araacis sphcEroidalis, nob. ; Astrea spharoidalis, Michelin, pi. xliv, fig. 9. Family III. ASTREID^. Dana, Exploring Expedition, Zooph., p. 194, 1846. Corallum composite or simple, circumscribed by imperforated walls, and often increasing by fissiparity. Corallites becoming tall by the progress of their growth ; each individual or series of individuals well defined, and separated from the others by perfect walls. Ccenenchyma not existing, or being formed either by the development of the costae aud their dissepiments, or by the epithecal tissue alone, and not forming a compact mass as in the Oculinidse. The visceral chamber never obliterated inferiorly by the growth of the walls, but subdivided and more or less completely closed up by the interseptal dissepiments, which are in general very abundant ; never any synapticida; like those of the Fungidae. First Tribe—EUSMILINtE. Sepia completely developed and entire (that is to say, with their apical margin neither lobate nor denticulate). Costce always unarmed. Columella often compact, or even styliform. Section I.—EUSMILIN^E PROPRIA. Corallum simple or composite, and in that case formed by distinct corallites, affecting an arborescent disposition, fasciculate, or presenting a linear arrangement ; free laterally, at least in a great part of their length, and never having their calices blended together. Reproduction usually fissiparous in the compound species.
Page 5: THE PALiEONTOGRAPHICAL SOCIETY. INS
Page 8 and 9: i. E. ADLJIED, PBINTr.B, BARTHOLOME
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Page 13 and 14: INTRODUCTION. iii centre of the ram
Page 15 and 16: INTRODUCTION. v certain parts of th
Page 17 and 18: INTRODUCTION. vii in which the mult
Page 19 and 20: INTRODUCTION. ix Sub-class 1. CORAL
Page 21 and 22: ; INTRODUCTION. xi Sub-order 1. ZOA
Page 23 and 24: INTRODUCTION. xiii 3. Genus Acantho
Page 25 and 26: ; INTRODUCTION. xv formed by proces
Page 27 and 28: ; INTRODUCTION. xvii IS. Genus Plat
Page 29 and 30: INTRODUCTION. xix Aberrant Group. P
Page 31: INTRODUCTION. xxi 8. Genus Amphelia
Page 35 and 36: INTRODUCTION. xxv 5. Genus Ccelosmi
Page 37 and 38: INTRODUCTION. xxvii in the two prec
Page 39 and 40: ; INTRODUCTION. xxix 23. Genus Pler
Page 41 and 42: ; INTRODUCTION. xxxi 30. Genus Hete
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Page 47 and 48: LNTRODUCTION. xxxvii 50. Genus Dipl
Page 49 and 50: INTRODUCTION. xxxix Section IV.—
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
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Page 77 and 78: INTRODUCTION. kvii 7. Gejius Hallia
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Page 81 and 82: INTRODUCTION. Ixxi or costal radii
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INTRODUCTION. • Ixxiii The genera
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INTRODUCTION. Ixxv Family I. ALCYON
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INTRODUCTION. Ixxvii Second Tribe
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INTRODUCTION. Ixxix 1 7. Ge?ius Dis
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INTRODUCTION. Ixxxi 8. Genus Soland
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INTRODUCTION. Ixxxiii 3. Ge7lUS ViR
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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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