A monograph of the British fossil corals - kreidefossilien.de

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Ixxx BRITISH FOSSIL CORALS. 2. Genus Ptekogorgia. Ehrenberg, Corall. des Rothen Meeres, p. 144, 1834 ; Dana, op. cit., p. 647, 1846. Diifers from Gorgonia by the polypi being bifarious. Typ. sp., Pterogorgia anceps, Ehrenb., loc. cit., p. 145. 3. Genus Bebryce. Philippi, Zoologesche Beobachtungen, in Archiv. fur Naturgeschichte, von Erichson, vol. viii, p. 35, 1842. Arborescent compound polypi, resembling Gorgonia by their corneous sclerobasis, but differing from the preceding genera by not being retractile. Typ. sp., Bebryce mollis, Philippi, loc. cit. 4. Genus Phyllogorgia. Differs from Gorgonia by the coenenchyma not constituting a cylindrical sheath around the ramifications of the sclerobasis, but extending between them so as to constitute large foliaceous, frondiform laminae, the two sui'faces of which are studded with the cahces of the individual polypi. Typ. sp., Phyllogorgia dilatata ; Gorgonia dilatata, Esper, Pflanz. Gorg. tab. xli. 5. Genus Phycogorgia. Sclerobasis flabelliform, divided into digitated lobes, and composed of delicate corneous fibres united into lamina3, the two sides of which are covered with the coenenchyma, and densely studded with numerous non-prominent calices. Typ. sp., Phycogorgiafucata ; Gorgonia fucata, Valenciennes, Voyage de la Venus, tab. xi, fig. 2. 6. Ge7ms Muricea. Lamouroux, Exposit. Method, des Polyp, p. 36, 1821. Differs from Gorgonia by the calices being surrounded with imbricated squanimula;, but not supported on long, verruciform, moveable appendices, as in Primnoa. Typ. sp., Muricea spicifera, Lamouroux, op. cit., tab. Ixxi, figs. 1, 2. 7. Genus Primnoa. Lamouroux, Hist, des Polypiers Flexibles, p. 440, 1816. Differs from the preceding genus by the polypi constituting long verruciform subpediculated appendices, which are capable of motion at their bases.
INTRODUCTION. Ixxxi 8. Genus Solanderia. Ducliassaing and Michelin, in Guerin's Revue Zoologique, June, 1846. Differs from Gorgonia by the suberous textiu'c of the sclerobasal axis, which resembles the non-calcified joints of Melitaea. Typ. sp., Solanderia gracilis, Duchassaing and Miclielin, loc. cit. 9. Genus Briaeeum. Blainville, Manuel d'Actinologie, p. 520, 1830. Axis soft, suberous, or composed of spicula. This genus is intermediate between Alcyonium and Gorgonia. T}'p. sp., Briareum gorgonoideum, Blainv. ; Gorgonia briarevs, Lin. ; Ellis and Solander, tab. xiv, figs. 1, 2. The genus Hyalonema established by M. Gray, ('Proceed, of the Zool. Soc' 1835, p. 63,) is also referred by some zoologists to the tribe of Gorgoninae ; but the recent observations of M. Valenciennes tend to establish that the fasciculi of siliceous threads, which constitute the axis of this singular production, belong to the class of Spongidee, and the polypi which we have observed in a di-ied state on different parts of the axis appear to be parasites, belonging to the order of Zoantharia. Second Ti-ibe—ISIN^. Dana, Exploring Exped., Zooph., p. 677, 1846. Common axis articulated, or composed of segments, the structure of which differ alternately. 10. Genus Isis. Linnaeus, Syst. Nat., 12th ed., p. 1287, 1767. Axal sclerobasis composed of joints, alternately corneous and calcareous ; branches proceeding from the calcai'eous joints. Typ. sp., Isis hippuris, Lin., loc. cit. 11. Genus Mopsea. Lamouroux, Polyp. Flex., p. 466, 1816. Axis presenting the same structure as in the preceding genus, but with the branches proceeding fi'om the corneous joints. Tvp. Bp., Mopsea dichotoma, Lamouroux, loc. cit., p. 467.
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THE PALiEONTOGRAPHICAL SOCIETY. INS
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i. E. ADLJIED, PBINTr.B, BARTHOLOME
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e 7b-^,pi'? PRINTED BY C. AND .1. A
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INTRODUCTION. iii centre of the ram
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INTRODUCTION. v certain parts of th
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INTRODUCTION. vii in which the mult
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INTRODUCTION. ix Sub-class 1. CORAL
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; INTRODUCTION. xi Sub-order 1. ZOA
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INTRODUCTION. xiii 3. Genus Acantho
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; INTRODUCTION. xv formed by proces
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; INTRODUCTION. xvii IS. Genus Plat
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INTRODUCTION. xix Aberrant Group. P
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INTRODUCTION. xxi 8. Genus Amphelia
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INTRODUCTION. xxiii 3. Genus Dkndra
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INTRODUCTION. xxv 5. Genus Ccelosmi
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INTRODUCTION. xxvii in the two prec
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Page 43 and 44: INTRODUCTION. xxxiii 30. Genm Symph
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Page 47 and 48: LNTRODUCTION. xxxvii 50. Genus Dipl
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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
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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: INTRODUCTION. Ixxix 1 7. Ge?ius Dis
Page 93 and 94: INTRODUCTION. Ixxxiii 3. Ge7lUS ViR
Page 95: INTRODUCTION. Ixxxv Order 3. PODACT
Page 98 and 99: CORALS OF THE UPPER CHALK. 46 towar
Page 100 and 101: CORALS OF THE UPPER CHALK. 47 Famil
Page 102 and 103: : CORALS FROIM THE UPPER CHALK. 49
Page 104 and 105: CORALS FROM THE UPPER CHALK. 51 Tho
Page 106 and 107: CORALS FROM THE LOWER CHALK. 53 CHA
Page 108 and 109: CORALS FROM THE LOWER CHALK. 55 the
Page 110 and 111: CORALS FROM THE UPPER GREENSAND. 57
Page 112 and 113: ; CORALS FROM THE UPPER GREENSAND.
Page 114 and 115: CORALS FROM THE GAULT. CHAPTER VI.
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Page 118 and 119: CORALS FROM THE GAULT. 65 found nea
Page 120 and 121: CX)RALS FROM THE GAULT. G7 and have
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Page 124: ; CORALS FROM THE LOWER GREENSAND.
Page 130: TAB. IX. CORALS FROM THE UPPER CHAL
Page 138: 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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