A monograph of the British fossil corals - kreidefossilien.de

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XX BRITISH FOSSIL CORALS. 3. Genus Cyathelia. Milne Edw. and J. Haime, loc. cit., p. 68, 1849. CoraUum arborescent ; gemmation terminal and regularly opposite. Coralliles free to a considerable distance from the calice, which are grouped in a way similar to that of flowers constituting a dichotomous cyme. Columella large and papillose. Fall weU developed. Septa entire, exsert, and strongly granulated. Typ. sp., Cyathelia axillaris, nob. ; Madrepora axillaris, Ellis and Solander, tab. xiii, fig. .5. 4. Genus Astrhelia. Milne Edw. and J. Haime, loc. cit., p. 68, 1849. CoraUum in general arborescent, and resembling Oculina by its form and its mode of gemmation, but diflering from the three preceding genera by the non-existence of pali. Calice Avith a deep central fossula. Columella septal ; edges of the septa denticulated. Typ. sp., Astrhelia palmata, nob.; Madrepora palmata, Goldfuss, tab. x.xv, fig, 6. 5. Genm Stnhelia. Milne Edw. and J. Haime, loc. cit., p. 68, 1849. CoraUum arborescent, with thick branches ; gemmation irregular. Calices very shallow, their border scarcely projecting above the surface of the ccenenchyma, and united by common striae. Columella compact, styliform, and terminated by a small tubercle. Septa scarcely exsert. Typ. sp., Synhelia gibbosa, nob. ; Lithodendron gibbosum, Goldfuss, op. cit., tab. xsxvii, fig. 9. 6. Genus Acrhelia. Milne Edw. and J. Haime, op. cit., p. 69, 1849. CoraUum arborescent, or forming a ramified cluster ; gemmation pretty regularly spiral. Surface of the ccenenchyma smooth, excepting in the immediate vicinity of the calices, where slight traces of radiating costas are perceptible. Septa extremely exsert, lanceolate, and entire ; the principal ones uniting towards the lower part of their inner edge, without there being either a columella or pali in the centre of the visceral chamber, Typ. sp., Acrhelia SebcB, Milne Edw. and J. Haime, loc. cit., p. 69 ; Seba, Thes., vol. iii, tab. cxvii, fig. 5. 7. Genus Lophelia. Milne Edw. and J. Haime, loc. cit., p. 69, 1849. CoraUum arborescent, segregate, with coalescent branches ; no true ccenenchyma, but waUs very thick ; gemmation irregularly alternate and subterminal. Calices with a reverted lamellar border. Septa entire, exsert, and uniting at the bottom of the visceral chamber as in the preceding genus. No columella wox pali. Typ. sp., Lophelia prolifera, nob. ; EUis and Sol., tab. .Kxxii, fig. 2 ; Oculina prolifera, Lamarck, An. sans Vert., vol. ii, p. 286.
INTRODUCTION. xxi 8. Genus Amphelia. Milne Edw. and J. Haime, loc. clt., p. 69, 1849. Corallum arborescent, with coalescent brandies, and well-developed coenenchyma in aged parts ; gemmation subterminal, regularly alternate. Calice deep. ColumeUa rudimentary. Sepfa slightly exsert, entire, and small. No distinct co-yte ; the surface of the corallum smooth or very delicately striated. Typ. sp., Amphelia oculata, nob. ; Madrepora oculata, Esper, tab. xii. 9. Genus Diplhelia. Corallum resembling Ampheha, but having a lai-ge cohimeUa and denticulated septa. Typ. sp., Diplhelia raristella, nob. Ocidina raristella, Defiance, Diet, des Sc. Nat., vol. xxxv, p. 356. 10. G^raws Enallhelia. D'Orbigny MSS. ; Milne Edw. and J. Haime, loc. cit., p. 69, 1849. Differs from Amphelia by the shallowness of septa, and the existence of long costal striae. the calices, a greater development of the Typ. sp., Enallhelia compressa, D'Orbigny; Lithodendron compressum, Goldfuss, op. cit., tab. xxxvii, fig. II. § 2. Septa equally developed, and forming apparently a single cyclum. 11. Genus Axhelia. Milne Edw. and J. Haime, Compt. rend., t. xxix, p. 69, 1849. Corallum arborescent, with coalescent branches, and a well-developed coenenchyma, the surface of which is entirely covered with sub-granulose striae. Calices very shallow. Columella compact, very thick, and terminated by a rounded tubercle. No pali. Septa exsert, entire. Typ. sp., Axhelia mi/riaster, nob. ; Ocidina myriaster, Valenciennes MSS., Catal. of the Museum of Nat. Hist, of Paris. 12. Genus Crypthelia. Milne Edw. and J. Haime, loc. cit., p. 09, 1849. Corallum arborescent, flabellate, and unifacial, all the corallites opening on one of the surfaces of the flabellum ; surface of the branches quite smooth. Calices very prominent, pediculate, explanate, and folded in two. No cohmclla nor pali. Typ. sp., Crtjiithelia pudica, Milne Edw. and J. Haime, loc. cit., p. 69.
Page 5: THE PALiEONTOGRAPHICAL SOCIETY. INS
Page 8 and 9: i. E. ADLJIED, PBINTr.B, BARTHOLOME
Page 10: e 7b-^,pi'? PRINTED BY C. AND .1. A
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: INTRODUCTION. xix Aberrant Group. P
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 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
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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
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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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