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A monograph of the British fossil corals - kreidefossilien.de

A monograph of the British fossil corals - kreidefossilien.de

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Ixxii<br />

BRITISH FOSSIL CORALS.<br />

30. Genus Lithostrotion .<br />

{Pars) Fleming, <strong>British</strong> Animals, p. 508, 1828 ; Strombo<strong>de</strong>s and Lonsdaleia, M'Coy, iu Ann. <strong>of</strong> Nat. Hist.,<br />

2d series, vol. iii, pp. 10, 11, 1849.<br />

Corallum resembling Neinatop/ii/Uum, but having <strong>the</strong> columella formed by a fasciculus<br />

<strong>of</strong> twisted bands, and <strong>the</strong> septa subvesicular exteriorly, and joining <strong>the</strong> columella along<br />

<strong>the</strong>ir mner edge.<br />

Typ. sp., Lithostrotion floriforme, Fleming, loc. cit., p. 508.<br />

31. G^e??MS AXOPHYLLUM.<br />

Corallum simple, trochoid, and resembling Lithostrotion by its<br />

structure.<br />

Typ. sp., Axophyllum expansum, nob.<br />

32. Ge7ius Syringophtllum.<br />

Sarcinula, Dana, Zooph., p. .'563,<br />

1846 (not Sarcinula, Lamarck).<br />

Corallum composite, astreiform. Corallites provi<strong>de</strong>d with strong walls, and much<br />

<strong>de</strong>veloped costse. Sejjfa large. Tabula but little <strong>de</strong>veloped. Columella styliform.<br />

Typ. sp., Syringophyllum organum ; Madrepora organum, Linnaeus, Syst. Nat., ed. \n, vol. i, p. 1278.<br />

Family XV.<br />

CYSTlPHYLLIDiE.<br />

<strong>of</strong><br />

Corallum essentially composed <strong>of</strong> a vesicular tissue, and presenting little or no traces<br />

septa or radiate striae.<br />

1. Genus Cystiphtllum.<br />

Lonsdale, in Murchison's Silurian Syst., p. 691, 1839.<br />

Corallum simple, turbinate ; <strong>the</strong> visceral chamber filled with small vesicular laminae.<br />

Calice shallow. Walls vesicular.<br />

Typ. sp., Cystiphyllum Silnriense, Lonsdale, loc. cit., tab xvi bis, fig. 1 (but not fig. 2).<br />

Sub-or<strong>de</strong>r 5.<br />

ZOANTHARIA CAULICULATA.<br />

Antipathacea, Dana, Zoopb., p. 574.<br />

Polypi supported on a sclcrobasis or epi<strong>de</strong>rmic stem-like corallum.

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