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Antediluvian Zoology and Botany. 271 
characters in Lamouroux’s table of 51 recent species, the 
result is rather an approximation to similarity, in a few cases, 
than an identification with any existing kinds. The recent 
Alcyonia are distinguished from the Sponges by having an 
external skin, full of openings, possessed by oviparous tenta- 
culated hydre. 
Under the subdivisions, polypifers formed like network, 
foraminated polypifers, lamellated polypifers, cortiferous poly- 
pifers, &c., numerous genera have been described by Ellis 
and by Lamarck, and many fossil kinds are known in the 
English formations. ‘They are extensively distributed, and 
abound particularly in the mountain limestone, the coral rag, 
and the crag. (fig. 58.) 
We have introduced into the following table some of the principal genera 
of fossil corals, &c. : — 
a, Flistra, Suffolk, Crag, g, Caryophyllz‘a, Steeple Ashton, 
6, E’schara, Aldburgh, Crag. Coral rag. 
c, Retipora, Sunderland, Magnesian h, Stylina of Parkinson, Cumber- 
limestone. land, Mountain limestone. 
d, Cellépora, Dudley, Moun. limest. 7, Astréa, Mitford, Bath oolite. 
e, Catinipora or Tubfpora, Chain *, Madrépora, Dudley limestone. 
coral, Mountain limestone. The Stylina above given is by some 
Jf, Caryophylle’a, Norwich, Chalk. called a ramose Caryophylle‘a. 
In the transition limestone, several fossil species are 
arranged under the genus Stylina. ‘ The recent species, 
which Lamarck considers as the type of this genus, was 
brought from the South Seas, and furnishes us with another 
instance of animals whose remains are found in formations of 
the earliest creation ; no traces of which animals have been 
seen in any of the subsequent formations, but are now found in 
a living state in the seas of the opposite hemisphere.” (fg. 59.) 
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