104 



ZOOPHYTES. 



From this table, it appears that only twenty-seven species out of 

 three hundred and six are known to be common to the East Indies 

 and Pacific Ocean. With regard to those common to the East and 

 West Indies, for which no column is assigned, there is but one, — the 

 Meandrina labyrinthica, — about which much doubt remains. 



104. We have no authority for accrediting to the West Indies any 

 species of the genera Fungia, Pavonia, Herpetolithus, Merulina, 

 Monticularia, Gemmipora, Anthophyllum, Pocillopora, Sideropora, 

 or Seriatopora, all of which are common in the opposite hemisphere. 

 The AgariciaB, with the exception of a single osculant species, are 

 confined to the sub-genus Mycedia, exclusively West Indian, which 

 contains very firm compact corals, with an Astrsea-like character. 

 The Millepores are the only known Favositidse, and but half a dozen 

 Madrepores have yet been distinguished. The Manicinse, Caryo- 

 phyllias, and OculinaB, are more numerous in the West Indies than 

 elsewhere, and the Ctenophylliaj (Meandrinae, with stout entire 

 lamella?,) have been found only in the West Indies. The genus 

 Porites contains several species, but they are uniformly more fragile 

 and more porous species than those I have seen from the Pacific 

 and Indian Oceans ; and the polyps, as figured by Lesueur, are more 

 exsertile, approaching, in this particular, the Gonioporse. 



