CLASSIFICATIONS OF ZOOPHYTES. 461 



on the corals of the Red Sea cannot but be reckoned amongst 

 the most valuable contributions to zoophytology. 



Milne Edwards gave at first no classical name to the asci- 

 dian zoophyte of the Flustrse ; and on his return to the 

 subject, he adopted that of Ehrenberg, as well as the name 

 Anthozoa for the radiated polypes. Of both classes he ap- 

 pears to have had, even at this date, a very definite know- 

 ledge, but the latter class only was subjected by him to fur- 

 ther division, being reduced to three natural and clearly 

 discriminated orders, viz. the Sertulairiens, the Alcyoniens, 

 and the Zoantaires.* 



It was also at this period (1836-f) that, to mark decisively 

 their structural differences, and their real relationship to the 

 other classes of invertebrate animals, I named the primary 

 sections of zoophytes the radiated and the molluscan. The 

 latter were embraced in one order, the Z. Ascidioida, a name 

 intended to point out its immediate affinity with the mollusca 

 tunicata ; and the radiated zoophytes were divided into three 

 orders, the same as those of Milne Edwards, but designated 



ORDO I. THALLOPODIA. 

 FAMILIA I. Cristatellina. 

 II. Halcyonellea. 

 III. Cornularina. 



IV Escharina. 



V. Celleporina. 

 VI. Auloporina. 



* Lamarck's Hist. Nat. des Animaux saus Vertebres. Deuxieme edition. 1836. 

 Tom. ii. p. 105. 



t Magazine of Zoology and Botany, vol. i. p. 447. 



