WORMS. 310 



called Annelidans, and Annulosans, and the last, 

 with more propriety, Condylopes. 



There is one tribe, however, amongst the Ra- 

 diaries, as we have seen, that shews some slight 

 traces of insection, I allude to the star-fish and 

 sea-urchins, forming the main body of Lamarck's 

 Order of Echinoderms. If we examine the for- 

 mer, we find them marked out into areas, and in 

 the latter, as I have before stated at large, the 

 whole shell consists of numerous pieces united 

 by different kinds of sutures. 



Before I call the reader's attention to the two 

 tribes lately mentioned, exhibiting the appear- 

 ance or reality of insection, I must notice an 

 anomalous tribe of animals, whose real station 

 has not been satisfactorily made out. I am 

 speaking of the Entozoa or Intestinal Worms. 

 This Class, as Mr. W. S. Mac Leay has re- 

 marked, consists of animals differing widely in 

 their organization, some having a regular ner- 

 vous system formed by a medullary collar send- 

 ing forth two threads, while others have no 

 distinct organs of sense. 



Lamarck places this Class between the Tuni- 

 caries and Insects, and Cuvier, amongst his 

 Zoophytes, between the Gelatines and Echino- 

 derms. Mr. Mac Leay has divided it into two 

 classes, placing one, consisting of the Parenchy- 

 matous intestinal worms of Cuvier, between the 

 Infnsories and Polypes, and the Cavitaries of that 



