16 CLASSIFICATION OF THE ANIMAL KINGDOM. 



OEDER II. CORYNIDA. Coryne, Tulularia, Clava, Bougain- 

 mllea (fig. 10), Eudendrium, Hydractinia. 



(Allman, Monograph of the Gymnoblastic or Tubularian Hydroids, Ray 

 Society, 1871 ; Hincks, British Hydroid Zoophytes, 1872 ; Louis Agassiz, 

 Contributions to the Natural History of the United States, vols. iii. and iv., 

 1860-62.) 



m' 



Fig. 10. Corynida. A, Part of the colony of Bougainvillea muscus, of the natural size. B, 

 Part of the same enlarged : p, A polypite fully expanded ; m, An incompletely developed 

 medusiform bud ; m', A more completely developed medusiform bud ; /, Coenosare with its 

 investing periderm and central canal, c, A free medusiform gonophore of the same ; n, 

 Gonocalyx ; p, Manubrium ; e, One of the radiating gastro-vascular canals ; o, Ocellus ; v, 

 Velum ; t, Tentacle. (After Allman.) 



