ANTIIOZOA HYDROIDA. 



I. TUBULABINA. 



Ehrenberg Corall. des roth. Meeres, p. 70. 

 FAMILY CORYNID.E. 



TUBULARIJB pars, Pallas Spic. Zool. fiisc. x. p. 36-7. HYDRJB pars, Mutter Zool. 

 Dan. prod. p. 230. Genus CORYNE, Lamarck Anim. s. Vert. ii. 61. Fleminj 

 Brit. Anim. 553. Blainville Actinolog. 471. Sdnoeigger Handb. 409 Les Co- 

 RIXES, Cuvicr Reg. Anim. iii. 295 Family CORYNIDJS, Johnston in Trans. Berw. 

 Club (1836), p. 107. CORYNAIDJJ, Gray in Syn. Brit. Mus. (1840), p. 76. 



CHARACTER. Polypes rooted, fleshy or sheathed in a horny 

 skin, single or ramous, the upper part dilated into a clavated 

 head armed with tentacula, which are eitfter irregular or sub- 

 biserial, and are variable in number : mouth terminal : ovi- 

 form capsules pullulating in clusters from the bases of tlie 

 tentacula and naked. 



1. CLAVA,* Gmelin. 



CHARACTER. Polypes single, fleshy, more or less club-headed, 

 but contractile and mutable in form , the tentacula scattered, 

 smooth, filiform, varying in number; mouth terminal and 

 naked. 



The genus is thus defined by Gmelin : " Corpus carnosum, 

 gregarium clavatum, pedunculo tereti affixum : apertura unica 

 verticali." It is founded on an animal described, in 1775, by 

 Otto Frederick M tiller, in a paper in the " Beschaftigungen 

 der Berlinischen Gesellschaft Naturforschender Freunde," for 

 a transcript of which I am indebted to my friend Dr. W. 

 Baird. The description is written in Miiller's usual interest- 

 ing manner, and is so full that no one can mistake the 



* Clava, a club. Agassiz gives Oken as the author of the genus. 



