ANTHOZOA HYDROIDA. 103 
Cirass 1. ANTHOZOA. 
“The study of Natural History is within the reach of every one; and he 
who is engaged in it, is presented at every step in his progress with some- 
thing capable of awakening pleasing emotions. The whole earth is to him a 
vast museum, in which are crowded beautiful and sublime objects, animate and 
inanimate, in almost endless variety, all combining to amuse the understand- 
ing and gladden the heart.” 
I. ANTHOZOA HYDROIDA. 
Tribe Il. TUBULARINA. 
Famity CORYNIDA. 
Character. Polypes rooted, fleshy, or sheathed in a horny skin, 
simple or ramose, the upper part dilated into a clavated head 
armed with tentacula, which are either irregular or sub-biserial, 
and are variable in number; mouth terminal; oviform capsules 
pullulating in clusters from the bases of the tentacula, and 
naked. 
Genus I. CLAVA, Gmelin. 
Generic 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 name is from clava, a club.—Johunston. 
