TUBULAEIAD.E. 



19 



Family I. Tubulariad^. 



Clava (Gmelin). Naked, fleshy ; tentacles scat- 

 tered, thread-like ; mouth terminal, naked. 



C. multicornis. Fig. 23 ; L- 6 . 



Hydractinia (Van Beneden). Naked, fleshy, 

 gregarious, many united on a common crust -like 

 base; tentacles in one circle, thread-like; egg- 

 germs sessile, clustered on untentacled individuals. 



H. echinata. Fig. 24 ; 20. 

 1 littoralis. 

 1 ? (Johnston's Zooph. 2d Ed. p. 463.) 



Myriothela (Sars) = Spadix (Gosse). Naked, 

 solitary, club-shaped, extensile, crowded with short 



°ffe 



u 



26 



27 



