HYDKOZOA. 



«J1 



bells, mednsa-liko iudividiuilK, each consistiui,' simply «.f an Dn.i.r.i! . 

 and adapted solely for swimminjr ; next folltiws a whorl uf . 



Ki... 24. 



Floating colonies of Siphimophoni. a. Diphynxtimpninihilii. n. Agn>u|> 

 of appeii(l!i<;es from tlie steiu «\ Jh'plii/es. c {F\<i. on ri^lit ). l^lnjnojihora 

 hijdrostatica. D. Swiiiiiiiing-liell nltlu' siinie. e. (.'liistor of jjoui'nitivi 

 buds (dfgonerate iiii'dusfc) of Aij>ihHii. <(, stem of colony ; n', uir 

 sac; //(, ssviiuniiii'^-ljell ; t-, cuncavity of Biiino; r, radial ainulo; 

 0, orifice of umbrella ; t, covering pieces in u, tentacle-like jnilypa in c ; 

 7J, stomach ; i, tentacles; j/. generative l)ndt*. (Alter licgeulmtir, fntin 

 Eneyc. Uritaiiiiii'a.) 



" coverino-pit'ces/'aiid below this a chister ul' nieiliisa-likc irenenUivt- 

 polyps, teutaclc-likc polyps ami short -stalked feediiii,' jiolyps, eaeli of 



