CLADOCORYNlD^ii. 379 



GONOSOME.— GoNOPiiORES thickly scattered over tlic whole of the space which 

 intervenes between the proximal and distal sets of tentacles. 



llahitdt. — Found fioating in tlie o|)eu sea. 



Localify. — Moutli of tlie Bay of Fundy, New Brunswick, W. Stinipsoii. 



The tloatiiig hydranth found by Stinipson measured about half an incii from its suimnit to 

 its l)asc. As ah-eady said, it is highly probable that the Acaulk primariiis is nothing more tlinii 

 the detached hydranth of a stalked form, whose hydropliyton lias not yet been discovered. 



CLADOCORYNIILE. 



TROPHOSOME. — Hydrantiis with both simple and ramified capitate tentacles. 

 GONOSOME.— Not known. 



CLADOCORYNE, TV. D. Rotch. 



Name. — /cXoSoc, a branch, and Kopxnn], a chdi ; so named from the branched condition 

 of the tentacles in the hydranth. 



TROPHOSOME. — Htdeocaulus developed, invested by a chitinous perisarc, 

 and rooted by a creeping filiform iitdrorhiza. Hydranths claviform, with a single 

 verticil of simple capitate tentacles round the mouth, and several verticils of branching 

 capitate tentacles on the rest of the body. 



GONOSOME.— Xot known. 



The genus Cladocorijne is separated from all other known hydroid genera by the ])resence of 

 ramified tentacles in the hydranths. Tins condition may be compared with that of Cladonewa, 

 in which the planoblast is distinguished by its ramified marginal tentacles. 



49 



