UYDROIDS OF EASTERN CATfADA 



151 



Tulnilaria crocea (Agassiz). 



Trophosome. Colony growing in thick tufts which 

 make a tangled mass below, but separate into long 

 stems above which reach out of the mass; branching 

 irregular; stems slightly and irregularly aunulatod; 

 proximal and distal set of tentacles each 20-24, 



Oonosonie. Gonophores growing in long racemes, 

 without radial canals, but with 4 laterally compressed 

 apical processes. 



Tuhularia indivisa Linn?eus. 



Trophosome. Stems growing in clusters, un- 

 branched, height 30 cm. ; perisarc heavier than in 

 other species; little or no sign of annulation ; proximal 

 tentacles up to 40, long and slender; distal set much 

 more numerous but shorter. 



Gonosome. Gonophores in racemes; sporosacs with 

 4 radial canals but without apical processes. 



No. 22. 

 Tiihnlaria crocea. 



No. 23. 

 Tubularia indivisa. 



Tuhularia larynx Ellis and Solander. 



Trophosom-e. Stems clustered, often tang-led 

 at the base, height 2 cm. ; perisarc extensively 

 annulated, annulations varying from deep to 

 shallow; proximal and distal set of tentacles 

 each about 20. 



Gonosome. Gonophores in denser, more 

 compact racemes; sporosacs without radial 

 canals; apical processes scarcely develoi>ed. 



No. 24. 

 Tubularia larynx. 



