CAMPANULARIAE 



115 



E. duodecimalis A. Agassiz (Fig. 191). Tentacles 4, each with a pair 

 of cirri at its base; diameter 2.5 mm.; manubrium very short: Cape Cod 

 to Florida; often common. 



5. OCEANIA Peron and Lesueur. Hydroid form mostly unknown; 

 medusa hemispherical with 16 or more tentacles; lithocysts also numer- 

 ous in adults, 2 being between each two marginal tentacles; gonads 



Fig. 191 



Fig. 192 



Fig. 193 



Fig. 191Eucheilota duodecimalis (Mayer). Fig. 192 Oceania languida (Hargitt). 

 Fig. 193 Eutima mira (Hargitt). 



colored and borne along the outer half of radial canals: manubrium 

 with 4 everted oral lobes: 6 species. 



0. languida A. Agassiz (Fig. 192). Gonads brownish or pink or 

 green; tentacles 20 or more; diameter 20 mm.: from Bay of Fundy to 

 Florida; often common. 



6. EUTIMA McCrady. Hydroid form unknown in most species; 

 medusa bell-shaped with 4 or more tentacles and a very long manubrium 

 extending far out of the bell ; 8 lithocysts : 12 species. 



E. mira McCr. (Fig. 193). Medusa 2 cm. 

 in diameter and half as high, with gonads ex- 

 tending along almost the entire length of radial 

 canals; tentacles 4 in number and very long, 

 the base swollen and colored green: Florida to 

 New England; very common at Woods Hole in 

 August. 



7. TIMA Eschscholtz. Hydroid form minute; 

 medusa hemispherical with a long manubrium 

 sometimes extending out of the bell, at the end 

 of which are 4 frilled projections surrounding the 



mouth; tentacles numerous; gonads extending the length of the radial 

 canals and the manubrium: 5 species. 



T. formosa Agassiz (Fig. 194). Diameter 4 to 8 cm.; gonads and 

 oral lobes milk white: New England coast; often common, especially in 

 the spring. 



Fig. 194 



Tima formosa (Har- 

 gitt). 



