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. 191 



Fig. 191 — Eucheilota 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: C 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). 



