contributions to the natural history of the united states of america zoology chelonia genus ctenophora cnidaria animals chap ii limits of the class 109 fiij 63 pelagia cyasella per and les a umbrella m m mouth tentacles or arms the prolongation of the angles of the mouth tt mirgiual tentacles it appears thus that wheth er originathig from hydroids or not all genuine gymnoph thalmata the diycophora cryp tocarptb of eschscholtz must be united into one great natu ral division with all the genu ine hydroids whether these produce free medusae or not but w re85df.jpg from hora genu View Photo