Plate 10. 



Leucothea ochracea. One of the auricles. 



Leucothea ochracea. One of the papillce. 



Leucothea ochracea. View of sense-organ. 



Leucothea ochracea. Portion of one of the rows of combs, 



showing follicles of sexual organs and transverse muscles 



between each pair of combs. 

 Leucothea ochracea. Portion of muscular net of oral lobes. 

 Ocyropsis crystallina. Young animal, 8.5 mm. wide. 

 Ocyropsis crystallina. Half -grown Ctenophore, 26 mm. 



wide, g, paragastric canal. 



Drawn from life, by the author. 



