74 



POPULAR ILLUSTRATIONS OF 



100 



Fig. 97. Hermia glandulosa; natural size. 



Fig. 98. Portion of the same magnified ; e, glandular-looking tentacles. 



Fig. 99. Tubularia indivisa, natural size; c, root; d, head; /, crenosarc enclosed in horny 



polypidom. The cross lines shown in the stalks are not seen when the animal is dead. 

 Fig. 100. Head of T. indivisa magnified, showing the tentacles round the mouth (g) ; those 



round the neck (ft) ; and a row of germs (i) round the base of the head (after Johnston). 



