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ANALYTICAL INDEX. 



CHAPTER X.— Actinia, 



Actinia and Lucernaria are Helianthoids, 



Appearance and habits of lower animals, 



Actinia resembles a flower, 



Allied to the hydra, 



Its nature, 



It is wholly carnivorous, 



Fearless and voracious, 



Congenial food, 



Caution against its voracity, 



Swallows testacea, rejects their shells empty, 



Endures protracted abstinence, 



Orifices besides the mouth, 



Purple flakes from orifices, 



Active faculties, 



Slow motion, . 



Adhesive faculty, 



Distension a fatal symptom, 



Exuviation frequent, 



Senses obtuse, 



Tenacity of life, 



Suitable resemblance seldom given, 



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§ 1. Actinia mesembryanthemum, 

 Synonyms, 



Dr Johnston, — Lamarck, 

 Tentacida more numerous with age, 

 Tubercles, 

 Colour, 

 Preservation, 

 Lives long, 

 Perpetuation, 



Hermaphrodite how to be understood, 

 Offspring borne in the tentacula, 

 Corpuscula or gemmules also there, 

 Resemble Animalcula infusoria, 

 They are embryo Actiniae, 

 This Actinia viviparous, 

 Young produced by the mouth, 

 Disgorged along with the food, 

 Brood of 38, . 

 Developement of the tentacula, 

 Earliest visible embryo a ciliated gemmule, 



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