360 Rev. T. Hincks's Catalogue of Zoophytes 



expressed in two individual creatures, the maturely sexual male 

 and female. Both in the animals which we are here considering 

 and in all others which are suhject to the law of alternation of 

 generations, and of which the different steps of development are 

 represented by different individual creatures endowed with pe- 

 culiar attributes, the idea of the species will only be rendered 

 complete by the inclusion of the characters of the whole of the 

 generations following each other in cyclical evolution. 



In the present position of science it will undoubtedly be both 

 easier and more advisable to take the Hydroid polypes (nurse- 

 animals) as the foundation of the classification of the lower Me- 

 dusae, and to unite with each species the Medusa produced from 

 it, but also to take sufficient notice, in the specific characters, of 

 both generations — Proles hydriformis as well as Proles medusi- 

 formis. 



That in the meanwhile we continue, as before, to indicate 

 every newly observed nurse-form (Hydroid polype) as well as the 

 free-swimming Medusae, or both generations, by a proper provi- 

 sional name, by no means tends, like the rest of the crowd of 

 synonyms, to the further encumbrance of science. Nothing is 

 easier than subsequently, when the other generation is known, 

 to bring both forms together and to indicate them either by a 

 single definite name, or, as has been done, for example, in the 

 case of the Salpse, by a double specific name. 



XXXVI. — A Catalogue of the Zoophytes of South Devon and 



South Cornwall. By the Rev. Thomas Hincks, B.A. 



[Continued from p. 297.] 



Order LUCERNARIDJE, Huxley. Fam. Lucernariadse. 



LucERNARiA, Miillcr. 



1. L. auricula, Fabr. 



Common on weed near low-water mark : Littleham, near Ex- 

 mouth ; Petit Tor, near Torquay, &c. 



2. L. campanulata, Lamx. 

 Torbay {Dr. Coldstream). 



Class ACTINOZOA, Huxley. 



Order ZOANTHARIA, Milne-Edwards (pars). Fam. Actiniadae. 



1. AcTiNOLOBA, Blainville. 



A. dianthus, Ellis. 



Common : large colonies amongst the trawl-stuff, Brixham ; 

 on oysters, &c. 



