404 Rev. L. Guilding on the Zoologi/ of 



Sustentaculum^" dorsale, cartilagineum, nudum, complanatum, 

 rotundum, radiatum, concentrice striatum. 



Pallium angustum, liberum, sutstentaculum ciiigens. 



Brachia numerosa, parallela, longitudine varia, elongata, subtus 

 affixa, mox declinanda ad praBdam captandam. 



Os inferum, centrale, bursiforme, extensile. 



Tentacula plurima difformia, suctoria, ventrem totura tegentia. 



Ova miautissima, innumera, inter tentacula nidulantia. 



Polybrachionia Linnoeana. 



P. sustentaculo lato vitreo ; corpore coeruleo ; tentaculis pal- 

 lidis ; brachiis serie triplici glandulosis, glandulis pedunculatis. 



Habitat in mari Caribeo, superficie natans tempestate serena, 

 vel potius fluitans, praedam brachiis quibusdam vel omnibus subito 

 declinatis amplectens. Brachia facile abrumpit atterrita. 

 Animal mirae pulchritudiuis^ tanto nomine dignum, 

 Diam. pallii, brachiis exclusis, 11^ lin. ' 



Dei nomen triviale immortalis Carolus von Linne, Zoologo- 

 rum et Botanicorum Pater, Dux, Princeps. 



Tab. X. 

 ExpL tab. 

 Fig. 1. Animal pronum auctum. 2. Supinum. «, 6, c, Os 

 forma mutata. f/. Ova mag. nat. e,/, Eadem plus minusve aucta. 



The old genus Porpita should be restricted to contain those spe- 

 cies which resemble P. appendiculata of Bosc, which have few and 

 broader arms. The Medusa Porpita of the '' Amaenitates Acade- 

 micae " seems nothing more than the central disk of some species 

 deprived of all the organs of the body. 



Analeda Zoologica, 

 I know not whether that invaluable instrument, the Camera Lu- 

 cida of Dr. Brewster, is often used in England in taking the outline 



+ This term may be also applied to the central support of the Cephalopoda 

 which supplies the place of the vertebrae. 



