J. E. Duerden — Jamaican Actiniaria: Part T. — Zoantheai. 375 



correspond in number with one series of the tentacles. Andres (p. 311) regards 

 the species as synonymous with Polythoa axinellce, Schmidt. This has since been 

 described by Haddon and Shackleton (1891, p. 654), who make it the type species 

 of the present genus. It will be found from the account here given, that the 

 West Indian representative differs from the description of the European example, 

 likewise commensal with a sponge, in many features both of form and anatomy. 



The extraordinary abundance of the bright yellow pigment granules through- 

 out the ectoderm and endoderm should be noted in the present species. 



REFERENCES. 



1707. Sloane, Sir Hans : 



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"The Natural History of many curious and uncommon Zoophytes collected from various parts of 

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1817. Ctjvieb, G. C. L. D. : 



"Le Regne animal." — Paris. 



1817. Lesueub, C. A. : 



" Observations on several species of the genus Actinia. Illustrated by figures." — Jour. Acad. 

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1864. Verrill, A. E. : 



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1866. Dtjchassaing, P., et Michelotti, J. : 



"Supplement au Memoire sur les Coralliaires des Antilles." Mem. Reale Accad. Sci. Turin 

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