J. E. Durerpen—Jamaican Actiniaria: Part I.—Zoanthee. 875 
correspond in number with one series of the tentacles. Andres (p. 311) regards 
the species as synonymous with Polythoa axinelle, 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. 
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1817. Cuvier, G. C. L. D.: 
“Te Régne animal.’’—Paris. 
1817. Lesveur, C. A.: 
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1828. Gray, J. E.: 
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