THE ANiNALS 



MAGAZINE OF NATUEAL HISTORY. 



[SIXTH SERIES.] 

 No. 87. MARCH 18^5. 



XXIV. — On the Genus Alicia (Cladactis), with an Anatomical 

 Description of A. costfe, Pane. By J. E. Duerden, 

 A.R.C.Sc. (Lond.), Curator of the Museum of the Institute 

 of Jamaica, 



[Plate IX.] 



While investigating, in conjunction with Prof. Haddon, the 

 anatomy and relationships of a collection of sea-anemones 

 from Port Phillip, Australia, it became necessary, in order to 

 determine the systematic position of one of them — Gystiactis 

 tuberculosa, Quoy & Gaira., — that a study of the genus Alicia 

 should be made. No specimen in this genus, so far as we 

 are aware, has ever been submitted to microscopic examina- 

 tion, a condition which is now absolutely necessary before 

 the relationship of any form of sea-anemone can be deter- 

 mined. 



The genus Alicia was founded by J. Y. Johnson (1861) 

 for a new form of sea-anemone — Alicia mirahilis — from 

 ]\Iadeira. Andres (1884), disregarding Johnson's priority, 

 places this species under the genus Gladactis, founded by 

 Panceri in 1868 for a Mediterranean Actiniarian, Cladactis 

 costce. Verrill (1869), quite independently, founded a genus 

 of the same name for a new Panaman species, Cladactis 

 grandis. Prof. Haddon and Miss Shackletou (1893) restore 

 Johnson's Alicia in place of Cladactis, and add a new species, 

 Alicia rhadina, which they regard as undoubtedly allied to 

 Actinia preiiosa, Dana, from Fiji. They therefore show the 

 genus Alicia to include the following: — A. mirahilis, Johns. 



Ann. & Mag. N. Hist. Ser. 6. Vol. xv. 15 



