JOURNAL OF MICROSCOPICAL SCIENCE. 



EXPLANATION OF PLATE XXI, 



Illustrating Mr. W. Saville Kent's paper on two New 

 Genera of Alcyonoid Corals. 



\.—Gpnnosarca bathybius, nat. size, attached to and partly iuvesting a 

 fragment of Lophohelia prolifera. 



2. — A detached piece of the same, enlarged. 



3. — A single calyx, X 10 diameters, and illustrating the arrangement of 

 the spicula. 



4i.— Spicula of the general ccenenchyma, x 40 diameters ; a, a slender 

 arcuate spiculum from the tentacular region. 



5. — Cereopsis Bocagei, nat. size. 



fi. — Two calices of the same, the one fully and the other partially expanded, 

 and showing the disposition of the spicula, x 12 diameters. 



7. — A single calyx in another condition of contraction. 



S.— A caljx contracted to its greatest possible extent. 



'.). — Coloured spicula from the basal tentacular region, showing their t • 

 angular disposition. 



10. — Isolated ones from the same region, x 50 linear. 



11. — Minute coloured spicular from the upper portion of the tentacles, 

 similarly enlarged. 



12. — Spicula of the general ccenenchyma. 



lo. — Half of one of the pinnate tentaculse, viewed supeiiorly and enlarged 

 2 diameters. 



