INVERTEBRATE ANIMALS. 9 



Group 24.— Genus DENDEOPHYLLIA (Blainville) and 

 allies. Bsv^pov, a tree ; <p6xxtov, a leaf. Estimated number 

 of species : recent, 28; British, ; fossil, 31 ; Kainozoic. 

 The Corals of this group grow in waters of all 

 temperatures. 



IT D. nigrescens from Singapore, and D. ramea from 

 the Mediterranean : the latter attains a height 

 of five feet, and possesses an agreeable frag- 

 rance. 



C^trtr CabU €mt. 



The MarTi ^ indicates specimens or other illustrations exhibited in the Cases. 



Division APOROSA. Coral compact in substance. 

 Family FUNGID^. Coralla chiefly explanate ; polype 

 centres not circumscribed. 



Group 25. — Genus AGARICIA (Lamarck) and allies. 

 'ayotpixos, a mushroom. Estimated number of species : 

 recent, 17 ; British, ; fossil, 13 ; chiefly Kainozoic. 



IT Species from the West Indies and the Pacific. 

 A. undata grows on the vertical sides of 

 rocks, like a large flower with the corolla fully 

 expanded, and beautifully ripple-marked. 



Group 26.— Genus LOPHOSERIS (Milne Edwards) and 

 allies. Xo<pos, a crest ; o'spi;, a plant. Lamarck's 

 name for this genus, Pavonia, alludes to the expanded 

 disc of the coral, with polype-mouths in place of the 

 eye-spots of the Peacock's tail. Estimated number of 

 species : recent, 24 ; British, ; fossil, 42. 



IT Examples from the Indian and Pacific Oceans. 



Upper Compartment. 



L. prcetorta, curiously intricate in its growth. 



