FAMILIES AND GENEEA OF THE MADEEPOEABIA. 



141 



II. Family FUNGID^. 



(Subfamily Fungince (pars), Ed. & H. Hist. Nat. des Corall. 

 vol. iii. p. 4, 1860.) 



Simple or colonial forms, usually depressed, with the septa solid 

 or occasionally porous. Synapticula crossing the inter septal loculi 

 and uniting the septa without the presence of dissepimental 

 endotheca. Wall more or less synapticulate or special, perforated 

 and echinulate. Calices with radiating septa in the simple forms ; 

 with or without radiating lamellae, along a central axial line, 

 or scattered in the colonial forms. Tentacles short, scattered, 

 sometimes obsolete. 



This family stands very much by itself, and its genera are 

 remarkable for their calicular structures and developments. 



Tbe Alliances are fairly natural, and are the 



I. FUNGIOIDA. 



II. Cryptabacioida. 



III. Herpolithoida. 



I. AlHance FUNGIOIDA. 

 Simple Fungidse, more or less discoid. 



Genus Fungia, Dana. 



Subgenus Haliglossa, Ehr. 

 Genus Diafungia, Duncan. 

 Genus Micrabacia, Ed. & H. 



G-enus Fuistgia, Dana, Zooph. p. 318 (1846), altered ly Milne- 

 Edwards Sf Jules Haime, Hist. Nat. des Corall. vol. iii. p. 5 

 (1860), amended; Duncan, 'Proc. Linn. Soc., Zool. vol. xvii. 

 p. 137. 



Syn. Zolactis, Agass. ; Pleuractis, Agass. ; Ctenactis, Agass. 



The corallum is simple and free in adult age, circular, subcir- 

 cular, elliptical, lobed, or angular in outline ; depressed or hemi- 

 spherical, with a horizontal or dome-shaped base, which is costu- 

 late and perforate more or less. The calice conforms to the shape 

 of the superficies of the corallum. Septa numerous, plain, lobed, 

 dentate or spinulose on their free edge-, the smaller uniting with 

 the larger, which reach from the axial space to the more or less 

 turned-down calicular edge. Small septa trabecular, the large 

 solid. The columella trabecular and rudimentary. Interseptal 

 loculi deep, and occupied by vertical or slanting rows of stout 



