I'AMILIES AND GENEEA OF THE MADREPOEAEIA. 141 



II. Family FUNGHD^. 



(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 eehinulate. Calicos 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. 



The Alliances are fairly natural, and are th.e 



I. FUNGIOIDA. 



II. Cryptabacioida. 

 III. Herpolithoida. 



I. Alliance FUNGIOIDA. 

 Simple Fungidse, more or less discoid. 

 Genus Fungia, Dana. 



Subgenus Haliglossa, Ehr. 

 Genus Diafungia, Duncan. 

 Genus Micrabacia, Ed. & H. 



Grenus Fungia, Bmia, Zooph. p. 318 (1846), altered hy Milne- 

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

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

 p. 137. 



Syn. Lolactis, Agass. ; Fleuractis, Agass. ; Otenactis, 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, whicli is costu- 

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

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

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

 tbe larger, whicb reacb from the axial space to the more or less 

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

 solid. Tbe columella trabecular and rudimentary. Interseptal 

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



