TRIBE I.—ASTR^EACEA, 
43 
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polyps large, a to ^ an inch broad. Corallum above coarsely lamello-striate 
I and strongly spinoso-dentate ; calicles 3 to 6 lines broad, somewhat prominent, 
j occasionally hemispherical, often wholly immersed, 
i East Indies. 
6. EceiNOPORA HORRiDA {Dana). — Ramose, branches crowded, tortuous, 
sometimes coalescing; umber-colored, without tentacles, but with small scat- 
[ tered elongate tubercles. Corallum with the branches f-4- of an inch thick, 
branchlets rudely attenuate and apex often laciniate and alate ; calicles tumid, 
I 2 lines broad, echinate ; cells 15 to 18 rayed ; interstices between cells scarcely 
i striate, but mostly with scattered spines. 
Plate 17, fig. 4, corallum, natural size; 4a, animal enlarged; 4&, transverse 
section, enlarged; 4c, enlarged cell. — Feejee Islands. — Exp. Exp. 
Family III.— FUNGID^E. 
Astrseacea having depressed animals, either quite simple, or 
aggregato-gemmate ; disks without circumscribed limits, and in 
aggregate species, all every way confluent, without interstices ; 
tentacles short, scattered, sometimes obsolete, and when con- 
tracted, not covered. Coralla without true cells; surface la- 
mello-striate, and usually stellately so, stars not circumscribed ; 
in aggregate coralla, the lamella- extending uninterruptedly from 
centre to centre. 
The generic divisions of this group, depend on the mode of 
growth and budding, and may be distinguished as follows : 
Arrangement of the genera of Fungidce. 
I. Free — not budding ; a central oririme above. 
1. Fungia. Corallum lamello-radiate above, tuberculato-radiate below. 
2. Cyclolites. Corallum lamello-radiate above, concentric lines of growth 
below. 
II. F'ee — explanato-gemmate. 
3. Herpetolithus. A continuous medial line of large polyps, with others 
smaller, scattered either side ; a distinct circle of tentacles to each polyp- 
mouth. Corallum with a long medial trench (compound oririme) ; surface 
consisting of short denticulate lamellae scarcely at all radiate, half an inch to 
an inch long, none extending from the centre to the circumference. 
