292 ZOOPHYTES. 



5. FUNGIA AGARICIFORMIS. (Lamarck.) 



F. grandis, orbicularis, aut planiuscula aut valde convexa, scepe paulo 

 undulata ; tentaculis J" longis. Corallum lamellis subtiliter denticu- 

 latis, tenuibus, incequalibus, dente tentaeulato obsolete ; subtus lamello- 

 striatum, striis spinosis, subcequalibus, in medio spinulis raw seriatis, 

 papilliformibus, minutis, interdum obsokscentibus. 



Large, orbicular, either nearly flat or much convex, often a little un- 

 dulate ; tentacles of an inch long. Corallum with the lamellae 

 finely denticulate, thin, unequal, tentacular tooth obsolete ; below, 

 lamello-striate, striae spinose, subequal, and about the centre, spines 

 not in series, papilliform, minute, and sometimes obsolescent. 



Plate 18, fig. 5, outline of a lamella, above and below. 



The East Indies Singapore and Sooloo Sea. Exp. Exp. Red 

 Sea. Forskal. 



This very common species is distinguished by its finely denticulate 

 lamellae, not flexuous, and without a distinct tentacular tooth. The 

 corallum is often undulate and nearly flat on both surfaces, and again 

 is very convex, with a concavity below two inches deep. One large 

 specimen in the Expedition collections is seven and a half inches in 

 diameter, and averages three-fourths of an inch in thickness, with the 

 centre one and a quarter inches thick. About the centre below, the 

 spines or papillse are scattered, except in quite small specimens. 



j3. tenuifolia. (Plate 18, fig. 6.) A small specimen from Tahiti, 

 presenting the general characters of the agariciformis, but much more 

 delicately denticulate. It is two and a half inches in diameter, and 

 from one-third to two-thirds of an inch thick ; the lamellss are very 

 thin, and the spines of the under surface are much finer and more 

 acute than in the Singapore specimens ; about the centre it is barely 

 scabrous. 



Fungus marinus, lamellis tenuibus, subti- , Esper, Pflanz., i. 66, tab. 1. A poor 



liter dentatis, &c., Seba, Thes. iii. tab. figure of a worn specimen. 



Ill, No. 1. No. 2 is a smaller spe- , Ellisand Solander, 149, tab.28, fig. 1. 



cimen. Fungia agariciformis, (in part,) Lamk. ii. 

 Mad.fungites, Forskal, Anim. Egypt., 134, 372, No. 5. 



tab. 42. An excellent figure of the ani- , Lamour., Exp. 52, tab. 28, fig. 1; 



mal, the first and best hitherto given. Encyc., 419. 



