290 ZOOPHYTES. 



Fungia cyclolites, Lamk., ii. 371, No. 3. , Blainv., Diet, des Sci. Nat., xvii. 216, 



, Lamouroux, Encyc., 418. and Man. 337. 



, Leuckart, op. cit., 46. 



2. FUNGIA TENUIS. (Dana.} 



F. pumila, orbicularis, planiuscula, undulata, 1 J-2"' crassa. Corallum 

 tenue fragileque, margine subacutum; lamellis tenuissimis, subtilis- 

 sime denticulatis, incequalibus; subtus, subtiliter radiato-striatum, sca- 

 briculum. 



Small, orbicular, nearly flat, and undulate, l to 2 lines thick. 

 Corallum thin and fragile, margin subacute, lamellae very thin, 

 very finely denticulate, unequal : below very minutely radiato- 

 striate, and a little scabrous. 



Plate 18, fig. 1, outline of a vertical section, natural size. 



Pacific Ocean, and probably the Paumotu Archipelago. Exp. Exp. 



The specimen is one and a quarter inches in diameter and quite 

 thin, with a fragile margin. It may be a young individual, but dif- 

 fers in its very thin corallum from any known species; for the young 

 of the species of Fungiee are thicker in proportion than adult speci- 

 mens. It is apparently near the cyclolites, but is not very convex 

 above, and the lamellae are not crenulate. 



3. FUNGIA GLANS. (Dana.) 



F. pumila, orbicularis, excelse conoido-rotundata, l" lata et alta, subtus 

 concava; media crassima. Corallum lamellis confertis, subtiliter den- 

 ticulatis: subtus subtiliter striatulum et scabriculum. 



Small, orbicular, high conoido-rotundate, 1J inches broad and as 

 much in height, below neatly concave ; very stout at middle. Co- 

 rallum with crowded lamell&e, very finely denticulate: under surface 

 very delicately striate and minutely scabrous. 



Plate 18, fig. 2, outline of a vertical section, natural size. 



This singular species is as high as broad, and has the concavity 



