130 



Magazine, London 



Craspedophyllum subcaespitosum. (Nicholson.) (Fig. 

 11.) [Heliophyllum subcaespitosum. Nicholson. Geological 



Dec. II.. Vol. I.. 1874. p. 58, PL IV.. 

 Fig. 9.) 



Distinguishing Ch a rac- 

 ters. — Cylindrical corallites, 

 which sometimes sliffhtlv 

 expand towards the calyx; 

 simple or compound form, 

 the latter consisting of two 

 or three buds around the 

 par e n t corallite ; parallel 

 ] k tsition of corallites : wrin- 

 kled epitheca ; secondary 

 wall and carinae. 



Fig. 11. Craspedophyllum subcaespitosum. 1 OUlld 111 the FllCrilial 



Encrinaljlimestone. (a) Single branch, Eigh- i- , o j.' er 



teen Mile Creek ; (b) specimen with several limeStOlie, at feeCtlOll • ) ; 

 branches. Morse Creek. Stud. Pal. Coll. Harv. . . , ~ . 



rniv. cat. 2.34. (Original.; also at Morse Creek. 



Genus FAYOSITES. Lamark. 



[ Ety. : Facus, honeycomb.] 

 ( Hist, des An. sans Vert., Tome II., p. 204.) 

 Corallum massive, more rarely branching, commonly 

 forming heads which may be a foot or more in diameter. 



Corallites prismatic, thin, united by their 

 walls, which are perforated by equi-distant 

 pores. Septa rudimentary or obsolete. 

 Numerous more or less regular tabula 1 

 divide the intrathecal space. Peritheca 

 present. 



Favosites argus. Hall. (Fig. 12.) 

 (111. Dev. Fobs., PI. XXXIV.) 



Distinguishing t ha racters. — Hemisphere ■ . 



pyriform. or snb-globular form: two sizes 



tea „,. of cell apertures, the larger circular and 



Sf^d £iS£S with prominent crenulated rims or peri- 



iii-nt of a portion of tlie , , , . 



ment 



surface (after Hall ) 



stomes, the smaller angular 



