ITS 



Genus REPTAR1A. Rolle. 



I Ivi'v. : Eepto, to creep.] 

 (1851: Leonhard and Bronn, Neues Jahrbuch, p. 180.) 



Bryozoum creeping and adher- 

 ing to foreign bodies. A central 

 stem or rachis gives off lateral 

 tabes, and at irregular intervals, 

 branches. The lubes are slightly 

 sinuous and nearly parallel with 

 the rachis below, but farther up 

 they diverge more and more. 



Rep t a r i a s t o l o n i f e r a . 

 Iiolle. (Fig. 7<>.) (Pal. N. Y., 

 Vol. VI, p. 274, PI. LXV.) 



Distinguishing- Characters. — 

 Incrusting habit; equal lateral 

 tubes, of similar length; slight 

 annulations of tubes; last cell 

 terminal. 



Found in the Demissa bed, at 



Fig. 76. Reptaria stolonifera. Frond Section 5, attached to ail Ol'tho- 

 incruBting Orthoceras, natural siz^- ; 



and a portion enlarged, x (i (after Hall ceras ( Olie specimen ). 

 ami Simpson). 



Genus HEDERELLA. Hall. 



[Ety. : Hedera, ivy.] 

 (1881: Trans. Albany Inst.. Vol. X., p. 1!)4.) 



"Zoarium parasitic, consisting of a, filiform tubular axis, 

 with opposite or alternate lateral budding of simple tubular 

 cells; also of lateral extensions, continuing in the same 

 manner of growth ;is the initial axis." 



Hedebella canadensis. (Nicholson.) (Fig. 77.) (Pal. 

 N. V.. Vol. VI.. p. 277, PI. LXV.) 



Distinguishing Characters.— Sub-cylindrical cell tubes, 

 transverse section oval; lubes usually alternating; tubes 

 either in contacl with main axis, or diverging from it; 

 general prolific development of tubes. 



