THE BRYOZOA 335 



ABBREVIATIONS USED IN THE FIGURES. 

 av. — aviciilarium. 

 ar. — area. 

 ati. — articulation. . 

 ap. — aperture. 

 b. — beak. 

 d<75.— basal. 



<6//«;-.— bifurcation of branch. 

 d. — denticle. 

 enib. — embryo. 

 / a. — frontal avicularium. 

 fl. sp. — flattened spine. 

 /, — lines of calcification. 

 lat. — lateral. 

 in. — margin. 

 7nan — mandible. 

 mus. app. — muscular apparatus. 

 (T.— oecium. 

 op. — operculum. 

 or. — orifice. 

 ped. — peduncle. 

 r.f. — radical fiber. 

 sp. — spine. 

 zee. — zcecium. 



