Plate 122. 



I'll,. 1. Olliilid jiiirijitnii; abudinal view, p. 432. 



'2. iU-hiiKislcr stcrcosomus ; actlnal surface of type, p. 430. 



3. Same: aliactinal surface of type. 



4. JJcliiiKish r cdllosiis : aliadiiial sui'faceof ymiiii: sipccimen. p. 42S. 

 "). Saiiic; actiiial surface. 



669 



