PLATE LVI. 



Individuals of some of the foregoing species. 



FIG. 



1. Polyclinum aurantium M. Ed\v. (p. 2) 



2. Amaroucium proliftrum M. Edvv. (p. 7) 



3. Amaroucium allncans M. Ed\v. (p. 9) 



4. Parascidia Forbesii Alder, (p. 19) 



5. Parascidia Flemingil Alder, (p. 20) 



6. Aplidium melleum sp. nov. (p. 26) 



7. Aplidium glomeratum sp. nov. (p. 27) 



8. Distoma vitreum M. Sai-s. (p. 43) 



All considerably magnified. 



