PLATE V. 
Halysites gamboolicus, Eth. jil. 
Fig. 1. Pyriform corallum seen from above, exhibiting the dissimilar form of the fenestrules, 
and small autopores. 
Fig. i. Sub-hemispherical corallum seen from above obliquely. 
Halysites chillagoensis, Eth. jil. 
Fig. '•$. Portion of a corallum seen from above. 
Fig. 4. Portion of a corallum viewed longitudinally, and to some extent from above also. 
