PLATE XXVIII. 



Fig. 29a. Ventral view of Ceratiuin schranli, sp. nov. X 387, 

 Fig. 30. Dorsal view of same. X 387. 

 Fig. 31. Cell contents of same. X 387. 



ABBREVIATIONS. 



chr. — chromatophores. 

 n. — nucleus. 

 vac. — vacuole. 



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