COUCH: DISEASES AND PARASITES OF PENAEID SHRIMPS 



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Figure l.—Bacuhvirus virions in nucleus of hepatopancreatic cell of pink shrimp; note rod form (arrows) and 

 outer envelope surrounding nucleocapsid (electron micrograph), x 70,000. 



Figure 2. — Polyhedral inclusion body (PIB) in virus-infected nucleus; note characteristic triangular form, and 

 rod-shaped virions in PIB (arrows); also note heterochromatin diminution and granular nucleoplasm. x22,260. 



