Table 1.

Comparison of features of iridovirids.

Sub-Qualification	Genus	Virion Size	Hosts	GC Content	DNA Methylation
Betairidovirinae	Iridovirus	120–130 nm	arthropods, particularly insects	29–32%	absent
Betairidovirinae	Chloriridovirus	180 nm	Diptera with aquatic larval stages, mainly mosquitoes	48%	absent
Alphairidovirinae	Ranavirus	150 nm	Reptilia, Amphibia and Osteichthyes	54%	present
Alphairidovirinae	Lymphocystivirus	198–227 nm	flounder, plaice, and dab	29.1–33%	present
Alphairidovirinae	Megalocytivirus	140–200 nm	sea fish	54.8%	present