Ctenophora

described accepted species

• Appeltans et al: 190

known marine species

• Appeltans et al: 190

number of new species decribed 1999-2008

• Appeltans et al: 3

percent of marine species currently described

• Appeltans et al: 38 (min)
• Appeltans et al: 60 (max)

percent synonyms among marine species

• Appeltans et al: 24

total species (expert opinion)

• Appeltans et al: 500 (max)
• Appeltans et al: 315 (min)

total unknown marine species

• Appeltans et al: 125 (min)
• Appeltans et al: 310 (max)

total unknown species (statistical model)

• Appeltans et al: 21002

undescribed marine species present in museum collections

• Appeltans et al: 25 (min)
• Appeltans et al: 50 (max)

undiscovered marine morphospecies

• Appeltans et al: 100 (min)
• Appeltans et al: 250 (max)

undiscovered species (molecular cryptic)

• Appeltans et al: 10 (max)