Acanthocephala

described accepted species

• Appeltans et al: 450

known marine species

• Appeltans et al: 450

number of new species decribed 1999-2008

• Appeltans et al: 30

percent of marine species currently described

• Appeltans et al: 67 (max)
• Appeltans et al: 58 (minimum)

percent synonyms among marine species

• Appeltans et al: 25

total species (expert opinion)

• Appeltans et al: 670 (minimum)
• Appeltans et al: 770 (max)

total unknown marine species

• Appeltans et al: 220 (minimum)
• Appeltans et al: 320 (max)

undescribed marine species present in museum collections

• Appeltans et al: 20

undiscovered marine morphospecies

• Appeltans et al: 150

undiscovered species (molecular cryptic)

• Appeltans et al: 50 (minimum)
• Appeltans et al: 150 (max)