Chitons

Polyplacophora Gray 1821

Body symmetry

• Namigai et al 2014: bilaterally symmetric

cellularity

• Cellularity and growth form: multicellular

described accepted species

• Appeltans et al: 930

geographic distribution

• Mozambique Species List: Mozambique
• Anguilla Species List: Anguilla

mineralized skeleton contains

• Mineralogy: aragonite

mineralized tissue contains

• Mineralogy: calcium phosphate

number of dna records in ggbn

• GGBN data coverage: 217

number of specimens in ggbn

• GGBN data coverage: 190

percent of marine species currently described

• Appeltans et al: 86 (min)
• Appeltans et al: 90 (max)

percent synonyms among marine species

• Appeltans et al: 52

reproduction

• Fairbairn 2013: sexual reproduction

sexual system

• Fairbairn 2013: dioecious

total unknown marine species

• Appeltans et al: 100 (min)
• Appeltans et al: 150 (max)

undescribed marine species present in museum collections

• Appeltans et al: 50

undiscovered marine morphospecies

• Appeltans et al: 100 (max)
• Appeltans et al: 50 (min)

visual system

• Salvini Plawen and Mayr 1977: photoreceptor cell (adult)