Onyx perfectus Cobb 1891

Body symmetry

• Namigai et al 2014: bilaterally symmetric

body length

• World Register of Marine Species: 688 µm (male, min)
• World Register of Marine Species: 55 µm (female, max)
• World Register of Marine Species: 45.5 µm (male, min)
• World Register of Marine Species: 42 µm (male, min)
• World Register of Marine Species: 45.5 µm (male, max)

body shape

• Altman 1965: vermiform

cellularity

• Cellularity and growth form: multicellular

geographic distribution

• World Register of Marine Species: North Sea
• World Register of Marine Species: Mediterranean Sea
• World Register of Marine Species: North Atlantic
• World Register of Marine Species: Black Sea
• United Kingdom Species List: United Kingdom

latitude

• OBIS environmental data records: 35.17 degrees (min)
• OBIS environmental data records: 58.24 degrees (max)

locomotion

• Burr and Robinson 2004: undulatory

longitude

• OBIS environmental data records: 32.98 degrees (max)
• OBIS environmental data records: -18.13 degrees (min)

number of records in gbif

• GBIF data coverage: 100

skeleton structure

• Mineralogy: soft bodied

water depth

• OBIS environmental data records: 3.93333 m (min)
• OBIS environmental data records: 44 m (max)

water dissolved o2 concentration

• OBIS environmental data records: 6.158 mL/L (min)
• OBIS environmental data records: 6.215 mL/L (max)

water nitrate concentration

• OBIS environmental data records: 3.639 µmol/l (min)
• OBIS environmental data records: 5.53 µmol/l (max)

water o2 saturation

• OBIS environmental data records: 99.914 percent (max)
• OBIS environmental data records: 98.888 percent (min)

water phosphate concentration

• OBIS environmental data records: 0.382 µmol/l (min)
• OBIS environmental data records: 0.449 µmol/l (max)

water salinity

• OBIS environmental data records: 34.671 psu (max)
• OBIS environmental data records: 34.145 psu (min)

water silicate concentration

• OBIS environmental data records: 2.49 µmol/l (max)
• OBIS environmental data records: 2.091 µmol/l (min)

water temperature

• OBIS environmental data records: 10.558 degrees celsius (min)
• OBIS environmental data records: 10.817 degrees celsius (max)