Penitella hopkinsi G. L. Kennedy & Armentrout 1989

body length

• McClain Bivalve Sizes: 22 mm (max)

body volume

• Body mass bivalves: 8.67 cm^3 (average)

geographic distribution

• United States Species List: United States
• Gulf of Alaska Species List: gulf of Alaska
• North Pacific Species List: north Pacific

habitat

• World Register of Marine Species: marine benthic

shell height, bivalve

• McClain Bivalve Sizes: 22.4 mm (max)

shell length, bivalve

• McClain Bivalve Sizes: 45 mm (max)

skeleton structure

• World Register of Marine Species: condensed
• World Register of Marine Species: exoskeleton
• World Register of Marine Species: condensed
• World Register of Marine Species: exoskeleton

wet body mass

• Body mass bivalves: 15 g (average)