How to Distinguish from Similar Species: The black chiton is easily distinguished from other chitons by the texture and color of the girdle.
Geographical Range: Alaska to Santa Barbara, Ca and in Kamchatka
Depth Range: Very common in the middle and low inertidal zones
Habitat: They attach to rocks where they are exposed to heavy wave action.
History: There is
a large amount of molecular and genetic research done on Katharina.
The K. tunicata is diploid and has a haploid number
The changes in organic composition of the tissues and systems along
the life cycle of the chiton have also been studied. Lipids
proteins levels are high through the majority of the life cycle, but
decrease dramatically prior to spawning. The organic
of most other systems remain fairly constant seasonally.
plates can be repaired in just a few weeks. The diet of the
chiton includes brown and red algae as well as benthic
is sexual and full maturity just over a year. The entire life
averages 3 years.
Marine Invertebrates of the Pacific Northwest. University of