[3] Similar to other types of chitons, T. insignis also lives on hard rocks in the sub-tidal zone and can be found at depths up to 52 meters under water.

[5] The shell consists of eight valves which gives them flexibility while crawling through uneven rocks and also the ability to curl up like a ball when facing external threats.

[5] Some earlier observations showed that their reproductive period might be affected by the changes of external environment, such as water temperature or the abundance of food supply.

[5] Now the common hypothesis relates to the spring bloom, resulting in the increased number of phytoplankton and algae in the water.

A possible explanation could be that with the increased abundance of food source, T. Insignis may begin to enlarge their gonad size.