Tonicella undocaerulea  (Blue-Lined Chiton)

© Aaron Baldwin (Photo ID #2276)

Photographer's Submitted Details

Photo Location	John Brown's Beach, Sitka Sound, Alaska
Photographer	Aaron Baldwin
Habitat	Lowest intertidal and subtidal
Photo Date
Upload Date	October 27, 2007
Elevation (m)
Latitude
Longitude
Photo ID #	2276
Comments	This beautiful chiton is characterized by the bright turquoise lines on the plates. Unfortunately these quickly turn white when preserved. Similar to the Red-lined chiton, T. lineata, the best way to separate the two is to look at the headplate (in this photo bottom left corner). In T. undocaerulea the concentric lines are not bordered by very fine, dark brown lines as the are in T. lineata. Also T. undocaerulea tends to be slightly more elongate than is T. lineata. Photo taken with Pentax Optio