This species has been found at 25-250m depths. [details]
Specimens were collected at a depth of 36m. [details]
This species is named for Professor A. Richard Palmer, for his contributions to our understanding of morphology and ... [details]
The stomochord has a pit on the dorsal side. [details]
The proboscis coelom is filled with granulated cells, in contrast to other genus members. [details]
This species was named for the Shumagin Islands. [details]
This species is named after Sonora. [details]
Specimens were found in intertidal mud flats. [details]
Specimens were found in surface debris on hard shale rock. [details]
Specimens were found in sand flats at extreme low tide. [details]
~2cm in length [details]
~5.5cm [details]
Typically 1.2-1.5cm [details]