Assertion: crab's tail | /r/HasProperty | telson
Facets:
Source sentences:
text: On average, males of C. rotundicauda are about 30 cm (12 in) long, including a tail (telson) that is about 15 cm (5.9 in), and their carapace (prosoma) is about 15 cm (5.9 in) wide.
text: The long, rigid tail is called the telson.