Assertion: soft shell clam's siphon | /r/CapableOf | cover with thick dark epidermis
Facets:
Source sentences:
text: h. Valves gaping widely, particularly at siphonate end; pallial sinus small, not reaching over ⅓ of the way to the anterior muscle scar, not united with the pallial line; siphons united, extremely long and large, covered with thick dark epidermis.