Assertion: bubble shell sea slug | /r/HasProperty | cephalaspidea
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Source sentences:
text: Note that if you see similar egg masses in the intertidal zone,I believe they are more likely to be from one of two other sea slug species that are also “bubble shell” sea slugs (order Cephalaspidea).
text: The Great Winged Sea Slug is a “bubble shell” sea slug (Cephalaspidea).