Related Clues:

• Mother has somehow eaten a sea cow
• Continued to excavate graves starting at the Mermaid?
• Gun dog stirred up a marine creature
• Shot entering something from behind sea creature
• Slow swimmer to take up position at opening of a hole
• Sea beast
• A neat me (anag) — large aquatic mammal
• Gun dog disturbed a mammal
• Large marine mammal
• Sea cow with forked tail
• Heavenly food and drink, say, for a sea creature
• Sea creature spread out, with head tucked behind tail
• Sea denizen manta's put in a tizzy with ease, it's said
• Sirenian mammal
• Fellow relaxed but not as sea creature appears