Crossword clue: ten-armed oval-bodied cephalopod with narrow fins as long as the body and a large calcareous internal shell

The most common answer is cuttle (6 letters).

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

Possible answers

cuttle 6 letters wn-def

ten-armed oval-bodied cephalopod with narrow fins as long as the body and a large calcareous internal shell

cuttlefish 10 letters wn-def

ten-armed oval-bodied cephalopod with narrow fins as long as the body and a large calcareous internal shell