(definition) by Webster 1913 Wed Dec 22 1999 at 2:45:57

Ros*trif"e*ra (?), n. pl. [NL., fr. L. rostrum beak + ferre to bear.] Zool.

A division of pectinibranchiate gastropods, having the head prolonged into a snout which is not retractile.

 

© Webster 1913.

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