billfish Table of Contents Introduction References & Edit History Quizzes Ultimate Animals Quiz Animal Group Names Deadliest Animals Quiz Wild Words from the Animal Kingdom Vocabulary Quiz Match the Baby Animal to Its Mama Quiz Related Questions How do fish sleep? How do fish hear? Read Next Abundant Animals: The Most Numerous Organisms in the World Why Do Animals Have Tails? 9 Fish Named After Other Animals 9 Animals That Look Like Leaves What Is the Most Aerodynamic Animal? Discover 26 Decade-Defining Events in U.S. History 7 of History's Most Notorious Serial Killers 12 Greek Gods and Goddesses 11 Egyptian Gods and Goddesses How Many Electoral College Votes Does Each U.S. State Have? 10 Greatest Baseball Players of All Time Timeline of the Space Race, 1957–69 Contents Science Birds, Reptiles & Other Vertebrates Fish billfish bony fish grouping Ask the Chatbot a Question More Actions Print Cite verifiedCite While every effort has been made to follow citation style rules, there may be some discrepancies. Please refer to the appropriate style manual or other sources if you have any questions. Select Citation Style MLA APA Chicago Manual of Style Copy Citation Share Share Share to social media Facebook X URL https://www.britannica.com/animal/billfish Feedback Feedback Corrections? Updates? Omissions? Let us know if you have suggestions to improve this article (requires login). Feedback Type Select a type (Required) Factual Correction Spelling/Grammar Correction Link Correction Additional Information Other Your Feedback Submit Feedback Thank you for your feedback Our editors will review what you’ve submitted and determine whether to revise the article. External Websites Ask the Chatbot a Question Written and fact-checked by The Editors of Encyclopaedia Britannica Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors. The Editors of Encyclopaedia Britannica Article History Table of Contents Table of Contents Ask the Chatbot a Question Related Topics: gar marlin sailfish swordfish saury (Show more) billfish, any of a group of long-jawed fishes (usually swordfish, marlin, and allies) that sometimes includes the marine gar (q.v.). This article was most recently revised and updated by John P. Rafferty.