Humeral spines are ventrolateral extensions of the humeral crista ventralis. These structures are present in the humerus of some frogs (anurans). The majority of anuran species that present humeral spines are glassfrogs (family Centrolenidae) but humeral spines have been reported in various other species of different families of frogs, including Ceratophryidae and Hylidae.
- William E. Duellman; Linda Trueb (1994). Biology of Amphibians. JHU Press. p. 55. ISBN 978-0801847806.
- "Glass Frogs: Centrolenidae - Behavior And Reproduction - Eggs, Species, Male, and Males - JRank Articles". Animals.jrank.org. Retrieved 2013-01-04.
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