Larval digestive tract of three Kalophrynus species, stages 37–38 (in preservative). A K. interlineatus with gut filled with fine detritus; B K. honbaensis with extended larval stomach and gut filled with ingested yolk; C K. cryptophonus with a whole partially digested egg in the larval stomach. Scale bar: 1 mm.

  Part of: Vassilieva AB, Nguyen TV (2023) Restricting living space: Development and larval morphology in sticky frogs (Microhylidae: Kalophrynus) with different reproductive modes. Vertebrate Zoology 73: 367-382.