Description of Cystodiscus elachistocleis sp. nov. (Cnidaria: Myxosporea) parasitizing the gallbladder of Elachistocleis cesarii from Brazil, based on morphological and molecular analyses

Numerous pseudoplasmodia containing myxospores belonging to the genus Cystodiscus were found in gallbladder of Elachistocleis cesarii from Mato Grosso State, Brazil. Herein, we describe elachistocleis sp. nov., using morphological and small subunit ribosomal DNA sequences. The mature ellipsoid ovoid, measuring average 10.6 (9.8–11.2) μm length 6.2 (5.6–6.6) width. Polar capsules pyriform equal size 3.6 (2.8–4.3) 2.6 (2.2–3.1) filaments had 2–4 coils. 3–5 transverse ridges. phylogenetic analysis showed nov. as a sister species cf. immersus 1, subclade formed by that parasitize amphibians gallbladder. This is first described parasitizing third