Danionella priapus

{{Short description|Species of fish}}

{{Speciesbox

| image = Danionella priapus.jpg

| status = DD

| status_system = IUCN3.1

| status_ref = {{Cite journal | author = Ng, H.H | title = Danionella priapus | journal = The IUCN Red List of Threatened Species | volume = 2010 | page = e.T170118A6720294 | publisher = IUCN | date = 2010 | url = http://www.iucnredlist.org/details/170118/0 | doi = 10.2305/IUCN.UK.2010-4.RLTS.T170118A6720294.en | access-date = 14 January 2018| doi-access = free }}

| genus = Danionella

| species = priapus

| authority = Britz, 2009

}}

Danionella priapus is a species of Danionella endemic to India.{{FishBase |genus=Danionella |species=priapus |month=November |year=2014}} It is sexually dimorphic and, like other species in the genus, possesses a skeleton with fewer bones than the closely related zebrafish. However, it has a number of distinguishing features which differentiate it from others in the genus, with the most notable example being the conically projecting genital papilla between the funnel-shaped pelvic fins of males.Britz, Ralf. “Danionella Priapus, a New Species of Miniature Cyprinid Fish from West Bengal, India (Teleostei: Cypriniformes: Cyprinidae).” Zootaxa, vol. 2277, no. 2277, Magnolia Press, 2009, pp. 53–60, https://doi.org/10.11646/zootaxa.2277.1.4.