''Dionda'' is the genus of desert

minnow Minnow is the common name for a number of species of small freshwater fish, belonging to several genus, genera of the family Cyprinidae and in particular the subfamily Leuciscinae. They are also known in Ireland as wikt:pinkeen, pinkeens. While ...

s, small fish belonging to the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Leuciscidae Leuciscidae is a family of freshwater ray-finned fishes, formerly classified as a subfamily of the Cyprinidae, which contains the true minnows. Members of the Old World (OW) clade of minnows within this subfamily are known as European minnow ...

, the shiners, daces and minnows. They are native to

fresh water Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salt (chemistry), salts and other total dissolved solids. The term excludes seawater and brackish water, but it does include ...

s in the United States and Mexico. Their range is centered in the

Rio Grande The Rio Grande ( or ) in the United States or the Río Bravo (del Norte) in Mexico (), also known as Tó Ba'áadi in Navajo language, Navajo, is one of the principal rivers (along with the Colorado River) in the Southwestern United States a ...

basin, but they also occur in associated systems, including Nazas– Aguanaval of north–central Mexico, and Nueces,

San Antonio San Antonio ( ; Spanish for " Saint Anthony") is a city in the U.S. state of Texas and the most populous city in Greater San Antonio. San Antonio is the third-largest metropolitan area in Texas and the 24th-largest metropolitan area in the ...

and

Colorado Colorado is a U.S. state, state in the Western United States. It is one of the Mountain states, sharing the Four Corners region with Arizona, New Mexico, and Utah. It is also bordered by Wyoming to the north, Nebraska to the northeast, Kansas ...

Texas Texas ( , ; or ) is the most populous U.S. state, state in the South Central United States, South Central region of the United States. It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the we ...

. These are small fish, no more than long, and overall brownish-silvery with a distinct dark horizontal line from the head to the tail base. They are believed to feed primarily on

algae Algae ( , ; : alga ) is an informal term for any organisms of a large and diverse group of photosynthesis, photosynthetic organisms that are not plants, and includes species from multiple distinct clades. Such organisms range from unicellular ...

Species

These are the species in this genus. Additionally, the species now placed in '' Tampichthys'' were formerly included in ''Dionda'' instead. * '' Dionda argentosa'' Girard, 1856 (Manantial roundnose minnow) * '' Dionda diaboli'' C. Hubbs & W. H. Brown, 1957 (Devils River minnow) * '' Dionda episcopa'' Girard, 1856 (Roundnose minnow) * '' Dionda flavipinnis'' (

Cope A cope ( ("rain coat") or ("cape")) is a liturgical long mantle or cloak, open at the front and fastened at the breast with a band or clasp. It may be of any liturgical colour. A cope may be worn by any rank of the Catholic or Anglican clerg ...

, 1880) * '' Dionda melanops'' Girard, 1856 (Spotted minnow) * '' Dionda nigrotaeniata'' (Cope, 1880) (Guadalupe roundnose minnow) * '' Dionda serena'' Girard, 1856 (Nueces roundnose minnow) * '' Dionda texensis'' Girard, 1856

References

* Pogonichthyinae Taxa named by Charles Frédéric Girard {{Leuciscinae-stub