Parasqualidus

Parasqualidus
Conservation status
Data Deficient  (IUCN 3.1) [1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Cypriniformes
Suborder:	Cyprinoidei
Family:	Gobionidae
Genus:	Parasqualidus A. Doi, 2000
Species:	P. maii
Binomial name
Parasqualidus maii A. Doi, 2000
Synonyms
(Species) Squalidus maii(Doi, 2000)

Parasqualidus is a genus of cyprinid fish endemic to Vietnam. It is monotypic, being represented by the single species Parasqualidus maii.

The fish was discovered in 1997 and named in honor of Mai Dinh Yen (b. 1933), ^[2] Professor of Hanoi Science University and freshwater fish taxonomist. ^{[3] [4]}

Characteristics

The genus Parasqualidus is similar to the genus Squalidus, but differentiated from other genera of Gobioninae by its cephalic lateral line system, namely the absence of supratemporal and preoperculomandibular canals. ^[5]

There were 4 specimens collected in 1997 measuring 33-37mm. ^[6]

Habitat

The original fish were found in a small river stream, about 25m wide and 50-100cm deep. The stream had a soft mud bottom.

Notes

1. Huckstorf, V. (2012). "Squalidus maii". The IUCN Red List of Threatened Species . 2012: e.T188018A1845820. doi: 10.2305/IUCN.UK.2012-1.RLTS.T188018A1845820.en . Downloaded on 26 December 2017.
2. "Ichthyologist Mai Dinh Yen". Vietnam Pictorial. 2011-10-28. Retrieved 22 February 2025.
3. Fishbase, Eponymy
4. Parasqualidus maii, a new genus and species of Cyprinid fish, p. 238.
5. Parasqualidus maii, a new genus and species of Cyprinid fish, p. 233.
6. Parasqualidus maii, a new genus and species of Cyprinid fish, p. 234.

References

Froese, Rainer; Pauly, Daniel (eds.). "Parasqualidus maii". FishBase . August 2011 version.

Doi, Atsushi (2000). "Parasqualidus maii, a new genus and species of cyprinid fish (Teleostei: Cyprinidae) from central Viet Nam" (PDF). The Raffles Bulletin of Zoology. 48 2. National University of Singapore: 233–240.