- ABOUT US
- ARTIFICIAL KEY TO ADULT GOODEIDS
- INVALID GENERA
Skiffia multipunctata is very variable in colouration.Typically (but not in all populations) can be found several (up to many) spots on the sides and the unpaired fins, sometimes in rows. Some populations show in the male gender dusky brown blotches, others deep black and big blotches, being not symmetrical on both sides of the fish. Some blotches cover nearly the complete side of the fish. The ground-colour goes from silvery to yellowish-brown, being superimposed (in some popuations) with striking yellow and orange. The edge of the unpaired fins and the nape can be coloured dark-gray to grayish-blue in courtship. The females are mainly grayish-brown without blotches or striking colours.
The species name is derived from the Latin and means "with many spots". It is therefore named after its spotted appearance of the types.
The habitats are small lakes, quiet river channels, spring-fed ponds and ditches over substrates of silt, mud, sand and rocks. Usually, the Splotched Splitfin prefers depths of less than 1m in clear to turbid water with currents none to moderate. The vegetation comprises green algae, Lemna, Typha and water hyacinths. In some habitats, there are plenty of roots from Taxodium, where this species is hiding and feeding from aufwuchs.
Distribution and ESU's:
This species lived originally in the ríos Lerma-Grande de Santiago basin (above El Salto de Juanacatlán) on the Pacific Slope, inlcuding the Lago de Chapala. Now it seems, it is restricted to the Río Duero system, a south eastern tributary to the lower Río Lerma, including several springs in the vicinity of Zamora de Hidalgo and Tangancicuaro de Arista. All known habitats are in the states of Jalisco and Michoacán.
ESU ist short for Evolutionarily Significant Unit. Each unit expresses an isolated population with different genetic characteristics within one species. ESU's can be defined by Molecular genetics, Morphology and/or Zoogeography and help in indicating different phylogenetic lineages within a species. The abbreviation for an ESU is composed of the first 3 letters of the genus, followed by the first 2 letters of the species name and an ongoing number in each species.
The following abbreviations are employed:
M = large metacentric chromsome (a result of Robertsonian fusion)
m = small metacentric chromsome (centromere at medium position)
sm = submetacentric chromsome (centromere at submedian position)
smst = submetacentric-subtelocentric chromosome (continous series)
st = subtelocentric chromosome (centromere at subterminal region)
stt = subtelocentric-acrocentric chromosome (continous series)
t = acrocentric chromosome (centromere at terminal region)
The Karyotype of Skiffia multipunctata, following Uyeno, Miller & Fitzsimons, 1983:
2n = 46 2M/ 2m/ 4st/ 38t
Status following other sources:
Endangered; Comment: Some decline since 2000
Langhammer crossbred Skiffia multipunctata and francesae in 1988. The hybrids had been fertile over generations, beautifully coloured with big black blotches on the sides. They have been called "Black Beauties". If some of these hybrids still exist in the United States is told differently and uncertain therefore. Besides the product of Characodon audax and Characodon lateralis, this is the only hybrid among Goodeids without being forced to.
All Skiffia-species are rare in nature and highly endangered. Skiffia multipunctata can currently be found at only 6 of historical 14 reported sites, all of them restricted to the Río Duero drainage. At least one extirpated population (from the Lago de Camécuaro) is still persisting in the hobby.
Xenendum multipunctatum Pellegrin, 1901
Goodea multipunctata Regan, 1907
Ollentodon multipunctatus Hubbs & Turner, 1937
The types come from lakes and ditches of the L`Agua Azul, vicinity of Guadalajara in Jalisco.
The maximum known SL is 72mm (Miller et al, 2005).
Status after IUCN:
Like in all Skiffia-species, the gut is about 2 to 3 times the length of the fish. The teeth are mainly bifid in both rows. Like its closest relative, Skiffia francesae, this species is grazing aufwuchs and algae, sometimes from roots of Taxodium.
Young have been captured from February to May, so the reproduction seems to be probably in spring.
Collection-number: Collection du Muséum National d'historíre naturelle de Paris, Cat. No. CMP-97/371-373.
The three types have total lengths of 62, 53 and 29mm, collected by M. L. Diguet, probably 1900.
PELLEGRIN, J. (1901): Poissons recueillis par M. L. Diguet dans lètat de Jalisco (Mexique). Bulletin du Muséum national d'histoire naturelle, no 7: pp 204 - 207