Cachorrito de la Trinidad

The La -Trinidad- pupfish ( Cyprinodon InMemoriam ) (English: Charco Azul Pupfish; Spanish: Cachorrito de la Trinidad ), an extinct freshwater fish species of the genus is Wüstenkärpflinge ( Cyprinodon ). She is known only from a single male that was captured on 17 March 1984 in source Ojo la Trinidad in Aramberri in the Mexican state of Nuevo León. The specific epithet InMemoriam refers to the fact that the species was extinct, as it was described in 1993.

Features

The only specimen has a total length of 7.5 cm. The fourth Ceratobranchiale has up to four teeth, at least one on each side. The length of the short upper jaw is contained 0.68 times in the length of the anal-fin base. The postdorsale ( distance of the dorsal fin to the tail fins stalk) and postanale ( distance of the anal fin to the tail fins handle) length is contained 0.8 times in the length of the tail fin shaft. Head and body are gray-blue. Strips are not present. The eye diameter is 1.2 times present in the length of the anal fin base. The head length is available 3 times in the standard length. The length of the short Analflossenbasis is 3.3 times in head length available. The short dorsal fin reaches the front third of the caudal pedicle.

Habitat

The source Ojo la Trinidad originally covered an area of ​​10,000 m². At the time of discovery of La -Trinidad- Wüstenkärpflings she was only 1 to 2 m deep and was fed by rain. A vegetation was missing and the reason was muddy. Since 1985 it has dried. The water was colorless and the water temperature was 19 ° C.

Extinction

The habitat of La -Trinidad- Wüstenkärpflings is now completely destroyed. Search by type since 1984 were unsuccessful.