Crustacean larva stop after a single copepodid stage. Once the gonads develop, there are no further moults. Chalimus (plural chalimi) is a stage of development of a copepod parasite of fish, such as the salmon louse ("Lepeophtheirus salmonis"). "Chalimus" Burmeister, 1834 is also a synonym for "Lepeophtheirus" Nordmann, 1832. The single genus in the Facetotecta, "Hansenocaris", is only known from its larvae. They were first described by Christian Andreas Victor Hensen in 1887, and named "y-nauplia" by Hans Jacob Hansen, assuming them to be the larvae of barnacles. The adults are presumed to be parasites of other animals. Crustacean larva Crustaceans may
Egyptian goose 100 sightings just in 1Q 2018 as reported in ebird.org database. The Egyptian goose is believed to be most closely related to the shelducks (genus "Tadorna") and their relatives, and is placed with them in the subfamily Tadorninae. It is the only extant member of the genus "Alopochen", which also contains closely related prehistoric and recently extinct species. mtDNA cytochrome "b" sequence data suggest that the relationships of "Alopochen" to "Tadorna" need further investigation. The generic name is based on Greek ἀλώπηξ ("alōpēx"), "fox", and χήν ("chēn") "goose", referring to the ruddy colour of its back. The species name "aegyptius"