''Crossarchus'' is a mongoose

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

, commonly referred to as kusimanse, often cusimanse, mangue, or dwarf mongoose. They are placed in the subfamily Mungotinae, which are small, highly social mongooses.

Range and habitat

Members of this genus are found in the swamplands and

forest A forest is an ecosystem characterized by a dense ecological community, community of trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, ...

s of central and western

Africa Africa is the world's second-largest and second-most populous continent after Asia. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth's land area and 6% of its total surfac ...

, in the countries of

Ghana Ghana, officially the Republic of Ghana, is a country in West Africa. It is situated along the Gulf of Guinea and the Atlantic Ocean to the south, and shares borders with Côte d’Ivoire to the west, Burkina Faso to the north, and Togo to t ...

Ivory Coast Ivory Coast, also known as Côte d'Ivoire and officially the Republic of Côte d'Ivoire, is a country on the southern coast of West Africa. Its capital city of Yamoussoukro is located in the centre of the country, while its largest List of ci ...

Liberia Liberia, officially the Republic of Liberia, is a country on the West African coast. It is bordered by Sierra Leone to Liberia–Sierra Leone border, its northwest, Guinea to Guinea–Liberia border, its north, Ivory Coast to Ivory Coast–Lib ...

, and

Sierra Leone Sierra Leone, officially the Republic of Sierra Leone, is a country on the southwest coast of West Africa. It is bordered to the southeast by Liberia and by Guinea to the north. Sierra Leone's land area is . It has a tropical climate and envi ...

Species

Diet

They feed on

insect Insects (from Latin ') are Hexapoda, hexapod invertebrates of the class (biology), class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (Insect morphology#Head, head, ...

larva A larva (; : larvae ) is a distinct juvenile form many animals undergo before metamorphosis into their next life stage. Animals with indirect development such as insects, some arachnids, amphibians, or cnidarians typically have a larval phase ...

e, small

reptile Reptiles, as commonly defined, are a group of tetrapods with an ectothermic metabolism and Amniotic egg, amniotic development. Living traditional reptiles comprise four Order (biology), orders: Testudines, Crocodilia, Squamata, and Rhynchocepha ...

crab Crabs are decapod crustaceans of the infraorder Brachyura (meaning "short tailed" in Greek language, Greek), which typically have a very short projecting tail-like abdomen#Arthropoda, abdomen, usually hidden entirely under the Thorax (arthropo ...

s and

berries A berry is a small, pulpy, and often edible fruit. Typically, berries are juicy, rounded, brightly colored, sweet, sour or tart, and do not have a stone fruit, stone or pit (fruit), pit although many wikt:pip#Etymology 2, pips or seeds may be p ...

. They use their claws and snouts for digging in leaf litter, under rotted trees and stones for the insects and larvae. They will also wade into shallow

stream A stream is a continuous body of water, body of surface water Current (stream), flowing within the stream bed, bed and bank (geography), banks of a channel (geography), channel. Depending on its location or certain characteristics, a strea ...

s looking for

freshwater crab Around 1,300 species of freshwater crabs are distributed throughout the tropics and subtropics, divided among eight family (biology), families. They show direct development and maternal care of a small number of offspring, in contrast to marine c ...

s. In most areas where members of ''Crossarchus'' live, they are the numerically dominant members of the forest carnivore community.

Reproduction

Females are polyestrous and if not mated will come into heat nine times in a year. Litters range from 2-3 per year. The young can open their eyes in about twelve days, eating solid food in three weeks and have adult hair in five weeks.

Behavior

''Crossarchus'' live in groups of 10 to 24. One to three families live in a group. The families are made up of the mating pair and the young. They are diurnal, and will wander throughout their territories constantly, never staying in one place too long. In their wanderings they will create temporary shelters for themselves. As they do not occupy permanent den sites, the young are not able to keep up with the group for several weeks and must be carried to different foraging spots. Individuals in the group take turns carrying the young from place to place and also help feed them. Since the sociable kusimanses do not live in open habitat, they maintain contact in the dense rainforest understory by giving constant whistling calls while traveling.

Local names

They are known in French as ''Mangouste brune'' and in German as ''Dunkelkusimanse''.

References

{{Taxonbar, from=Q981308 Mongooses of Sub-Saharan Africa Taxa named by Georges Cuvier