Spotted-necked otter

Species of carnivore

Spotted-necked otter[1]
Conservation status

Near Threatened (IUCN 3.1)[2]
CITES Appendix II (CITES)[2]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Family: Mustelidae
Genus: Hydrictis
Pocock, 1921
Species:
H. maculicollis
Binomial name
Hydrictis maculicollis
(Lichtenstein, 1835)
Distribution of spotted-necked otter
Synonyms

Lutra maculicollis

The spotted-necked otter (Hydrictis maculicollis), or speckle-throated otter, is an otter native to sub-Saharan Africa.

Description

Skull of a spotted-neck otter

The spotted-necked otter is usually chocolate to reddish brown and marked with creamy or white blotches over the chest and throat. The head is broad with a short muzzle, small rounded ears, and a hairless nose pad. The teeth are adapted for consuming fish, with large sharp upper canine teeth, curved lower canines, and sharp carnassial teeth. The jaws are similarly adapted, with the mandibular fossa fitting so snugly into the condyle on the lower jaw that the latter cannot move sideways, making it easier to capture and hold fish. It is a relatively small species, with males measuring 71 to 76 cm (28 to 30 in) from nose to rump, and weighing 5.7 to 6.5 kg (13 to 14 lb), while females are 57 to 61 cm (22 to 24 in) and 3.0 to 4.7 kg (6.6 to 10.4 lb). The tail is long and muscular, measuring 39 to 44 cm (15 to 17 in) in both sexes. It is sleek and has webbed paws. Females have two pairs of teats, and while males have a large scrotum, the penis is hidden beneath the skin, to reduce drag while swimming.[3]

Up to five subspecies have previously been identified, these most likely represent a natural variation in appearance between individuals, and no subspecies are currently recognised.[3]

Distribution and habitat

Spotted-necked otter swimming in Lake Tanganyika.

The spotted-necked otter inhabits lakes and larger rivers throughout much of Africa south of 10°N. It is common in Lake Victoria and across Zambia, but is absent in the Zambezi below Victoria Falls, Zambia.[4] It does not venture into salt water.[3]

Behavior and ecology

The spotted-necked otter is very vocal, uttering high, thin whistles and rapid, shrill chatters.[5] It sometimes lives in family groups, but appears to be social only under certain conditions. Males and females are separated for at least part of the year.[4] They normally hunt alone, except when mothers are training their young, and are not territorial, sheltering through the night in short burrows, rock crevices, or patches of dense vegetation. On land, they travel mainly over regular paths, and rarely move more than 10 m (33 ft) from river or lake banks.[3] Both mark these paths by "sprainting" sites, in which they habitually defecate and urinate.[6]

The spotted-necked otter is diurnal and appears to hunt entirely by sight using short dives of less than 20 seconds each in clear water with good visibility.[3] It carries larger prey ashore, but eats smaller prey while treading water.[6] It primarily eats fish, typically less than 20 cm (7.9 in) in length, but also frogs and small crustaceans, especially when fish is in short supply.[6]

The female bears a litter of up to three young after a gestation period around two months. The young are born blind and helpless, and the mother cares for them for almost a year.[5][3]

Known predators of the spotted-necked otter include lions, crocodiles and African fish eagles.[3]

Conservation

The spotted-necked otter is in decline, mostly due to habitat destruction and pollution of its clear-water habitats. It is hunted as bushmeat.[2]

References

  1. ^ Wozencraft, W. C. (2005). "Order Carnivora". In Wilson, D. E.; Reeder, D. M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. pp. 532–628. ISBN 978-0-8018-8221-0. OCLC 62265494.
  2. ^ a b c Reed-Smith, J.; Jacques, H.; Somers, M.J. (2015). "Hydrictis maculicollis". IUCN Red List of Threatened Species. 2015: e.T12420A21936042. doi:10.2305/IUCN.UK.2015-2.RLTS.T12420A21936042.en. Retrieved 24 January 2022.
  3. ^ a b c d e f g Larivière, S. (2002). "Lutra maculicollis" (PDF). Mammalian Species. 712: 1–6. doi:10.1644/1545-1410(2002)712<0001:LM>2.0.CO;2. S2CID 198968980.
  4. ^ a b Estes, R. D., ed. (1992). The Behavior Guide to African Mammals : Including Hoofed Mammals, Carnivores, Primates. University of California Press. p. 437. ISBN 978-0-520-08085-0.
  5. ^ a b Procter, J. (1963). "A contribution to the natural history of the spotted-necked otter (Lutra maculicollis Lichtenstein) in Tanganyika". East African Wildlife Journal. 1 (1): 93–102. doi:10.1111/j.1365-2028.1963.tb00180.x.
  6. ^ a b c Kruuk, H. & Goudswaard, P.C. (1990). "Effects of changes in fish populations in Lake Victoria on the food of otters (Lutra maculicollis Schinz and Aonyx capensis Lichtenstein)". African Journal of Ecology. 28 (4): 322–329. doi:10.1111/j.1365-2028.1990.tb01167.x.

External links

  • ITIS Standard Report
  • Otter Specialist Group report
  • v
  • t
  • e
Extant Carnivora species
Suborder Feliformia
Nandiniidae
Nandinia
  • African palm civet (N. binotata)
Herpestidae
(Mongooses)
Atilax
  • Marsh mongoose (A. paludinosus)
Bdeogale
  • Bushy-tailed mongoose (B. crassicauda)
  • Jackson's mongoose (B. jacksoni)
  • Black-footed mongoose (B. nigripes)
Crossarchus
  • Alexander's kusimanse (C. alexandri)
  • Angolan kusimanse (C. ansorgei)
  • Common kusimanse (C. obscurus)
  • Flat-headed kusimanse (C. platycephalus)
Cynictis
  • Yellow mongoose (C. penicillata)
Dologale
  • Pousargues's mongoose (D. dybowskii)
Helogale
  • Ethiopian dwarf mongoose (H. hirtula)
  • Common dwarf mongoose (H. parvula)
Herpestes
  • Angolan slender mongoose (H. flavescens)
  • Egyptian mongoose (H. ichneumon)
  • Somalian slender mongoose (H. ochracea)
  • Cape gray mongoose (H. pulverulenta)
  • Common slender mongoose (H. sanguinea)
Ichneumia
  • White-tailed mongoose (I. albicauda)
Liberiictus
  • Liberian mongoose (L. kuhni)
Mungos
  • Gambian mongoose (M. gambianus)
  • Banded mongoose (M. mungo)
Paracynictis
  • Selous's mongoose (P. selousi)
Rhynchogale
  • Meller's mongoose (R. melleri)
Suricata
  • Meerkat (S. suricatta)
Urva
  • Small Indian mongoose (U. auropunctata)
  • Short-tailed mongoose (U. brachyura)
  • Indian grey mongoose (U. edwardsii)
  • Indian brown mongoose (U. fusca)
  • Javan mongoose (U. javanica)
  • Collared mongoose (U. semitorquata)
  • Ruddy mongoose (U. smithii)
  • Crab-eating mongoose (U. urva)
  • Stripe-necked mongoose (U. vitticolla)
Xenogale
  • Long-nosed mongoose (X. naso)
Hyaenidae
(Hyenas)
Crocuta
  • Spotted hyena (C. crocuta)
Hyaena
  • Striped hyena (H. hyaena)
Parahyaena
  • Brown hyena (P. brunnea)
Proteles
  • Aardwolf (P. cristata)
Felidae
Large family listed below
Viverridae
Large family listed below
Eupleridae
Small family listed below
Family Felidae
Felinae
Acinonyx
  • Cheetah (A. jubatus)
Caracal
  • African golden cat (C. aurata)
  • Caracal (C. caracal)
Catopuma
  • Bay cat (C. badia)
  • Asian golden cat (C. temminckii)
Felis
  • Chinese mountain cat (F. bieti)
  • Domestic cat (F. catus)
  • Jungle cat (F. chaus)
  • African wildcat (F. lybica)
  • Sand cat (F. margarita)
  • Black-footed cat (F. nigripes)
  • European wildcat (F. silvestris)
Herpailurus
  • Jaguarundi (H. yagouaroundi)
Leopardus
  • Pampas cat (L. colocola)
  • Geoffroy's cat (L. geoffroyi)
  • Kodkod (L. guigna)
  • Southern tiger cat (L. guttulus)
  • Andean mountain cat (L. jacobita)
  • Ocelot (L. pardalis)
  • Oncilla (L. tigrinus)
  • Margay (L. wiedii)
  • Nariño cat (L. narinensis)
Leptailurus
  • Serval (L. serval)
Lynx
  • Canada lynx (L. canadensis)
  • Eurasian lynx (L. lynx)
  • Iberian lynx (L. pardinus)
  • Bobcat (L. rufus)
Otocolobus
  • Pallas's cat (O. manul)
Pardofelis
  • Marbled cat (P. marmorata)
Prionailurus
  • Leopard cat (P. bengalensis)
  • Sunda leopard cat (P. javanensis)
  • Flat-headed cat (P. planiceps)
  • Rusty-spotted cat (P. rubiginosus)
  • Fishing cat (P. viverrinus)
Puma
  • Cougar (P. concolor)
Pantherinae
Panthera
  • Lion (P. leo)
  • Jaguar (P. onca)
  • Leopard (P. pardus)
  • Tiger (P. tigris)
  • Snow leopard (P. uncia)
Neofelis
  • Sunda clouded leopard (N. diardi)
  • Clouded leopard (N. nebulosa)
Prionodon
  • Banded linsang (P. linsang)
  • Spotted linsang (P. pardicolor)
Family Viverridae
Paradoxurinae
Arctictis
  • Binturong (A. binturong)
Arctogalidia
  • Small-toothed palm civet (A. trivirgata)
Macrogalidia
  • Sulawesi palm civet (M. musschenbroekii)
Paguma
  • Masked palm civet (P. larvata)
Paradoxurus
  • Asian palm civet (P. hermaphroditus)
  • Brown palm civet (P. jerdoni)
  • Golden palm civet (P. zeylonensis)
Hemigalinae
Chrotogale
  • Owston's palm civet (C. owstoni)
Cynogale
  • Otter civet (C. bennettii)
Diplogale
  • Hose's palm civet (D. hosei)
Hemigalus
  • Banded palm civet (H. derbyanus)
Viverrinae
Civettictis
  • African civet (C. civetta)
Viverra
  • Malabar large-spotted civet (V. civettina)
  • Large-spotted civet (V. megaspila)
  • Malayan civet (V. tangalunga)
  • Large Indian civet (V. zibetha)
Viverricula
  • Small Indian civet (V. indica)
Genettinae
Genetta
(Genets)
  • Abyssinian genet (G. abyssinica)
  • Angolan genet (G. angolensis)
  • Bourlon's genet (G. bourloni)
  • Crested servaline genet (G. cristata)
  • Common genet (G. genetta)
  • Johnston's genet (G. johnstoni)
  • Letaba genet (G. letabae)
  • Rusty-spotted genet (G. maculata)
  • Pardine genet (G. pardina)
  • Aquatic genet (G. piscivora)
  • King genet (G. poensis)
  • Servaline genet (G. servalina)
  • Hausa genet (G. thierryi)
  • Cape genet (G. tigrina)
  • Giant forest genet (G. victoriae)
  • South African small-spotted genet (G. felina)
Poiana
  • Central African oyan (P. richardsonii)
  • West African oyan (P. leightoni)
Family Eupleridae
Euplerinae
Cryptoprocta
  • Fossa (C. ferox)
Eupleres
  • Eastern falanouc (E. goudotii)
  • Western falanouc (E. major)
Fossa
  • Malagasy civet (F. fossana)
Galidiinae
Galidia
  • Ring-tailed vontsira (G. elegans)
Galidictis
  • Broad-striped Malagasy mongoose (G. fasciata)
  • Grandidier's mongoose (G. grandidieri)
Mungotictis
  • Narrow-striped mongoose (M. decemlineata)
Salanoia
  • Brown-tailed mongoose (S. concolor)
  • Durrell's vontsira (S. durrelli)
Suborder Caniformia (cont. below)
Ursidae
(Bears)
Ailuropoda
  • Giant panda (A. melanoleuca)
Helarctos
  • Sun bear (H. malayanus)
Melursus
  • Sloth bear (M. ursinus)
Tremarctos
  • Spectacled bear (T. ornatus)
Ursus
  • American black bear (U. americanus)
  • Brown bear (U. arctos)
  • Polar bear (U. maritimus)
  • Asian black bear (U. thibetanus)
Mephitidae
(Skunks)
Conepatus
(Hog-nosed
skunks)
  • Molina's hog-nosed skunk (C. chinga)
  • Humboldt's hog-nosed skunk (C. humboldtii)
  • American hog-nosed skunk (C. leuconotus)
  • Striped hog-nosed skunk (C. semistriatus)
Mephitis
  • Hooded skunk (M. macroura)
  • Striped skunk (M. mephitis)
Mydaus
  • Sunda stink badger (M. javanensis)
  • Palawan stink badger (M. marchei)
Spilogale
(Spotted skunks)
  • Southern spotted skunk (S. angustifrons)
  • Western spotted skunk (S. gracilis)
  • Eastern spotted skunk (S. putorius)
  • Pygmy spotted skunk (S. pygmaea)
Procyonidae
(Raccoons, coatis, olingos)
Bassaricyon
(Olingos)
  • Eastern lowland olingo (B. alleni)
  • Northern olingo (B. gabbii)
  • Western lowland olingo (B. medius)
  • Olinguito (B. neblina)
Bassariscus
  • Ringtail (B. astutus)
  • Cacomistle (B. sumichrasti)
Nasua
(Coatis inclusive)
  • White-nosed coati (N. narica)
  • South American coati (N. nasua)
Nasuella
(Coatis inclusive)
  • Eastern mountain coati (N. meridensis)
  • Western mountain coati (N. olivacea)
Potos
  • Kinkajou (P. flavus)
Procyon
  • Crab-eating raccoon (P. cancrivorus)
  • Raccoon (P. lotor)
  • Cozumel raccoon (P. pygmaeus)
Ailuridae
Ailurus
  • Red panda (A. fulgens)
Suborder Caniformia (cont. above)
Otariidae
(Eared seals)
(includes fur seals
and sea lions)

(Pinniped inclusive)
Arctocephalus
  • South American fur seal (A. australis)
  • Australasian fur seal (A. forsteri)
  • Galápagos fur seal (A. galapagoensis)
  • Antarctic fur seal (A. gazella)
  • Juan Fernández fur seal (A. philippii)
  • Brown fur seal (A. pusillus)
  • Guadalupe fur seal (A. townsendi)
  • Subantarctic fur seal (A. tropicalis)
Callorhinus
  • Northern fur seal (C. ursinus)
Eumetopias
  • Steller sea lion (E. jubatus)
Neophoca
  • Australian sea lion (N. cinerea)
Otaria
  • South American sea lion (O. flavescens)
Phocarctos
  • New Zealand sea lion (P. hookeri)
Zalophus
  • California sea lion (Z. californianus)
  • Galápagos sea lion (Z. wollebaeki)
Odobenidae
(Pinniped inclusive)
Odobenus
  • Walrus (O. rosmarus)
Phocidae
(Earless seals)
(Pinniped inclusive)
Cystophora
  • Hooded seal (C. cristata)
Erignathus
  • Bearded seal (E. barbatus)
Halichoerus
  • Grey seal (H. grypus)
Histriophoca
  • Ribbon seal (H. fasciata)
Hydrurga
  • Leopard seal (H. leptonyx)
Leptonychotes
  • Weddell seal (L. weddellii)
Lobodon
  • Crabeater seal (L. carcinophagus)
Mirounga
(Elephant seals)
  • Northern elephant seal (M. angustirostris)
  • Southern elephant seal (M. leonina)
Monachus
  • Mediterranean monk seal (M. monachus)
Neomonachus
  • Hawaiian monk seal (N. schauinslandi)
Ommatophoca
  • Ross seal (O. rossi)
Pagophilus
  • Harp seal (P. groenlandicus)
Phoca
  • Spotted seal (P. largha)
  • Harbor seal (P. vitulina)
Pusa
  • Caspian seal (P. caspica)
  • Ringed seal (P. hispida)
  • Baikal seal (P. sibirica)
Canidae
Large family listed below
Mustelidae
Large family listed below
Family Canidae (includes dogs)
Atelocynus
  • Short-eared dog (A. microtis)
Canis
  • Golden jackal (C. aureus)
  • Domestic dog (C. familiaris)
  • Coyote (C. latrans)
  • African wolf (C. lupaster)
  • Wolf (C. lupus)
  • Eastern wolf (C. lycaon)
  • Red wolf (C. rufus)
  • Ethiopian wolf (C. simensis)
Cerdocyon
  • Crab-eating fox (C. thous)
Chrysocyon
  • Maned wolf (C. brachyurus)
Cuon
  • Dhole (C. alpinus)
Lupulella
  • Side-striped jackal (L. adustus)
  • Black-backed jackal (L. mesomelas)
Lycalopex
  • Culpeo (L. culpaeus)
  • Darwin's fox (L. fulvipes)
  • South American gray fox (L. griseus)
  • Pampas fox (L. gymnocercus)
  • Sechuran fox (L. sechurae)
  • Hoary fox (L. vetulus)
Lycaon
  • African wild dog (L. pictus)
Nyctereutes
  • Common raccoon dog (N. procyonoides)
  • Japanese raccoon dog (N. viverrinus)
Otocyon
  • Bat-eared fox (O. megalotis)
Speothos
  • Bush dog (S. venaticus)
Urocyon
  • Gray fox (U. cinereoargenteus)
  • Island fox (U. littoralis)
Vulpes
(Foxes)
  • Bengal fox (V. bengalensis)
  • Blanford's fox (V. cana)
  • Cape fox (V. chama)
  • Corsac fox (V. corsac)
  • Tibetan fox (V. ferrilata)
  • Arctic fox (V. lagopus)
  • Kit fox (V. macrotis)
  • Pale fox (V. pallida)
  • Rüppell's fox (V. rueppelli)
  • Swift fox (V. velox)
  • Red fox (V. vulpes)
  • Fennec fox (V. zerda)
Family Mustelidae
Helictidinae
(Ferret-badgers)
Melogale
  • Vietnam ferret-badger (M. cucphuongensis)
  • Bornean ferret badger (M. everetti)
  • Chinese ferret-badger (M. moschata)
  • Javan ferret-badger (M. orientalis)
  • Burmese ferret-badger (M. personata)
  • Formosan ferret-badger (M. subaurantiaca)
Guloninae
(Martens and wolverines)
Eira
  • Tayra (E. barbara)
Gulo
  • Wolverine (G. gulo)
Martes
(Martens)
  • American marten (M. americana)
  • Pacific marten (M. caurina)
  • Yellow-throated marten (M. flavigula)
  • Beech marten (M. foina)
  • Nilgiri marten (M. gwatkinsii)
  • European pine marten (M. martes)
  • Japanese marten (M. melampus)
  • Sable (M. zibellina)
Pekania
  • Fisher (P. pennanti)
Ictonychinae
(African polecats and grisons)
Galictis
  • Lesser grison (G. cuja)
  • Greater grison (G. vittata)
Ictonyx
  • Saharan striped polecat (I. libyca)
  • Striped polecat (I. striatus)
Lyncodon
  • Patagonian weasel (L. patagonicus)
Poecilogale
  • African striped weasel (P. albinucha)
Vormela
  • Marbled polecat (V. peregusna)
Lutrinae
(Otters)
Aonyx
  • African clawless otter (A. capensis)
  • Asian small-clawed otter (A. cinereus)
  • Congo clawless otter (A. congicus)
Enhydra
  • Sea otter (E. lutris)
Hydrictis
  • Spotted-necked otter (H. maculicollis)
Lontra
  • North American river otter (L. canadensis)
  • Marine otter (L. felina)
  • Neotropical otter (L. longicaudis)
  • Southern river otter (L. provocax)
Lutra
  • Eurasian otter (L. lutra)
  • Hairy-nosed otter (L. sumatrana)
Lutrogale
  • Smooth-coated otter (L. perspicillata)
Pteronura
  • Giant otter (P. brasiliensis)
Melinae
(Eurasian badgers)
Arctonyx
  • Northern hog badger (A. albogularis)
  • Greater hog badger (A. collaris)
  • Sumatran hog badger (A. hoevenii)
Meles
  • Japanese badger (M. anakuma)
  • Caucasian badger (M. canescens)
  • Asian badger (M. leucurus)
  • European badger (M. meles)
Mellivorinae
Mellivora
  • Honey badger (M. capensis)
Mustelinae
(Weasels and minks)
Mustela
(Weasels and ferrets)
  • Sichuan weasel (M. aistoodonnivalis)
  • Mountain weasel (M. altaica)
  • Stoat/Beringian ermine (M. erminea)
  • Steppe polecat (M. eversmannii)
  • Ferret (M. furo)
  • Haida ermine (M. haidarum)
  • Japanese weasel (M. itatsi)
  • Yellow-bellied weasel (M. kathiah)
  • European mink (M. lutreola)
  • Indonesian mountain weasel (M. lutreolina)
  • Black-footed ferret (M. nigripes)
  • Least weasel (M. nivalis)
  • Malayan weasel (M. nudipes)
  • European polecat (M. putorius)
  • American ermine (M. richardsonii)
  • Siberian weasel (M. sibirica)
  • Back-striped weasel (M. strigidorsa)
Neogale
  • Amazon weasel (N. africana)
  • Colombian weasel (N. felipei)
  • Long-tailed weasel (N. frenata)
  • American mink (N. vison)
Taxidiinae
Taxidea
  • American badger (T. taxus)
  • v
  • t
  • e
Genera of red pandas, raccoons, skunks, mustelids and their extinct allies
  • Peignictis
  • Plesiogale
Ailuridae
Ailurinae
Amphictinae
Simocyoninae
Mephitidae
Procyonidae
  • Acheronictis
  • Aragonictis
  • Arikarictis
  • Circamustela
  • Erokomellivora
  • Franconictis
  • Kenyalutra
  • Kinometaxia
  • Laphyctis
  • Luogale
  • Marcetia
  • Matanomictis
  • Melidellavus
  • Mellalictis
  • Mesomephitis
  • Miomustela
  • Namibictis
  • Oaxacagale
  • Palaeomeles
  • Paragale
  • Parataxidea
  • Perunium
  • Plesictis
  • Plesiogale
  • Plesiomeles
  • Prepoecilogale
  • Presictis
  • Promellivora
  • Proputorius
  • Pyctis
  • Sabadellictis
  • Semantor
  • Sinictis
  • Sivalictis
  • Skopelogale
  • Sonitictis
  • Taxodon
  • Trochotherium
  • Xenictis
  • Zorilla
Guloninae
Helictidinae
Ictonychinae
Lutrinae
Leptarctinae
  • Craterogale
  • Leptarctus
  • Trocharion
Melinae
  • Arctomeles
  • Arctonyx
  • Meles
  • Promeles
Mellivorinae
Mustelavinae
  • Mustelavus
Mustelinae
  • Baranogale
  • Dinogale
  • Lartetictis
  • Legionarictis
  • Mustela
  • Neogale
  • Putorius
  • Tisisthenes
Oligobuninae
Taxidiinae
Taxon identifiers
Hydrictis maculicollis
Lutra maculicollis