Walter's duiker

Species of deer

Walter's duiker
Conservation status

Data Deficient  (IUCN 3.1)[1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Artiodactyla
Family: Bovidae
Genus: Philantomba
Species:
P. walteri
Binomial name
Philantomba walteri
Colyn, Hulselmans, Sonet, Oudé, de Winter, Natta, Nagy & Verheyen, 2010[2]

Walter's duiker (Philantomba walteri) is a species of duiker found in Togo, Benin and Nigeria. It was described in 2010.[3] Its name commemorates Professor Walter Verheyen, who was the first to obtain a specimen of this species of duiker from Togo in 1968.[4]

Description

It measures under 40 cm (16 in) tall at the shoulder, and weighs between 4 and 6 kg (8.8 and 13.2 lb). It was described in 2010 following comparison of specimens in museum collections with those from bushmeat markets.[3] It is a small antelope and is characterised by a slightly raised back, short legs, a small head and short, rounded ears. It has a long tail, pedal glands and a distinctive stripe above the eye.[5] It is intermediate in size between the larger Maxwell's duiker (Philantomba maxwellii) and the smaller blue duiker (Philantomba monticola), but is clearly different in morphology, cranial structure and DNA analysis.[1]

Distribution and habitat

Walter's duiker was first recognised as a new species in 2010 when specimens of this duiker were found on sale at a bushmeat market. The duikers have not been observed by researchers in the wild (until Spring of 2021, via video cameras), but are believed to come from the Dahomey Gap, an area of savannah which is a portion of the Guinean forest-savanna mosaic with a relatively dry climate, that extends all the way to the coast in Benin, Togo and Ghana, separating the rainforest zones on either side.[5]

Status

This species is known from only forty-one specimens found in the last few decades and it has not been viewed in the wild. The International Union for Conservation of Nature considers the species too poorly known for it to be able to evaluate this animal's conservation status, so they have assessed it as being of "data deficient".[1]

References

  1. ^ a b c IUCN SSC Antelope Specialist Group (2016). "Philantomba walteri". IUCN Red List of Threatened Species. 2016: e.T88418111A88418148. doi:10.2305/IUCN.UK.2016-1.RLTS.T88418111A88418148.en. Retrieved 19 November 2021.
  2. ^ Colyn, M.; Hulselmans, J.; Sonet, G.; Oude, P.; de Winter, J.; Natta, A.; Nagy, Z. T.; Verheyen, E. K. (2010). "Discovery of a new duiker species (Bovidae: Cephalophinae) from the Dahomey Gap, West Africa" (PDF). Zootaxa. 2637: 1–30. doi:10.11646/zootaxa.2637.1.1.
  3. ^ a b New species of antelope discovered in West Africa. WildlifeExtra.com. October 2011.
  4. ^ Duiker. Top 10 New Species of 2011. SUNY College of Environmental Science and Forestry.
  5. ^ a b Jonathan Kingdon (2015). The Kingdon Field Guide to African Mammals: Second Edition. Bloomsbury Publishing. pp. 164–165. ISBN 978-1-4729-2531-2.
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Extant Artiodactyla species
Suborder Ruminantia
Antilocapridae
Antilocapra
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Giraffidae
Okapia
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Giraffa
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Moschidae
Moschus
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  • Black musk deer (M. fuscus)
  • Himalayan musk deer (M. leucogaster)
  • Siberian musk deer (M. moschiferus)
Tragulidae
Hyemoschus
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Moschiola
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Tragulus
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Cervidae
Large family listed below
Bovidae
Large family listed below
Family Cervidae
Cervinae
Muntiacus
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  • Leaf muntjac (M. putaoensis)
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Elaphodus
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Dama
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Axis
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  • Bawean deer (A. kuhlii)
  • Hog deer (A. porcinus)
Rucervus
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  • Eld's deer (R. eldii)
Elaphurus
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Rusa
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  • Sambar (R. unicolor)
Cervus
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Capreolinae
Alces
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Hydropotes
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Capreolus
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Rangifer
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Hippocamelus
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Mazama
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Ozotoceros
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Blastocerus
  • Marsh deer (B. dichotomus)
Pudu
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Pudella?
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Odocoileus
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  • White-tailed deer (O. virginianus)
Family Bovidae
Hippotraginae
Hippotragus
  • Roan antelope (H. equinus)
  • Sable antelope (H. niger)
Oryx
  • East African oryx (O. beisa)
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  • Arabian oryx (O. leucoryx)
Addax
  • Addax (A. nasomaculatus)
Reduncinae
Kobus
  • Waterbuck (K. ellipsiprymnus)
  • Kob (K. kob)
  • Lechwe (K. leche)
  • Nile lechwe (K. megaceros)
  • Puku (K. vardonii)
Redunca
  • Southern reedbuck (R. arundinum)
  • Mountain reedbuck (R. fulvorufula)
  • Bohor reedbuck (R. redunca)
Aepycerotinae
Aepyceros
  • Impala (A. melampus)
Peleinae
Pelea
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Alcelaphinae
Beatragus
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Damaliscus
  • Common tsessebe (D. lunatus)
  • Bontebok (D. pygargus)
Alcelaphus
  • Hartebeest (A. buselaphus)
Connochaetes
  • Black wildebeest (C. gnou)
  • Blue wildebeest (C. taurinus)
Pantholopinae
Pantholops
  • Tibetan antelope (P. hodgsonii)
Caprinae
Large subfamily listed below
Bovinae
Large subfamily listed below
Antilopinae
Large subfamily listed below
Family Bovidae (subfamily Caprinae)
Ammotragus
  • Barbary sheep (A. lervia)
Arabitragus
  • Arabian tahr (A. jayakari)
Budorcas
  • Takin (B. taxicolor)
Capra
  • Wild goat (C. aegagrus)
  • West Caucasian tur (C. caucasia)
  • East Caucasian tur (C. cylindricornis)
  • Markhor (C. falconeri)
  • Domestic goat (C. hircus)
  • Alpine ibex (C. ibex)
  • Nubian ibex (C. nubiana)
  • Iberian ibex (C. pyrenaica)
  • Siberian ibex (C. sibirica)
  • Walia ibex (C. walie)
Capricornis
  • Japanese serow (C. crispus)
  • Red serow (C. rubidus)
  • Mainland serow (C. sumatraensis)
  • Taiwan serow (C. swinhoei)
Hemitragus
  • Himalayan tahr (H. jemlahicus)
Naemorhedus
  • Red goral (N. baileyi)
  • Long-tailed goral (N. caudatus)
  • Himalayan goral (N. goral)
  • Chinese goral (N. griseus)
Oreamnos
  • Mountain goat (O. americanus)
Ovibos
  • Muskox (O. moschatus)
Nilgiritragus
  • Nilgiri tahr (N. hylocrius)
Ovis
  • Argali (O. ammon)
  • Domestic sheep (O. aries)
  • Bighorn sheep (O. canadensis)
  • Dall sheep (O. dalli)
  • Mouflon (O. gmelini)
  • Snow sheep (O. nivicola)
  • Urial (O. vignei)
Pseudois
  • Bharal (P. nayaur)
Rupicapra
  • Pyrenean chamois (R. pyrenaica)
  • Chamois (R. rupicapra)
Family Bovidae (subfamily Bovinae)
Boselaphini
Tetracerus
  • Four-horned antelope (T. quadricornis)
Boselaphus
  • Nilgai (B. tragocamelus)
Bovini
Bubalus
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  • Mountain anoa (B. quarlesi)
Bos
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  • Gayal (B. frontalis)
  • Gaur (B. gaurus)
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  • Cattle (B. taurus)
Pseudoryx
  • Saola (P. nghetinhensis)
Syncerus
  • African buffalo (S. caffer)
Tragelaphini
Tragelaphus
(including kudus)
  • Nyala (T. angasii)
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  • Sitatunga (T. spekeii)
  • Greater kudu (T. strepsiceros)
  • Cape bushbuck (T. sylvaticus)
Taurotragus
  • Giant eland (T. derbianus)
  • Common eland (T. oryx)
Family Bovidae (subfamily Antilopinae)
Antilopini
Ammodorcas
  • Dibatag (A. clarkei)
Antidorcas
  • Springbok (A. marsupialis)
Antilope
  • Blackbuck (A. cervicapra)
Eudorcas
  • Mongalla gazelle (E. albonotata)
  • Red-fronted gazelle (E. rufifrons)
  • Thomson's gazelle (E. thomsonii)
  • Heuglin's gazelle (E. tilonura)
Gazella
  • Chinkara (G. bennettii)
  • Cuvier's gazelle (G. cuvieri)
  • Dorcas gazelle (G. dorcas)
  • Erlanger's gazelle (G. erlangeri)
  • Mountain gazelle (G. gazella)
  • Rhim gazelle (G. leptoceros)
  • Speke's gazelle (G. spekei)
  • Goitered gazelle (G. subgutturosa)
Litocranius
  • Gerenuk (L. walleri)
Nanger
  • Dama gazelle (N. dama)
  • Grant's gazelle (N. granti)
  • Bright's gazelle (N. notatus)
  • Peter's gazelle (N. petersii)
  • Soemmerring's gazelle (N. soemmerringii)
Procapra
  • Mongolian gazelle (P. gutturosa)
  • Goa (P. picticaudata)
  • Przewalski's gazelle (P. przewalskii)
Saigini
Pantholops
  • Tibetan antelope (P. hodgsonii)
Saiga
  • Saiga antelope (S. tatarica)
Neotragini
Dorcatragus
  • Beira (D. megalotis)
Madoqua
  • Günther's dik-dik (M. guentheri)
  • Kirk's dik-dik (M. kirkii)
  • Silver dik-dik (M. piacentinii)
  • Salt's dik-dik (M. saltiana)
Neotragus
  • Bates' pygmy antelope (N. batesi)
  • Suni (N. moschatus)
  • Royal antelope (N. pygmaeus)
Oreotragus
  • Klipspringer (O. oreotragus)
Ourebia
  • Oribi (O. ourebi)
Raphicerus
  • Steenbok (R. campestris)
  • Cape grysbok (R. melanotis)
  • Sharpe's grysbok (R. sharpei)
Cephalophini
Cephalophus
  • Aders's duiker (C. adersi)
  • Brooke's duiker (C. brookei)
  • Peters' duiker (C. callipygus)
  • White-legged duiker (C. crusalbum)
  • Bay duiker (C. dorsalis)
  • Harvey's duiker (C. harveyi)
  • Jentink's duiker (C. jentinki)
  • White-bellied duiker (C. leucogaster)
  • Red forest duiker (C. natalensis)
  • Black duiker (C. niger)
  • Black-fronted duiker (C. nigrifrons)
  • Ogilby's duiker (C. ogilbyi)
  • Ruwenzori duiker (C. rubidis)
  • Red-flanked duiker (C. rufilatus)
  • Yellow-backed duiker (C. silvicultor)
  • Abbott's duiker (C. spadix)
  • Weyns's duiker (C. weynsi)
  • Zebra duiker (C. zebra)
Philantomba
  • Blue duiker (P. monticola)
  • Maxwell's duiker (P. maxwellii)
  • Walter's duiker (P. walteri)
Sylvicapra
  • Common duiker (S. grimmia)
Suborder Suina
Suidae
Babyrousa
  • Buru babirusa (B. babyrussa)
  • North Sulawesi babirusa (B. celebensis)
  • Togian babirusa (B. togeanensis)
Hylochoerus
  • Giant forest hog (H. meinertzhageni)
Phacochoerus
  • Desert warthog (P. aethiopicus)
  • Common warthog (P. africanus)
Porcula
  • Pygmy hog (P. salvania)
Potamochoerus
  • Bushpig (P. larvatus)
  • Red river hog (P. porcus)
Sus
  • Palawan bearded pig (S. ahoenobarbus)
  • Bornean bearded pig (S. barbatus)
  • Visayan warty pig (S. cebifrons)
  • Celebes warty pig (S. celebensis)
  • Domestic pig (S. domesticus)
  • Flores warty pig (S. heureni)
  • Oliver's warty pig (S. oliveri)
  • Philippine warty pig (S. philippensis)
  • Wild boar (S. scrofa)
  • Timor warty pig (S. timoriensis)
  • Javan warty pig (S. verrucosus)
Tayassuidae
Tayassu
  • White-lipped peccary (T. pecari)
Catagonus
  • Chacoan peccary (C. wagneri)
Dicotyles
  • Collared peccary (D. tajacu)
Suborder Tylopoda
Camelidae
Lama
  • Llama (L. glama)
  • Guanaco (L. guanicoe)
  • Alpaca (L. pacos)
  • Vicuña (L. vicugna)
Camelus
  • Domestic Bactrian camel (C. bactrianus)
  • Dromedary/Arabian camel (C. dromedarius)
  • Wild Bactrian camel (C. ferus)
Suborder Whippomorpha
Hippopotamidae
Hippopotamus
  • Hippopotamus (H. amphibius)
Choeropsis
  • Pygmy hippopotamus (C. liberiensis)
Cetacea
  • see Cetacea
Taxon identifiers
Philantomba walteri