Bata-shimo

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Bata-shimo

Uainishaji wa kisayansi

Himaya:	Animalia (Wanyama)
Faila:	Chordata (Wanyama wenye ugwe wa neva mgongoni)
Ngeli:	Aves (Ndege)
Oda:	Anseriformes (Ndege kama bata)
Familia:	Anatidae (Ndege walio na mnasaba na bata)
Jenasi:	Alopochen Stejneger, 1885 Centrornis† Chloephaga Eyton, 1838 Cyanochen Bonaparte, 1856 Hymenolaimus Gray, 1843 Malacorhynchus Swainson, 1831 Merganetta Gould, 1842 Neochen Oberholser, 1918 Pachyanas† Sarkidiornis Eyton, 1838 Tachyeres Owen, 1875 Tadorna Boie, 1822

Mabata-shimo ni ndege wa maji wa familia ndogo ya Tadorninae katika familia ya Anatidae. Mabata hawa ni katikati ya mabata wachovya na mabata bukini kwa ukubwa na kwa umbo. Wanaitwa mabata-shimo kwa sababu spishi nyingi hutaga mayai ndani ya shimo la mti au pango la sungura, mhanga n.k. Hula wanyamakombe, kaa, wadudu, nyungunyungu au manyasi, mimea ingine na mbegu. Wakiruka angani wanafanana zaidi na mabata bukini kuliko na mabata wachovya.

Yaliyomo

Alopochen aegyptiaca, Bata Bukini wa Misri (Egyptian Goose)
Alopochen kervazoi, Bata Bukini wa Réunion (Réunion Shelduck or Kervazo's Egyptian Goose) – imekwisha miaka ya 1690
Alopochen mauritianus, Bata Bukini wa Morisi (Mauritian Shelduck) – imekwisha miaka ya 1690
Cyanochen cyanopterus, Bata Bukini Mabawa-buluu (Blue-winged Goose)
Sarkidiornis melanotos, Bata nyundo (Knob-billed Duck)
Tadorna cana, Bata Kichwa-kijivu) (South African or (Cape Shelduck)
Tadorna ferruginea, Bata Kahawiachekundu) (Ruddy Shelduck)
Tadorna tadorna, Bata Mkufu-mwekundu) (Common Shelduck)

Alopochen sirabensis (Malagasy Shelduck, Madagaska) - labda spishi ndogo ya A. mauritianus
Centrornis majori (Malagasy sheldgoose, Madagaska)
Pachyanas chathamica (Chatham Island Duck, Visiwa vya Chatham)
Tadorna cf. variegata (Chatham Islands Shelduck, Visiwa vya Chatham)