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| Kingdom Animalia | 
|  | Acomys mullah Thomas, 1904 – valid – Mullah Spiny Mouse | 
|  | Ammodillus Thomas, 1904 – valid | 
|  | Anisomys Thomas, 1904 – valid | 
|  | Anisomys imitator Thomas, 1904 – valid – Uneven-toothed Rat | 
|  | Anomalurus fraseri nigrescens Thomas, 1904 – invalid | 
|  | Balantiopteryx io Thomas, 1904 – valid – Least Sac-winged Bat, Thomas's Sac-winged Bat | 
|  | Callithrix penicillata jordani Thomas, 1904 – invalid | 
|  | Cricetomys ansorgei Thomas, 1904 – valid – Southern Giant Pouched Rat | 
|  | Crocidura fumosa Thomas, 1904 – valid – Smoky White-toothed Shrew | 
|  | Crocidura hildegardeae Thomas, 1904 – valid – Hildegarde's Shrew, Hildegarde's White-toothed Shrew | 
|  | Crocidura jacksoni Thomas, 1904 – valid – Jackson's Shrew, Jackson's White-toothed Shrew | 
|  | Crocidura maurisca Thomas, 1904 – valid – Gracile Naked-tailed Shrew, Dark Shrew, Gracile White-toothed Shrew | 
|  | Dipodillus mackilligini Thomas, 1904 – valid – Mackilligin's Dipodil | 
|  | Felis wiedii vigens Thomas, 1904 – invalid | 
|  | Funisciurus pyrropus pembertoni Thomas, 1904 – valid | 
|  | Galago poensis Thomas, 1904 – invalid | 
|  | Gerbillus dunni Thomas, 1904 – valid – Somalia Gerbil, Dunn's Gerbil | 
|  | Helogale hirtula Thomas, 1904 – valid – desert dwarf mongoose, Ethiopian Dwarf Mongoose | 
|  | Helogale hirtula hirtula Thomas, 1904 – invalid | 
|  | Herpestes albicaudus ibeanus Thomas, 1904 – invalid | 
|  | Herpestes albicaudus loandae Thomas, 1904 – invalid | 
|  | Herpestes ochraceus fulvidior Thomas, 1904 – invalid | 
|  | Herpestes ochraceus perfulvidus Thomas, 1904 – invalid | 
|  | Hylochoerus Thomas, 1904 – valid | 
|  | Hylochoerus meinertzhageni Thomas, 1904 – valid – Giant Forest Hog, giant forest hog | 
|  | Hylochoerus meinertzhageni meinertzhageni Thomas, 1904 – valid | 
|  | Hyomys Thomas, 1904 – valid – New Guinean Giant Rats | 
|  | Kerivoula bicolor Thomas, 1904 – valid | 
|  | Kerivoula whiteheadi bicolor Thomas, 1904 – invalid | 
|  | Lepus microtis angolensis Thomas, 1904 – invalid | 
|  | Lycaon pictus somalicus Thomas, 1904 – invalid | 
|  | Marmosa constantiae Thomas, 1904 – valid – White-bellied Woolly Mouse Opossum, Bay-colored Mouse Opossum, Pale-bellied Woolly Mouse Opossum | 
|  | Marmosa germana Thomas, 1904 – valid – North-western Woolly Mouse Opossum | 
|  | Marmosa regina germana Thomas, 1904 – invalid | 
|  | Midas apiculatus Thomas, 1904 – invalid | 
|  | Mimetillus Thomas, 1904 – valid | 
|  | Mosia nigrescens solomonis Thomas, 1904 – valid | 
|  | Myotis bocagii cupreolus Thomas, 1904 – valid | 
|  | Myotis carissima Thomas, 1904 – invalid | 
|  | Myotis lucifugus carissima Thomas, 1904 – invalid | 
|  | Myotis lucifugus carissimus Thomas, 1904 – valid | 
|  | Myzopodidae Thomas, 1904 – valid – Madagascar sucker-footed bats | 
|  | Nyctimene major lullulae Thomas, 1904 – valid | 
|  | Nyctimene robinsoni Thomas, 1904 – valid – Queensland Tube-nosed Fruit Bat | 
|  | Oenomys Thomas, 1904 – valid – Rufous-nosed Rats | 
|  | Oryzomys oniscus Thomas, 1904 – invalid – Sowbug Rice Rat | 
|  | Panthera pardus nanopardus Thomas, 1904 – invalid | 
|  | Perameles ornata Thomas, 1904 – invalid | 
|  | Petrogale rothschildi Thomas, 1904 – valid – Rothschild's Rock-wallaby, Rothschild's Rock Wallaby | 
|  | Phascogale bella Thomas, 1904 – invalid | 
|  | Phascogale pirata Thomas, 1904 – valid – Northern Brush-tailed Phascogale | 
|  | Pipistrellus ariel Thomas, 1904 – invalid – Desert Pipistrelle | 
|  | Pipistrellus ceylonicus raptor Thomas, 1904 – valid | 
|  | Pipistrellus crassulus Thomas, 1904 – invalid – Broad-headed Pipistrelle | 
|  | Pipistrellus nanulus Thomas, 1904 – valid – Tiny Pipistrelle, Dwarf Pipistrelle Bat | 
|  | Pipistrellus raptor Thomas, 1904 – invalid | 
|  | Pogonomys dryas Thomas, 1904 – invalid | 
|  | Proechimys oris Thomas, 1904 – invalid | 
|  | Pteropus admiralitatum solomonis Thomas, 1904 – invalid | 
|  | Pteropus solomonis Thomas, 1904 – invalid | 
|  | Rhinolophus denti Thomas, 1904 – valid – Dent's Horseshoe Bat | 
|  | Rhinolophus denti denti Thomas, 1904 – valid | 
|  | Saimiri oerstedii citrinellus Thomas, 1904 – valid – Grey-crowned Central American Squirrel Monkey | 
|  | Sciurus flammifer Thomas, 1904 – valid – Fiery Squirrel | 
|  | Scotonycteris bedfordi Thomas, 1904 – invalid | 
|  | Scotonycteris zenkeri bedfordi Thomas, 1904 – valid | 
|  | Scotophilus colias Thomas, 1904 – valid – Eritrean House Bat, Eritrean Yellow Bat | 
|  | Scotophilus dinganii colias Thomas, 1904 – invalid | 
|  | Scotophilus nigrita colias Thomas, 1904 – invalid | 
|  | Scotophilus nigrita nux Thomas, 1904 – invalid | 
|  | Scotophilus nux Thomas, 1904 – valid – Nut-colored Yellow Bat, Nut-colored House Bat, Dark House Bat, Nux Yellow House Bat | 
|  | Sylvilagus andinus meridensis Thomas, 1904 – valid | 
|  | Sylvilagus brasiliensis meridensis Thomas, 1904 – invalid | 
|  | Sylvilagus meridensis Thomas, 1904 – invalid | 
|  | Sylvisorex Thomas, 1904 – valid | 
|  | Thrichomys apereoides laurenteus Thomas, 1904 – invalid | 
|  | Thrichomys laurentius Thomas, 1904 – valid – Sao Lourenço Punare | 
|  | Uromys porculus Thomas, 1904 – valid – Guadalcanal Uromys | 
|  | Xerus rutilus intensus Thomas, 1904 – valid | 
        
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