Oldfield Thomas

Michael Rogers Oldfield Thomas FRS FZS (21 February 1858 – 16 June 1929) was a British zoologist.[1][2][3]

Oldfield Thomas
Portrait of Michael Rogers Oldfield Thomas - ZooKeys-255-103-g003-bottom right.jpeg
Painting by Walter Stoneman
Michael Rogers Oldfield Thomas

21 February 1858
Died16 June 1929 (aged 71)
Known forMammalogy
Scientific career
InstitutionsNatural History Museum
Author abbrev. (zoology)Thomas


Thomas worked at the Natural History Museum on mammals, describing about 2,000 new species and subspecies for the first time. He was appointed to the Museum Secretary's office in 1876, transferring to the Zoological Department in 1878. In 1891 Thomas married Mary Kane, daughter of Sir Andrew Clark, heiress to a small fortune, which gave him the finances to hire mammal collectors and present their specimens to the museum. He also did field work himself in western Europe and South America. His wife shared his interest in natural history, and accompanied him on collecting trips.[2] In 1896 when William Henry Flower took control of the department he hired Richard Lydekker to rearrange the exhibitions,[4] allowing Thomas to concentrate on these new specimens.[5][6] Officially retired from the museum in 1923, he continued his work without interruption. Although popular rumours suggested he died by shooting himself with a handgun while sitting at his museum desk,[7] he actually died at home[8] in 1929, aged 71, about a year after the death of his wife, "a severe blow from which he never recovered".[2]

Taxonomic descriptions

Higher ranks

  1. Deomyinae
  2. Desmanini
  3. Myzopodidae
  4. Ochotonidae
  5. Phalangeroidea
  6. Procaviidae


  1. Aethalops
  2. Aethomys
  3. Ammodillus
  4. Ammodorcas
  5. Anisomys
  6. Anthops
  7. Batomys
  8. Beamys
  9. Belomys
  10. Blarinella
  11. Brachiones
  12. Bunomys
  13. Caenolestes
  14. Callicebus
  15. Calomyscus
  16. Caloprymnus
  17. Cannomys
  18. Carpomys
  19. Casinycteris
  20. Chiromyscus
  21. Chiruromys
  22. Choeroniscus
  23. Chrotogale
  24. Chrotomys
  25. Cistugo
  26. Cloeotis
  27. Clyomys
  28. Colomys
  29. Crateromys
  30. Crossomys
  31. Crunomys
  32. Cynomops
  33. Cyttarops
  34. Dacnomys
  35. Damaliscus
  36. Deomys
  37. Dephomys
  38. Desmodillus
  39. Desmomys
  40. Diomys
  41. Diplogale
  42. Diplomys
  43. Diplothrix
  44. Dologale
  45. Dromiciops
  46. Dryomys
  47. Epixerus
  48. Eupetaurus
  49. Euxerus
  50. Galeopterus
  51. Gerbilliscus
  52. Glaucomys
  53. Glironia
  54. Glirulus
  55. Glyphonycteris
  56. Glyphotes
  57. Grammomys
  58. Hadromys
  59. Haeromys
  60. Harpiola
  61. Harpyionycteris
  62. Hybomys
  63. Hylochoerus
  64. Hylomyscus
  65. Hylonycteris
  66. Hylopetes
  67. Hyomys
  68. Ia
  69. Ichthyomys
  70. Iomys
  71. Laephotis
  72. Lariscus
  73. Leggadina
  74. Lemmiscus
  75. Lenomys
  76. Leporillus
  77. Leptomys
  78. Lichonycteris
  79. Lionycteris
  80. Lonchophylla
  81. Lonchothrix
  82. Mallomys
  83. Mastacomys
  84. Mastomys
  85. Melanomys
  86. Melomys
  87. Menetes
  88. Mesophylla
  89. Microdillus
  90. Microgale
  91. Microryzomys
  92. Millardia
  93. Mimetillus
  94. Muriculus
  95. Mylomys
  96. Myoprocta
  97. Myosciurus
  98. Myotomys
  99. Neacomys
  100. Nesoromys
  101. Octomys
  102. Oecomys
  103. Oenomys
  104. Oreonax
  105. Otomops
  106. Parotomys
  107. Peroryctes
  108. Petaurillus
  109. Petinomys
  110. Petromyscus
  111. Pharotis
  112. Philetor
  113. Platalina
  114. Platymops
  115. Poecilogale
  116. Praomys
  117. Proedromys
  118. Pteralopex
  119. Pteromyscus
  120. Rhabdomys
  121. Rheomys
  122. Rhynchogale
  123. Rhynchomys
  124. Sciurillus
  125. Scleronycteris
  126. Scotinomys
  127. Scotoecus
  128. Scutisorex
  129. Sminthopsis
  130. Solomys
  131. Stochomys
  132. Surdisorex
  133. Sylvisorex
  134. Taterillus
  135. Thallomys
  136. Thamnomys
  137. Vampyressa
  138. Vampyriscus
  139. Vampyrodes
  140. Xeromys
  141. Zyzomys


  1. Admiralty flying fox
  2. Asian particolored bat
  3. Azores noctule
  4. Bare-tailed armored tree-rat
  5. Beatrix's bat
  6. Bibundi bat
  7. Birdlike noctule
  8. Bonthain rat
  9. Brooks's dyak fruit bat
  10. Dark-brown serotine
  11. Dayak fruit bat
  12. Desert woodrat
  13. Egyptian pipistrelle
  14. Ethiopian hare
  15. Euryoryzomys macconnelli
  16. Forrest's pika
  17. Buller's pocket gopher
  18. Great evening bat
  19. Greater bamboo bat
  20. Greater Papuan pipistrelle
  21. Greater sheath-tailed bat
  22. Guadalcanal monkey-faced bat
  23. Hairy-footed flying squirrel
  24. Harpy fruit bat
  25. Hinde's lesser house bat
  26. Holochilus chacarius
  27. Hylomyscus aeta
  28. Indonesian mountain weasel
  29. Intermediate long-fingered bat
  30. Isabelle's ghost bat
  31. Junín red squirrel
  32. Korean hare
  33. Lagos serotine
  34. Large Luzon forest rat
  35. Lesser long-fingered bat
  36. Light-winged lesser house bat
  37. Long-tailed planigale
  38. Bengal slow loris
  39. Javan slow loris
  40. Luzon hairy-tailed rat
  41. Maclear's rat
  42. Goeldi's marmoset
  43. Melanomys robustulus
  44. Mindomys hammondi
  45. Miniopterus manavi
  46. Monito del monte
  47. Mount Popa pipistrelle
  48. Bare-tailed woolly mouse opossum
  49. White-bellied woolly mouse opossum
  50. Woolly mouse opossum
  51. Mouse-like hamster
  52. Neacomys guianae
  53. Neacomys spinosus
  54. Neacomys tenuipes
  55. Nectomys magdalenae
  56. Nephelomys auriventer
  57. Nephelomys caracolus
  58. Nephelomys childi
  59. Nephelomys levipes
  60. Nephelomys meridensis
  61. Nesoryzomys indefessus
  62. New Guinea long-eared bat
  63. Oecomys flavicans
  64. Oecomys mamorae
  65. Oecomys paricola
  66. Oecomys phaeotis
  67. Oecomys rex
  68. Oecomys roberti
  69. Oecomys superans
  70. Oligoryzomys arenalis
  71. Oligoryzomys victus
  72. Opossum rat
  73. Oreoryzomys balneator
  74. Oryzomys peninsulae
  75. Parahydromys asper
  76. Paruromys dominator
  77. Persian vole
  78. Pratt's roundleaf bat
  79. Proechimys roberti
  80. Pygmy fruit bat
  81. Sculptor squirrel
  82. Scutisorex somereni
  83. Southern common cuscus
  84. Sphaerias blanfordi
  85. Spinifex hopping mouse
  86. Strange big-eared brown bat
  87. Sturdee's pipistrelle
  88. Sulawesi giant rat
  89. Surat serotine
  90. Szechwan myotis
  91. Taiwan field mouse
  92. Thomas's yellow bat
  93. Tiny pipistrelle
  94. Velvety fruit-eating bat
  95. Western broad-nosed bat
  96. White-bellied lesser house bat
  97. White-tipped tufted-tailed rat
  98. Woolly flying squirrel
  99. Woolly-headed spiny tree-rat
  100. Zygodontomys brunneus
  101. Zyzomys argurus


  1. ^ "Thomas, Oldfield". Who's Who. 59. A & C Black. 1907. p. 1737.
  2. ^ a b c Haddon, Alfred Cort (1929). "MR. M. R. Oldfield Thomas, F.R.S". Nature. 124 (3116): 101–102. doi:10.1038/124101a0. ISSN 0028-0836.
  3. ^ Haddon, Albert Cort (9 May 1901). "M. R. Oldfield Thomas". Nature. 64 (1645): 37–38. doi:10.1038/064038a0.
  4. ^ The Natural History Museum at South Kensington, William T. Stearn ISBN 0-434-73600-7
  5. ^ Oldfield Thomas, Catalogue of the Marsupialia and Monotremata in the Collection of the British Museum (Natural History) Dept of Zoology (1888), Taylor and Francis, London Catalogue of the Marsupialia... full text retrieved 21 March 2007
  6. ^ Oldfield Thomas F. R. S., The History of the Collections Contained in the Natural History Departments of the British Museum Vol. II, Separate Historical accounts of the Historical Collections included in the Department of Zoology, I. Mammals,(1906) William Clowes and Sons Ltd. London. retrieved 21 March 2007 The History of the Collections..." full text
  7. ^ Flannery, T. (6 November 2012). Among the Islands: Adventures in the Pacific. Grove/Atlantic, Incorporated. ISBN 978-0-8021-9404-6. OCLC 793838823. Retrieved 9 June 2013.
  8. ^ Portch, Lorraine (18 November 2015). "Michael Rogers Oldfield Thomas – a resolved ending to a suicide mystery". London: Blogs from the Natural History Museum.

External links


Aethomys is a genus of rodent from Africa. They are commonly referred to as rock rats, bush rats or rock mice.


Batomys is a genus of rodent endemic to the Philippines. It has six described species.

Cheesman's gerbil

Cheesman's gerbil (Gerbilus cheesmani) is a small rodent in the subfamily Gerbillinae of the family Muridae. It is distributed mainly in Arabian Peninsula to southwestern Iran. It has orange-brown fur, white underparts, large eyes and a very long tail.

Great evening bat

The great evening bat (Ia io) is the largest bat in the vesper bat family (Vespertilionidae) and the only living species in the genus Ia. It is common to Eastern and Southeastern Asia (China, India, Laos, Nepal, Thailand and Vietnam), mainly living in areas with limestone caves at altitudes of 400–1,700 metres (0.25–1.06 mi). Their roost sites have been found both near the cave entrances and up to 1.5 kilometres (0.93 mi) within the cave systems.The great evening bat reaches a length of 90 to 105 millimetres (3.5–4.1 in). It is colored brown on the top and grayish on the bottom. Average wingspan is .51 m (20 in) and it typically weighs 58 g (2.0 oz).Not much is known about its habits and behavior. The bat usually lives in small groups. Its food consists of insects, as with most vesper bats. The Asian great evening bat also sometimes feeds on small birds [2]. The bat leaves its sleeping place already in the late afternoon for the search of food. During the winter months it may migrate to warmer regions.

The IUCN lists its conservation status as Least Concern. One of the threats to its survival in South Asia is human influence by habitat destruction; many caves have been turned into attractions. They have also been disturbed by farmers collecting their excrement. Also the excessive use of insecticides poses a threat to the great evening bats.At four letters, Ia io is tied with Yi qi for the shortest existing (and shortest possible) scientific name of any animal under the International Code of Zoological Nomenclature, and is one of very few scientific names composed solely of vowels [3].

Hinde's lesser house bat

Hinde's lesser house bat (Scotoecus hindei) is a species of vesper bat. It is found in Cameroon, Republic of the Congo, Kenya, Malawi, Mozambique, Nigeria, Somalia, South Sudan, Tanzania, and Zambia. Its natural habitat is dry savanna. Oldfield Thomas named it in honor of Sidney Langford Hinde, a British officer and recreational naturalist.


Melanomys is a genus of rodent in the tribe Oryzomyini of family Cricetidae, which is distributed in northern South America and adjacent Central America. It contains three species, two of which—Melanomys robustulus and Melanomys zunigae—have limited distributions. The third, Melanomys caliginosus, is more widely distributed, but may be a species complex.


Microryzomys is a genus of rodent in the tribe Oryzomyini of family Cricetidae. It is closely related to Oreoryzomys, Oligoryzomys, and Neacomys. It contains two species, both restricted to the Andes: M. altissimus and M. minutus.


The genus Neacomys, also known as bristly mice because of their spiny fur, includes several species of rodents in the tribe Oryzomyini of family Cricetidae. It is most closely related to Oligoryzomys, Oreoryzomys, and Microryzomys. Neacomys species are mainly found in the Amazon basin, but N. pictus occurs in Panama and N. tenuipes in montane Colombia. In Amazonia, there is a single large species, N. spinosus, and a number of smaller ones, including N. dubosti, N. guianae, N. paracou, N. minutus, N. musseri, N. rosalindae, N. macedoruizi, and various others that remain undescribed.

Neacomys guianae

Neacomys guianae, also known as the Guianan neacomys or Guiana bristly mouse, is a nocturnal rodent species from South America. It is found in lowland tropical rainforests in northeastern Brazil, French Guiana, Guyana, Suriname and Venezuela. Its diet consists of insects, seeds and fruit.

Neacomys spinosus

Neacomys spinosus, also known as the common neacomys, common bristly mouse, or bristly mouse, is a nocturnal rodent species from South America in the genus Neacomys. It is found in Bolivia, Brazil, Colombia, Ecuador and Peru, where it often lives in transition areas between lowland forest and open regions. Its diet consists of insects, seeds and fruit.

Nectomys magdalenae

Nectomys magdalenae, also known as the Magdalena nectomys, is a nocturnal, semiaquatic species of rodent in the genus Nectomys of family Cricetidae. It is found in northwestern Colombia at altitudes from sea level to 2000 m,including near the Magdalena River (from which it takes its name).


Oecomys is a genus of rodent within the tribe Oryzomyini of family Cricetidae. It contains about 17 species, which live in trees and are distributed across forested parts of South America, extending into Panama and Trinidad.

Oecomys flavicans

Oecomys flavicans, also known as the tawny oecomys or yellow arboreal rice rat, is a species of rodent in the genus Oecomys of family Cricetidae. It is found in the mountains of northwestern Venezuela and nearby Colombia.

Oecomys rex

Oecomys rex, also known as the regal oecomys or king arboreal rice rat, is a species of rodent in the genus Oecomys of family Cricetidae. It is found in Guyana, Suriname, French Guiana, and nearby parts of Venezuela and Brazil.

Oecomys roberti

Oecomys roberti, also known as Robert's oecomys or Robert's arboreal rice rat, is a rodent species from South America in the genus Oecomys. It has a broad distribution in the Amazon biome, being found in Bolivia, Brazil, French Guiana, Guyana, Peru, Suriname and Venezuela.


Scotoecus is a genus of bats in the family Vespertilionidae.

Sturdee's pipistrelle

Sturdee's pipistrelle (Pipistrellus sturdeei) is a bat that was thought to have lived in Japan before officially becoming extinct in 2000. In 2006 the IUCN changed its official status to "Data Deficient", as new data throws doubt on the taxonomic status of the species.


Vampyriscus is a genus of bats in the family Phyllostomidae, the leaf-nosed bats.

There are three species previously included in the genus Vampyressa. The two genera are differentiated by the morphology of their bones and teeth and the pattern of their pelage. Phylogenetic analyses support the separation of the genera. Older sources recognize Vampyriscus as a subgenus of Vampyressa.Species:

Vampyriscus bidens – bidentate yellow-eared bat

Vampyriscus brocki – Brock's yellow-eared bat

Vampyriscus nymphaea – striped yellow-eared bat


Zyzomys is a genus of rodents with unusually thick, long tails. Five species of the genus are known in Australia, where they are called rock rats or thick-tailed rats. The genus was classified by Michael Rogers Oldfield Thomas in 1909.

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