1821

• Gray, J.E. 1821. A natural arrangement of Mollusca, according to their internal structure. London Medical Repository, 15: 229–239.

1824

• Gray, J.E. 1824. A supplement to the appendix of Captain Perry’s voyage for the discovery of a northwest passage in the years 1819–1820, containing an account of the subjects of natural history. Appendix X. Natural history, shells. CCXL–CCXLVI. BHL Reference page. 
• Gray, J.E. 1824. A revision of the family Equidae. Zool. J. Lond. 1: 241–248 pl. 9
• Gray, J.E. 1824. On the natural arrangement of the pulmonobranchous Mollusca. The Annals of Philosophy, new series, 8: 107–109.

1825

• Gray, J.E. 1825. An outline of an attempt at the disposition of the Mammalia into tribes and families with a list of the genera apparently appertaining to each tribe. Ann. Philos. (ns), 10: 337–344
• Gray, J.E. 1825. A list and description of some species of shells not taken notice of by Lamarck (continued). Annals of philosophy (2), 9: 407–415. BHL
• Gray, J.E. 1825. A synopsis of the genera of reptiles and Amphibia, with a description of some new species. Annals of philosophy 10:193—217.

• Gray, J.E. 1825: A synopsis of the genera of Cirripedes arranged in natural families, with a description of some new species. Annals of Philosophy new series 10: 97–107. BHL Reference page. 
• Gray, J.E. 1825. An attempt to divide the Echinida, or sea eggs, into natural families. Annals of Philosophy.

1827

• Gray, J.E. 1827. A Synopsis of the Genera of Saurian Reptiles in which some new Genera are indicated, and the others reviewed by actual Examination. Philosophical magazine, London, 2 (2): 54–58. BHL

1830

• Gray, J.E. 1830–1835. Illustrations of Indian Zoology (with Thomas Hardwicke) Title page BHL

1831

• Gray, J.E. 1831. The Zoological Miscellany. To Be Continued Occasionally. London: Published by Treuttel, Wurtz and Co

1835

• Gray, J.E. In Lyell, C. 1835: The Bakerian Lecture. On the Proofs of a Gradual Rising of the Land in Certain Parts of Sweden. Philosophical Transactions of the Royal Society 125: 1–38. JSTORReference page. 

1840

• Gray, J.E. 1840. Catalogue of the species of reptiles collected in Cuba by W.S. MacLeay, esq.; with some notes on their habits extracted from his MS. Ann. Mag. Nat. Hist. (1)5: 108–115.
• Gray, J.E. (16 October 1840). Shells of molluscous animals. In: Synopsis of the contents of the British Museum, ed. 42: 105–152.
• Gray, J.E. (4 November 1840). Shells of molluscous animals. In: Synopsis of the contents of the British Museum, ed. 42, 2nd printing: 106–156.

• Gray, J.E. 1840. XXII. A synopsis of the genera and species of the class Hypostoma (Asterias, Linnaeus). Annals and magazine of natural history 6(36): 175–184. DOI: 10.1080/03745484009443282 . BHL. Reference page. 

• Gray, J.E. 1840. XXXII. A synopsis of the genera and species of the class Hypostoma (Asterias, Linnaeus) (Continued from p. 184.) Annals and magazine of natural history 6(37): 275–290. DOI: 10.1080/03745484009443296 BHL Reference page. 

1841

• Gray, J.E. 1841. A catalogue of the species of reptiles and amphibia hitherto described as inhabiting Australia, with a description of some new species from Western Australia, and some remarks on their geographical distribution. Appendix E, pp. 422–449 In: Grey, G. (ed.). Journals of Two Expeditions of Discovery in Northwest and Western Australia, during the years 1837, 38, and 39. 2 volumes. T. and W. Boone: London. XIV + 412 pp. (vol. 1) + VII + 482 pp (vol 2). Reference page. 

1842

• Gray, J.E. 1842. Description of some hitherto unrecorded species of Australian reptiles and batrachians. Pp. 51–57 in Gray, J.E. (ed.) Zoological Miscellany. Treuttel, Wurtz & Co.: London. Reference page. 

1843

• Gray, J.E. 1843. Descriptions of the reptiles and Amphibia hitherto observed in New Zealand. Pp. 202–206 in Dieffenbach, E.: Travels in New Zealand; with contributions to the geography, geology, botany, and natural history of that country. Volume 2. John Murray: London. BHL Reference page. 

• Gray, J.E. 1843: List of Mammalia hitherto recorded as found in New Zealand. Pp. 181–185, 296 (addendum) in Dieffenbach, E.: Travels in New Zealand; with contributions to the geography, geology, botany, and natural history of that country. Volume 2. John Murray, London, England. BHL Reference page. 

• Gray, J.E. 1843: Appendix, p. 269. In Dieffenbach, E.: Travels in New Zealand; with contributions to the geography, geology, botany, and natural history of that country. Volume 2. John Murray, London, England. BHL Reference page. 

1847

• Gray, J.E. 1847. A list of the genera of Recent Mollusca, their synonyma and types. Proceedings of the Zoological Society of London 15: 129–219. BHL Reference page. 

• Gray, J.E. 1847. An outline of the arrangement of stony corals. Annals and Magazine of Natural History Series 1, 19(124): 120–128. DOI: 10.1080/037454809496460 BHL Reference page. 

1848

• Gray, J.E. 1848. Description of a new species of Anatifa. Proceedings of the Zoological Society of London, 16: 44. BHL Reference page. 

• Gray, J.E. 1848. On Thaliella, a new genus of cirripedes allied to Scalpellum. Proceedings of the Zoological Society of London, 16: 44. BHL Reference page. 

• Gray, J.E. 1848. List of the Specimens of British Animals in the Collection of the British Museum. Part 1. Centroniae or Radiated Animals. Trustees of the British Museum (Natural History): London. xiii + 173 pp. BHL Reference page. 

• Gray, J.E. 1848. List of the Specimens of British Sponges in the Collection of the British Museum. Part 2. Trustees of the British Museum (Natural History): London. viii + 24 pp. BHL Reference page. 

1850

• Gray, J.E. 1850. Catalogue of the Specimens of Amphibia in the Collection of the British Museum. Part II. Batrachia Gradientia, etc. Printed by Order of the Trustees. London: Spottiswoodes and Shaw.
• Gray, J.E. 1850. Figures of molluscous animals selected from various authors. Etched for the use of students by M. E. Gray. Volume 4. Longman, Brown, Green & Longmans, London. iv+219 pp.

1851

• Gray, J. E., 1851: List of the specimens of fish in the collection of the British Museum. Part I. Chondropterygii. British Museum (Natural History), London. 160 pp Reference page. 

1853

• Gray J.E. 1853. Descriptions of some undescribed species of Reptiles collected by Dr. Joseph Hooker in the Khassia Mountains, East Bengal, and Sikkim Himalaya. Annals and magazine of natural history Second Series 12: 386–392.

1855

• Gray, J.E. 1855 and 1870. Catalog of Shield Reptiles.
• F Walker, Gray J.E., 1855. List of the Specimens of Lepidopterous Insects in the Collection of the British Museum.
• Gray J.E., 1855. An arrangement of the families of Echinida, with descriptions of some new genera and species. Proceedings of the Zoological Society, London.
• Gray J.E., 1855. On some new species of freshwater tortoises from North America, Ceylon and Australia, in the collection of the British Museum. Proceedings of the Zoological Society of London.
• Gray J.E., 1855. Catalogue of the recent Echinida, or sea eggs: in the collection of the British museum. Part I.--Echinida irregularia.
• Gray J.E., 1855. Testudinata (tortoises). British Museum.
• Gray J.E. C.-A.-L. Rang et Souleyet, 1855. List of Mollusca and Shells in the collection of the British Museum, collected and described by MM. Eydoux and Souleyet, in the" Voyage autour du Monde …

1857

• Gray J.E., 1857. Guide to the Systematic Distribution of Mollusca in the British Museum. Part I. Taylor & Francis.

1858

• Gray, J.E. 1857 [1858]. Synopis of the Families and Genera of Axiferous Zoophytes or Barked Corals. Proceedings of the Zoological Society of London, 1857: 278–294. BHL Reference page. 

1860

• Gray, J.E. October 1860. "On the arrangement of the land pulmoniferous Mollusca into families". Annals and Magazine of Natural History, serie 3, 6: 267–269.

1862

• Gray, J.E. 1862. A Hand Catalogue of Postage Stamps for the use of the Collector. London: Robert Hardwicke. Free download.

1864

• Gray, J.E. 1864. Handbook of British water-weeds or algae. The Diatomaceae by W. Carruthers. pp. i–iv, 1–123. London: R. Hardwicke, Picadilly. Hathitrust Reference page. 

1866

• Gray J.E. 1866. Description of two new forms of Gorgonioid corals. Proceedings of the Zoological Society of London 1866: 24–27. BHL Reference page. 

• Gray J.E. 1866. A revision of the genera of Rhinolophidae, or horseshoe bats. Proceedings of the Zoological Society of London 1866: 81–83. BHL Reference page. 

• Gray, J.E. 1866. On Anadyomene and Microdictyon, with the description of three new allied genera, discovered by Menzies in the Gulf of Mexico. Journal of Botany, British and Foreign 4: 41–51, 65–72, Plate 44. BHL Reference page. 

1867

• Gray, J.E. 1867. Description of a new Australian tortoise (Elseya latisternum). Annals and Magazine of Natural History 3(20): 43–45. BHL Reference page. 

• Gray, J.E. 1867. Notes on the arrangement of sponges, with the descriptions of some new genera. Proceedings of the Zoological Society of London 1867(2): 492–558. BHL Reference page. 
• Gray, J.E. 1867. Lithothrix, a new genus of Corallinae. Journal of Botany, British and Foreign 5: 33, 2 figs.

1869

• Gray, J.E. 1869. Notes on the families and genera of tortoises (Testudinata), and on the characters afforded by the study of their skulls. Proceedings of the Zoological Society of London 1869: 165–225. Reference page. 

1870

• Gray, J.E. 1870. Catalogue of Lithophytes or Stony Corals in the Collection of the British Museum. British Museum, London. 1–51. BHL Reference page. 

1872

• Gray, J.E. 1872. On Codiophyllum, a new genus of unicellular green algae from Port Natal. Annals and Magazine of Natural History Ser. 4, 10: 139–141, Plate IX. BHL