11,349 Free Images of Scientific Reports

jacques burkhardt scientific drawings harvard university jacques burkhardt watercolor on paper 1865 in art watercolor paintings turtles in art pencil on paper apistogramma 1856 in art

Symphysodon aequifasciata (Teffe, Brazil, 28 September 1865)), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Cichlid larvae (Teffe, Brazil, 14 September 1865; 7 parts), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Nannostomus sp. (Lake January, Brazil, 22 November 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Turtle (bottom view) (Cambridge, Mass., June 1852), Jacques Burkhardt, 1852-06-??

jacques burkhardt scientific drawings turtles in art

Trionyx Natchez (bottom view) (1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings 1856 in art

Turtle on grass (side view), Jacques Burkhardt

jacques burkhardt scientific drawings turtles in art

Shark? (top view) (China, December 1853), Jacques Burkhardt, 1853-12-??

jacques burkhardt scientific drawings sharks in art

Cichlid larvae (Teffe, Brazil, 14 September 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Rhithropanopeus harrisii (Cambridge, Mass., May 1852; 5 crabs), Jacques Burkhardt, 1852-05-??

jacques burkhardt scientific drawings 1852 in art

Turtle (top view) (Cuba), Jacques Burkhardt

jacques burkhardt scientific drawings turtles in art

Trionyx Natchez (top view) (1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings 1856 in art

Mollusk and anatomical cross section (Nahant, Mass., 13 September 1854), Jacques Burkhardt

jacques burkhardt scientific drawings mollusca in art

Glyptoperichthys gibbiceps (Teffe, Brazil, 11 and 15 October 1865; 2 fish), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Bunocephalus coracoideus (Tajapuru, Brazil, 22 August 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Four mollusk drawings, Jacques Burkhardt

jacques burkhardt scientific drawings illustrations of snails

Sternopygus macrurus (Lago Maximo, Brazil, 1866), Jacques Burkhardt, 1866-??-??

jacques burkhardt scientific drawings 1866 in art

Malaclemys concentrie head (1855), Jacques Burkhardt, 1855-??-??

jacques burkhardt scientific drawings 1855 in art

Saurus truncatus (Rio de Janeiro, Brazil, 15 July 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Hypoptopoma gulare and Pseudacanthicus spinosus (Teffe, Brazil, 11 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Turtle (top view) (Natchez, Mississippi), Jacques Burkhardt

jacques burkhardt scientific drawings turtles in art

Zungaro zungaro (Teffe, Brazil, 2 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Platessa (Rio de Janeiro, Brazil, 10 June 1865; dark brown), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Unidentified fish (1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings 1856 in art

Turtle (top view), Jacques Burkhardt

jacques burkhardt scientific drawings turtles in art

Stingray (Para, Brazil, 5 January 1866), Jacques Burkhardt

jacques burkhardt scientific drawings 1866 in art

Heroinii (Lake January, Brazil, 27 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Turtle (top view) (Cambridge, Mass., June 1852), Jacques Burkhardt, 1852-06-??

jacques burkhardt scientific drawings turtles in art

Turtle (top view) (May 1852), Jacques Burkhardt, 1852-05-??

jacques burkhardt scientific drawings turtles in art

Turtle on grass (side view) (1857), Jacques Burkhardt, 1857-??-??

jacques burkhardt scientific drawings turtles in art

Shark and anatomical cross sections (Nahant, Mass., 1858), Jacques Burkhardt, 1858-??-??

jacques burkhardt scientific drawings sharks in art

Crabs (10 April 1851; 3 specimens), Jacques Burkhardt, 10 April 1851

jacques burkhardt scientific drawings crabs in art

Turtle (top view) (Cambridge, Mass., May 1852), Jacques Burkhardt, 1852-05-??

jacques burkhardt scientific drawings turtles in art

Ophiothrix angulata (Charleston, South Carolina, 6 January 1852?), Jacques Burkhardt

jacques burkhardt scientific drawings 1852 in art

Turtle on grass (side view) (1857), Jacques Burkhardt, 1857-??-??

jacques burkhardt scientific drawings turtles in art

Turtle (top view) (June 1852), Jacques Burkhardt, 1852-06-??

jacques burkhardt scientific drawings turtles in art

Sternopygus macrurus (Lake January, Brazil, 21 November 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Trachelypterichthys taeniatus (Teffe, Brazil, 30 September 1865 and 9 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Sternopygus macrurus (Teffe, Brazil, 1866), Jacques Burkhardt, 1866-??-??

jacques burkhardt scientific drawings 1866 in art

Colossoma macropomum (Teffe, Brazil, 5 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Turtle (top view) (1858), Jacques Burkhardt, 1858-??-??

jacques burkhardt scientific drawings turtles in art

Farlowella sp. (Teffe, Brazil, 5 and 8 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Platessa (Rio de Janeiro, Brazil, 10 June 1865; light brown), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Testudo polyphemus head (side and front views) (1855), Jacques Burkhardt, 1855-??-??

jacques burkhardt scientific drawings 1855 in art

Serranus (Rio de Janeiro, Brazil, 15 July 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Goeldiella eques (Teffe, Brazil, 27 September 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Pseudacanthicus spinosus and Peckoltia vittata (Manaos, Brazil, 23 November 1865; Maues, Brazil, 19 December 1865; 2 fish), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Turtle on grass (side view), Jacques Burkhardt

jacques burkhardt scientific drawings turtles in art

Mollusk (Mactra solidissima?) (Nahant, Mass., 6 July 1848?, Jacques Burkhardt

jacques burkhardt scientific drawings mollusca in art

Symphysodon aequifasciata (Teffe, Brazil, 26 September 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Serranus (Rio de Janeiro, Brazil, 30 May 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Farlowella sp. (Lake January, Brazil, 23 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Turtle (top view) (1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings turtles in art

Glyptoperichthys gibbiceps and Pseudacanthicus spinosus (Teffe, Brazil, 5 and 9 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Diplectrum Holbrook (Rio de Janeiro, Brazil, 15 July 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Turtle (side view), Jacques Burkhardt

jacques burkhardt scientific drawings turtles in art

Sorubim lima and Pseudoplatystoma fasciatum (Teffe, Brazil, 12 and 17 October 1865; 2 fish), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Turtle head (front view, with mouth open), Jacques Burkhardt

jacques burkhardt scientific drawings turtles in art

Platessa (Rio de Janeiro, Brazil, 10 June 1865; green), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Cambarus (Somerville, Mass., April 1852), Jacques Burkhardt, 1852-04-??

jacques burkhardt scientific drawings 1852 in art

Apistogramma pertensis (Lake January, Brazil, 17 November 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Aequidens mauesanus (Maues, Brazil, 17 December 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Ancistrus sp., Glyptoperichthys gibbiceps, and Hypancistrus sp.? (Teffe, Brazil, August-September 1865; 5 fish), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Chaetobranchus flavescens (Teffe, Brazil, 28 July 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Chaetobranchus flavescens (Lake January, Brazil, 26 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Chaetobranchus semifasciatus (Lake January, Brazil, 26 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Catfish (Teffe, Brazil, 13 October 1865; 3 fish), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Apistogramma (Lake January, Brazil, 27 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Aequidens tetramerus (Teffe, Brazil, 8 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Apistogramma agassizii (Lake January, Brazil, 17 November 1865; 2 fish, plus anatomical cross section), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Ancistrus sp. (Tajapuru, Brazil, 22 August 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Ancistrus sp. (Teffe, Brazil, 7 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Cistudo (top view) (Middleboro, Mass., June 1852), Jacques Burkhardt, 1852-06-??

jacques burkhardt scientific drawings 1852 in art

Chaetobranchus semifasciatus (Teffe, Brazil, 7 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Apistogramma agassizii (Lake January, Brazil, 28 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Catfish (Teffe, Brazil, 9 October 1865; 2 fish), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Apistogramma agassizii (Lake January, Brazil, 22 November 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Astronotus ocellatus (Teffe, Brazil, 26 September 1865; green, red, and yellow), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Cistudo (side view) (1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings 1856 in art

Bryozoa and anatomical parts (Tortugas, Florida, 8 April 1856), Jacques Burkhardt

jacques burkhardt scientific drawings 1856 in art

Aequidens tetramerus (Tajapuru, Brazil, 22 August 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Astronotus ocellatus (Lake January, Brazil, 26 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Apistogramma agassizii (Lake January, Brazil, 22 November 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Catfish (Monte Alegre, Teffe, Brazil, 24 August and 13 October 1865; 3 fish), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Bagre (Belem, Para, Brazil, 14 August 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Belone truncata (Rio de Janeiro, Brazil, 15 July 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Galeus (Rio de Janeiro, Brazil, 19 June 1865), Jacques Burkhardt

jacques burkhardt scientific drawings unidentified carcharhiniformes

Hemisorubim platyrhynchos (Sao Paulo, Brazil, 18 September 1865), Jacques Burkhardt

jacques burkhardt scientific drawings hemisorubim platyrhynchos

Blennius (Rio de Janeiro, Brazil, 22 June 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Cichla monoculus (Manaus, Brazil, 5 September 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Biotodoma cupido (Manaus, Brazil, 16 November 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

2 sorubim (Manaus, Brazil, 6 September 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Catfish marinus (Rio de Janeiro, Brazil, 7 July 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Belone truncata (Rio de Janeiro, Brazil, 14 July 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Acaronia nassa (Santarem, Brazil, 26 August 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Arraia (Lago Jose Assu, Teffe, Brazil, 7 October 1865); Unidentified fish (Rio de Janeiro, Brazil, 10 May 1865) (on verso), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Fossil fish (New York, N.Y., 1847), Jacques Burkhardt, 1847-??-??

jacques burkhardt scientific drawings fish fossils

Fossil fish (New York, N.Y., 1847), Jacques Burkhardt, 1847-??-??

jacques burkhardt scientific drawings fish fossils

Crenicichla marmorata (Maues, Brazil, 16 December 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Menippe mercenary (15 January 1855?), Jacques Burkhardt, 1855-01-15?

jacques burkhardt scientific drawings menippe mercenaria

Fossil fish (New York, N.Y., 1847), Jacques Burkhardt, 1847-??-??

jacques burkhardt scientific drawings fish fossils

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