14,893 Free Images of Scientific

jacques burkhardt scientific drawings harvard university jacques burkhardt watercolor on paper 1865 in art watercolor paintings pencil on paper 1852 in art turtles in art apistogramma

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

jacques burkhardt scientific drawings 1866 in art

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

jacques burkhardt scientific drawings 1852 in art

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

jacques burkhardt scientific drawings 1865 in art

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

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

jacques burkhardt scientific drawings 1865 in art

6 turtle drawings (5 top views, 1 bottom view) (1852), Jacques Burkhardt, 1852-??-??

jacques burkhardt scientific drawings 1852 in art

Portrait of Count Alexander Stroganoff, the President of the Academy of Arts

portrait paintings of sitting men with right hand resting on lap portrait paintings of sitting men with legs crossed

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

Blennius (Rio de Janeiro, Brazil, 22 June 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

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

jacques burkhardt scientific drawings fish fossils

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

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

jacques burkhardt scientific drawings fish fossils

Blennius (Rio de Janeiro, Brazil, 1 June 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Chromide (Rio de Janeiro, Brazil, 13 June 1865), 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

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

jacques burkhardt scientific drawings 1865 in art

Percophis brasiliensis (Rio de Janeiro, Brazil, 16 June 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Glyptoperichthys gibbiceps (Teffe, Brazil, 26 September 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

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

jacques burkhardt scientific drawings turtles in art

Dicrossus maculatus (Mercajetumba, Brazil, 16 December 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Disceus thayeri (Manaos and Teffe, Brazil, 6 September and 17 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Trionyx ferox Georgia (rear and front views) (Roswell, Georgia, 1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings 1856 in art

Priacanthus arenatus (Rio de Janeiro, Brazil, 8 June 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

Pogonopoma parahybae (Parahiba, Brazil, 22 May 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Lingula (three views) (Sullivan's Island, Charleston, South Carolina, 3 March 1852), Jacques Burkhardt

jacques burkhardt scientific drawings 1852 in art

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

jacques burkhardt scientific drawings 1865 in art

Sternopygus macrurus (Lake January, Brazil, 1866), Jacques Burkhardt, 1866-??-??

jacques burkhardt scientific drawings 1866 in art

Prochilodus nigricans (Monte Alegre, Brazil, 25 August 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Labrisomus nuchipinnis (Rio de Janeiro, Brazil, 3 June 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Turtle (top view and three cross sections) (Cambridge, Mass., 21 July 1850), Jacques Burkhardt

jacques burkhardt scientific drawings turtles in art

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

jacques burkhardt scientific drawings 1865 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

Propimelodus eigenmanni (Para, Brazil, 12 August 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

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

jacques burkhardt scientific drawings mollusca in art

Serrasalmus sp. (Maues, Brazil, 18 December 1865; 2 fish), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

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

jacques burkhardt scientific drawings 1865 in art

Zungaro zungaro (Teffe, Brazil, 2 October 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

Platessa (Rio de Janeiro, Brazil, 10 June 1865; dark 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

Sternopygus macrurus (Lake January, Brazil, 21 November 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

Ancistrus sp. (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 marinus (Rio de Janeiro, Brazil, 7 July 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

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

jacques burkhardt scientific drawings hemisorubim platyrhynchos

Belone truncata (Rio de Janeiro, Brazil, 15 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

Crenicichla marmorata (Maues, Brazil, 16 December 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

Heros efasciatus (Manaus, Brazil, 17 November 1865), Jacques Burkhardt

jacques burkhardt scientific drawings heros efasciatus

Fistularia tobacconist (Rio de Janeiro, Brazil, 2 June 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Auchenipterichthys punctatus (Teffe, Brazil, 5 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Centromochlus heckelii (Tajapuru, Brazil, 28 August 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Lepophidium brevibarbe (Rio de Janeiro, Brazil, 13 June 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Symphysodon aequifasciata (Teffe, Brazil, 4 October 1865; 2 fish), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Trionyx ferox Georgia (top view, with side view of head) (November 1855), Jacques Burkhardt, 1855-11-??

jacques burkhardt scientific drawings 1855 in art

Cichlid eggs (Teffe, Brazil, 18 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Cichlid larvae (Teffe, Brazil, 14 September 1865; 2nd drawing), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Testudo elephantopus (front and top views of head) (Galapagos Islands, March 1856), Jacques Burkhardt, 1856-03-??

jacques burkhardt scientific drawings 1856 in art

Cichlid eggs (Teffe, Brazil, 18 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Turtle (bottom view and cross section of head) (Cambridge, Mass., 22 July 1850), Jacques Burkhardt

jacques burkhardt scientific drawings turtles in art

Satanoperca acuticeps (Teffe, Brazil, 27 September 1865), Jacques Burkhardt, 2 February 1866

jacques burkhardt scientific drawings 1865 in art

Symphysodon aequifasciata (Lake January, Brazil, 28 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Rineloricaria sp. (Teffe, Brazil, 28 September 1865; 2 fish), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

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

jacques burkhardt scientific drawings 1865 in art

Trionyx ferox Georgia (bottom view and two anatomical cross sections) (December 1855), Jacques Burkhardt, 1855-12-??

jacques burkhardt scientific drawings 1855 in art

Rineloricaria sp. (Lake Coary, Brazil, 22 October 1865; 2 fish), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Glyptoperichthys gibbiceps and Pseudacanthicus spinosus (Teffe, Brazil, 5 and 9 October 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

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

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

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

Chaetobranchus flavescens (Lake January, Brazil, 26 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

Chaetobranchus semifasciatus (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

Aequidens tetramerus (Tajapuru, Brazil, 22 August 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

Turtle (six views) and turtle head (Cambridge, Mass., 10 June 1852 and 4 July 1855), Jacques Burkhardt

jacques burkhardt scientific drawings turtles in art

Symphysodon aequifasciata (Teffe, Brazil, 26 September 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

Aequidens tetramerus (Teffe, Brazil, 8 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

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

jacques burkhardt scientific drawings 1865 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

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

jacques burkhardt scientific drawings 1865 in art

Cichla n.sp. (Lake Jose Assu, Brazil, 30 August 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

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

1601 - 1700 of 14,893 Next page

/ 149