1847

• Leidy, J. 1847. History and anatomy of the Hemipterous genus Belostoma. Journal of the Academy of Natural Sciences of Philadelphia ser.2.1(1): 57-67 BHL
• Leidy, J. 1847. Miscellanea zoologica. Journal of the Academy of Natural Sciences of Philadelphia ser.2.1(1): 67-70 BHL

1850

• Leidy, J. 1850. Descriptions of two species of Distoma with the partial history of one of them. Journal of the Academy of Natural Sciences of Philadelphia ser.2.1(4): 301-310 BHL
• Leidy, J. 1850. Descriptions of some American annelida abranchia. Journal of the Academy of Natural Sciences of Philadelphia ser.2.2(1): 43-50 BHL

1852

• Leidy, J. 1852. Description of a new species of crocodile from the Miocene of Virginia. Journal of the Academy of Natural Sciences of Philadelphia ser.2.2(2): 135-138 BHL

1855

• Leidy, J. 1855. Contributions towards a knowledge of the marine Invertebrate fauna of the coasts of Rhode Island and New Jersey. Journal of the Academy of Natural Sciences of Philadelphia, Series 2. 3(11): 135–152, pls. 10-11. BHL Reference page. 

1856

• Leidy, J. 1856. Notice of remains of extinct vertebrated animals of New Jersey, collected by Prof. Cook of the State Geological Survey under the direction of Dr. W. Kitchell. Proceedings of the Academy of Natural Sciences, Philadelphia 8: 220–221. Reference page. 

1859

• Leidy, J. 1859. Descriptions of Xystracanthus arcuatus and Cladodus occidentalis. Proceedings of the Academy of Natural Sciences of Philadelphia (unnumbered volume): 3. Reference page. 

• Leidy, J. 1859 ["1858"]. "Manayunkia speciosa" [untitled meeting report of the April 13th]. Proceedings of the Academy of Natural Sciences of Philadelphia. 10: 90. BHL Reference page. 

1887

• Leidy, J. 1887. Biographical notice of Isaac Lea, LL.D. Proceedings of the American Philosophical Society. 24: 400-403. BHL