Notice: Because of the federal government shutdown, Bureau.gov is not being updated and the agency will not be able to respond to inquiries until appropriations are enacted. For more information please visit: https://www.doi.gov/shutdown

Question 1
Question 2
Question 4
Question 6
Question 21
Question 23
Question 24
Question 29
Question 32

Go to Question:

33a. Caudal ramus slightly longer than wide, with prominent dorsal hook (dorsal, lateral).

Elaphoidella bidens

33b. Caudal ramus 2-3 times longer than wide, with dorsal ridge but not with hook (dorsal, lateral).

Elaphoidella subgracilis