Figure 8.

Comparison of the musculature associated with the vaginal canal in haplotype groups one through six. The Tobrilinae, Groups 1 and 5, display weak or poorly developed vaginal musculature. Group 3 appears to have moderately developed musculature, and Groups 2, 4, and 6 are all characterized by strongly developed muscles arranged in a multi-layered, bulb-like configuration. Blue box around NID 12574 indicates incongruent specimen with respect to the COI and 18S trees and has a strong, bulb-like musculature characteristic of Group 2.