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608 Family Xanthidae
Genus Hexapanopeus Rathbun, 1898
Key to species
[Based on Rathbun, 1930]
1. Fingers of major cheliped black, brown, or horn color . 2
Fingers of major cheliped white or nearly so.... 5
2. (1) Fifth lateral tooth almost obsolete H. cdribbaeus
Fifth lateral tooth well developed... 3
3. (2) Carpi of walking legs distinctly bilobed on superior margins H. lobipes
Carpi of walking legs not bilobed on superior margins 4
4. (3) Carpus of cheliped covered with tubercles, about 15 in number H. paulensis
Carpus of cheliped not covered with tubercles, although it may be lumpy
H. angustifrons
5. (1) Fingers not deeply grooved; short granulated ridges on carapace... H. hemphillii
Fingers deeply grooved; first two lateral teeth similar to, but smaller than,
remaining teeth H. quinquedentatus
Genus Menippe De Haan, 1833
Key to species
[Adapted from Rathbun, 1930]
Surface of carapace not nodose, almost smooth; anterolateral teeth or lobes shallow
or little projecting; stridulating apparatus present M. mercenaria
Surface of carapace anteriorly nodose; anterolateral teeth strong, projecting well
out from carapace; no stridulating apparatus M. nodifrons