1965] 
Chickering — Genus Tmarus 
237 
Figs. 12-15. External Anatomy of Tmarus. Figs. 12-13, T. vertumus sp. 
nov., left palpal tibia and tarsus; ventral and retrolateral views, respectively. 
Fig. 14, T. vertumus sp. nov., female abdomen; dorsal view. Fig. 15, T . 
vertumus sp. nov., epigynum from below. 
with a short, obtuse, posterodorsal tubercle; spines short, inconspicu- 
ous; other features essentially typical of females of the genus. Epigy- 
num: essential features shown in Figure 11; obscurely distinctive; 
unlike any other seen during my study of the genus in Panama and the 
