I 82 
Psyche 
[June 
Figs. 1-6. Acanthophrynus coronatus. Figs. 1-4. Specimen from San 
Bias, Nayarit. Fig. 1. Inner face of right chelicera. Fig. 2. Inner face of 
left chelicera. Fig. 3. Plectrum of right chelicera. Fig. 4. Lyre of left 
chelicera. Fig. 5. Specimen from San Marcos, Jalisco, stridulating apparatus 
of left chelicera. Fig. 6. Specimen from Mazatlan, Sinaloa, stridulating 
apparatus of left chelicera. Fig. 7. Musicodamon atlanteus, stridulating 
apparatus of left chelicera (after Fage, 1939), same orientation as Figs. 
5 and 6. Scale line = 5 mm for Figs. 1 and 2, 2.1 mm for Figs. 3-6. 
Fig. 7 not to scale. 
