Fig. 20 in Rare Snakes-Five New Species from Eastern Panama: Reviews of Northern Atractus and Southern Geophis (Colubridae: Dipsadinae)

Fig. 20. Hemipenes of Geophis. Right­side organs shown at same scale (×6.7) in sulcate and asulcate view. A. Geophis brachycephalus, from a highland population with pattern polymorphism (UMMZ 57958; Boquete, western Panama). B. Geophis, species inquirenda, from Atlantic­versant population apparently lacking pattern polymorphism (La Loma, western Panama; MCZ 19326).