Walde–Waldegg: pp 46–47, Plate XII–2, y (1940) pp. 629-634, photo p 636;
Pérez de Barradas: pp 49, 58–59, Láminas 50A, 51, 53B;
Hernández de Alba: pp 34–35, photos pp 35–37, 94;
Arango: Fig. 23 upper–right;
Duque: p 438, Lámina 32–2;
Reichel–D: pp 45, 111, Plate 18;
Gamboa H: Plates 22–23;
Sotomayor/Uribe: p 55;
Dellenback: p 347, drawing p 581; (2012) p 321, illus p 205 #72;
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