Fissiphallius

Tourinho, Ana Lúcia & González, Abel Pérez, 2006, On the family Fissiphalliidae Martens, 1988, with descriptions of two new Amazonian species (Arachnida: Opiliones: Laniatores), Zootaxa 1325, pp. 235-254 : 238

Key to the species of Fissiphallius

1 Eye mound armed with a single strong sharply pointed medial apophysis (see Pinto da Rocha 2004: fig. 1), tibia II enlarged in the male (see Pinto da Rocha 2004: fig. 4), free sternite IV with strong medial apophysis (see Pinto da Rocha 2004: fig. 2) F. martensi

­ Eye mound armed with a pair of medial apophyses, tibia II not enlarged in the male, free sternite IV without strong medial apophysis.......................................................... 2

2 Free sternite IV with a pair of small spiniform apophyses, anal operculum armed with strong spiniform apophysis ........................................................................................... 3

­ Free sternite IV unarmed, anal operculum without strong spiniform apophysis .......... 4

3 Free tergites I and II armed with a long spiniform medial apophysis ( Figs 2, 4, 8 ), eye mound armed with two long spiniform apophyses ( Fig. 2 ) .................... F. tucupi n. sp.

­ Free tergites I and II without strong spiniform medial apophysis ( Figs 1, 3, 7 ), eye mound armed with two short spiniform apophyses ( Fig. 1 ) ................... F. chicoi n. sp.

4 Free sternite V with a pair of short spiniform apophyses ............................................ 5

­ Free sternite V unarmed (see Martens 1988: fig. 28) .................................. F. spinulatus

Figures

FIGURES 1 – 8. Fissiphallius chicoi n. sp., male holotype (1, 3, 5, 7); Fissiphallius tucupi n. sp., male holotype (2, 4, 6, 8). Body (1 – 2 dorsal view, 3 – 4 lateral view, 5 – 6 ventral view, 7 – 8 posterior view). Scale bars = 0.1 mm (1, 3, 5, 7), 0.5 mm (2, 4, 6, 8).