FIGURE 20. Haploops robusta G.O.Sars, 1891 in On some Haploops species collected in the North Atlantic Ocean with the description of Haploops islandica n. sp. (Crustacea: Gammaridea: Ampeliscidae) [Contribution to the knowledge of the Haploops genus. 8.]

FIGURE 20. Haploops robusta G.O.Sars, 1891, female: A: Dorsal tuft of setae(1) on the posterodorsal margin of pleon 2, dorsal margin of pleon 3 (2); Haploops islandica, n. sp., female B: Pleon, dorsal seta broken, note the canal of the seta (arrow); C: Pleon, a terminal part of a dorsal seta; D: Urosome, an entire dorsal seta, note the apical pore (1) covered by a velum (2) and the numerous digitations (4) on the shaft (3); E: enlargement of distal part of the previous view, the apical pore (1), the velum (2), the shaft (3) with the numerous digitations (4). The organization of the dorsal setae (Pleon and Urosome) suggest a chemosensitive function of these setae.