FIGURE 6 in Additional morphological information on Dipteropeltis hirundo Calman, 1912, and a description of Dipteropeltis campanaformis n. sp. (Crustacea: Branchiura) from two characiform benthopelagic fish hosts from two Northern rivers of the Brazilian Amazon

FIGURE 6. Micrographs of an egg bearing female Dipteropeltis campanaformis n. sp. (Paratype, INPA 423i). Scanning electron micrographs. (A) Antennule and antenna. a = antenna, ant = antennule. (B) Triangular oval anterior respiratory area located on the ventral surface of the carapace. ar = anterior respiratory area. Dashed line drawn slightly outside of the structure, indicates the outline of the respiratory area. (C) Ovoid posterior respiratory area located on the ventral surface of the carapace. pr = posterior respiratory area. Dashed line drawn slightly outside of the structure, indicates the outline of the respiratory area. (D) Section of the membrane of the maxillule. z1 = zone 1, z2 = zone 2, z3 = zone 3. (E) Sucker zone 1 (z1) consisting of lineated rows of micro papillae. (F) Sucker zone 2 (z2) consisting of suctorial plates. (G) Sucker zone 3 (z3) consisting of a single ovoid, elongated discoidal scale. (H) Mouth. labi = labium, labr = labrum, lp = lateral protrusion, ls = labial spines, m = mandible. (I) Upper lip bearing the setules. labr = labrum, m = mandible, s = setules. (J) Left lateral protrusion of the upper lip bearing the left mandible. lp = lateral protrusion, m = mandible. (K) Tubular labial spines. ls = labial spines. (L) Setae of the internal dorsal surface of the mouth. (M) Light micrograph of the diminutive preoral structure. Dashed line drawn slightly outside of the structure, indicates the outline of the preoral structure, mx = maxillules, ps = preoral structure. Scanning electron micrographs. (N) Pectinate scales of the protrusion on the third segment of the maxillae. (O) Flattened spermathecal spine area sparsely scattered with coarse pectinate scales interspersed with setules. arrows = setules, ss = spermathecal spines, # = course pectinate scales. Scale bars: A, B, 100 µm; C, 500 µm; D, O, 20 µm; E, J, K, M, 10 µm; F, G, I, 5 µm; H, N, 50 µm; L, 2 µm.