Two new species of Benthana Budde-Lund, 1908 (Crustacea: Isopoda: Philosciidae) from Brazil

Figures & data

Figure 1 Male pleopod 1 exopod, categories of the shape of the outer distal margin. A: Benthana picta (Brandt, 1833); B: Benthana longicaudata (Lemos de Castro, 1958); C: Benthana schmalfussi n. sp.

Figure 2 Male pleopod 1 exopod: indentation depth of the outer distal margin. e, central axis (sensu Araujo and Lopes 2003); E, distal point of central axis; A, distal point of the dentiform protrusion; B, point of maximum depth of the indentation measured from line (a); a, line between A and E; b, line between B and E; α, angle defining the depth of the indentation.

Table 1 Benthana species grouped according to the three categories of the angle measured on the outer distal margin of the male pleopod 1 exopod (see Figures 1 and 2).

Low indentation, 0° ≥ 5°	Medium indentation, 6° ≥ 20°	High indentation,  ≥ 21°
Benthana bocainensis Lemos de Castro, 1958	Benthana convexa Lemos de Castro, 1958	Benthana longicornis Verhoeff, 1941
Benthana dimorpha Lemos de Castro, 1985	Benthana albomarginata Lemos de Castro, 1958	Benthana cairensis Sokolowicz, Araujo & Boelter, 2008
Benthana santosi Lemos de Castro, 1958	Benthana werneri Lemos de Castro, 1958	Benthana serrana Araujo & Lopes, 2003
Benthana iporangensis Lima & Serejo, 1993	Benthana longipenis Lemos de Castro, 1958	Benthana sulcata Gruner, 1955
Benthana itaipuensis Campos-Filho & Araujo, 2011	Benthana trinodulata Araujo & Lopes, 2003	Benthana schmalfussi n. sp.
Benthana moreirai Lemos de Castro, 1985	Benthana araucariana Araujo & Lopes, 2003
Benthana olfersii (Brandt, 1833)	Benthana longicaudata (Lemos de Castro, 1958)
Benthana picta (Brandt, 1833) Benthana taeniata Araujo & Buckup, 1994
Benthana schubarti Lemos de Castro, 1958
Benthana guayanas n. sp.

Figure 3 Benthana schmalfussi n. sp. (male paratype). A: habitus; B: cephalon, dorsal view; C: cephalon, frontal view; D: pereon epimeron 4; E: noduli laterales coordinates d/c; F: noduli laterales coordinates b/c; G: telson; H: antennule; I: left mandible; J: right mandible; K: maxillule; L: maxilla; M: maxilliped. Scales: A = 1 mm; B and C = 0.16 mm; D, G–M = 0.1 mm.

Figure 4 Benthana schmalfussi n. sp. (male paratype). A: pereopod 1; B: pereopod 2; C: pereopod 3; D: dactylus; E: pereopod 4; F: pereopod 5; G: pereopod 7. Scales: 0.1 mm.

Figure 5 Benthana schmalfussi n. sp. (male paratype). A: pleopod 1 exopod; B: pleopod 1 endopod; C: pleopod 2 exopod; D: pleopod 2 endopod; E: pleopod 3; F: pleopod 4 exopod; G: pleopod 5 exopod; H: genital papilla; I: uropod. Scales: 0.1 mm.

Figure 6 Benthana guayanas n. sp. (male paratype). A: habitus; B: cephalon dorsal view; C: cephalon frontal view; D: noduli laterales coordinates d/c; E: noduli laterales coordinates b/c; F: telson; G: epimera 4; H: antennule; I: antenna; J: left mandible; K: right mandible; L: maxillule; M: maxilla; N: maxilliped. Scales: A = 1 mm, B and C = 0.16 mm, F–N = 0.1 mm.

Figure 7 Benthana guayanas n. sp. (male paratype). A: pereopod 1; B: pereopod 2; C: pereopod 7. Scales: 0.1 mm.

Figure 8 Benthana guayanas n. sp. (male paratype). A: pleopod 1 exopod; B: pleopod 1 endopod; C: pleopod 2 exopod; D: pleopod 2 endopod; E: pleopod 3; F: pleopod 4; G: pleopod 5; H: genital papilla; I: uropod. Scales: 0.1 mm.

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