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FIG. 7. — Hemioniscus pagurophilus n in A new species of Tomlinsonia Turquier, 1985 (Crustacea, Cirripedia, Trypetesidae) in hermit crab shells from the Philippines, and a new parasite species of Hemioniscus Buchholz, 1866 (Crustacea, Isopoda, Hemioniscidae)

FIG. 7. — Hemioniscus pagurophilus n. sp.: A, B, holotype ♂ 1.0 mm (USNM 1084119); A, male dorsal view; B, left antenna, antennule and oral cone; C, allotype ♀ 0.90 mm (USNM 1084121), immature female dorsal view; D, holotype ♂ 1.0 mm (USNM 1084119), pleotelson, dorsal view. Scale bars: A-C, 250 µm; D, 50 µm.

FIG. 6. — Tomlinsonia mclaughlinae n in A new species of Tomlinsonia Turquier, 1985 (Crustacea, Cirripedia, Trypetesidae) in hermit crab shells from the Philippines, and a new parasite species of Hemioniscus Buchholz, 1866 (Crustacea, Isopoda, Hemioniscidae)

FIG. 6. — Tomlinsonia mclaughlinae n. sp., scanning electron micrographs: A-C, paratype ♀ (USNM 1084104); A, mouth cirri and mouthparts, dorsal view; B, mouth cirri and labrum, lateral view; C, maxillae and mandibles, position of stub setae at base of maxillae II shown by arrowhead; D, E, paratype ♀ 5.9 mm (USNM 1084106); D, stub setae; E, denticules of maxilla II. Abbreviations: MD, mandible; M1, maxilla I; M2, maxilla II. Scale bars: A, B, 500 µm; C, 100 µm; D, 5 µm; E, 2.5 µm.

FIG. 4. — Tomlinsonia mclaughlinae n in A new species of Tomlinsonia Turquier, 1985 (Crustacea, Cirripedia, Trypetesidae) in hermit crab shells from the Philippines, and a new parasite species of Hemioniscus Buchholz, 1866 (Crustacea, Isopoda, Hemioniscidae)

FIG. 4. — Tomlinsonia mclaughlinae n. sp., paratype ♀ (USNM 1084165), scanning electron micrographs: A, right opercular bar, lateral outer view; B, left opercular bar, lateral outer view; C, mantle aperture, ventral view (arrowheads show inner ridges); D, multifid denticules on inside of right opercular bar and along inner ridge, apical view; E, denticules and setae on outside of left opercular bar, lateral view; F, terminal cirri, lateral view, arrowhead shows position of cirral "cushion" (inset shows terminal view of cirrus); G, terminal cirri, lateral view, arrowheads show position of cirral "cushions"; H, terminal cirral "cushion" (inset shows denticules of "cushion"). Scale bars: A-C, 500 µm; D, E, H, 20 µm; F, G, 200 µm; insets of F, H, 2.5 µm.

FIG. 3. — Tomlinsonia mclaughlinae n in A new species of Tomlinsonia Turquier, 1985 (Crustacea, Cirripedia, Trypetesidae) in hermit crab shells from the Philippines, and a new parasite species of Hemioniscus Buchholz, 1866 (Crustacea, Isopoda, Hemioniscidae)

FIG. 3. — Tomlinsonia mclaughlinae n. sp., paratype ♀ (USNM 1084097) (note: only selected patches of denticules shown in A, B, J, K): A, right opercular bar, lateral outer view; B, right opercular bar, lateral inner view; C, denticules on outside of right opercular bar, apical view; D, denticules and setae on distal edge of right opercular bar; E, denticules and setae on outside of right opercular bar, lateral view; F, denticules on inside of right opercular bar, apical view; G, multifid denticules on inside of right opercular bar and along inner ridge, apical view; H, plumose seta on inside of right opercular bar; I, denticules on inside of right opercular bar, apical view; J, left opercular bar, lateral outer view; K, right opercular bar, lateral inner view; L, denticules and setae on edge of left opercular bar; M, multifid denticules and setae on outside of left opercular bar, lateral view; N, multifid denticules on inside of left opercular bar, apical view; O, denticules on inside of left opercular bar, apical view; P, denticules along inner ridge (curved line) of right opercular bar, apical view; Q, denticules and setae on inside of left opercular bar, apical view. Scale bars: A, B, J, K, 250 µm; C-F, H, I, L-N, 6.25 µm; G, O-Q, 12.5 µm.

FIG. 5. — Tomlinsonia mclaughlinae n in A new species of Tomlinsonia Turquier, 1985 (Crustacea, Cirripedia, Trypetesidae) in hermit crab shells from the Philippines, and a new parasite species of Hemioniscus Buchholz, 1866 (Crustacea, Isopoda, Hemioniscidae)

FIG. 5. — Tomlinsonia mclaughlinae n. sp.: A, paratype ♀ (USNM 1084097), terminal cirrus, lateral view, arrowhead shows position of cirral "cushion" (inset shows two views of terminal hooks); B, paratype ♀ (USNM 1084112), mouth cirri, lateral view (note: plumose nature of setae not shown); C-E, paratype ♀ (USNM 1084097); C, labrum, lateral view (inset shows short setae that cover extensions of labrum); D, mandible; E, maxilla I and maxilla II. Scale bars: A, B, 50 µm; C, 125 µm; D, 25 µm; E, 12.5 µm; insets of A, C, 6.25 µm.

FIG. 2. — Tomlinsonia mclaughlinae n in A new species of Tomlinsonia Turquier, 1985 (Crustacea, Cirripedia, Trypetesidae) in hermit crab shells from the Philippines, and a new parasite species of Hemioniscus Buchholz, 1866 (Crustacea, Isopoda, Hemioniscidae)

FIG. 2. — Tomlinsonia mclaughlinae n. sp.: A-C, paratype ♀ 5.90 mm (USNM 1084105); A, shell of Drupella cornus cut away to show barnacle in situ, view of columella with aperture (arrowhead) and striae extending toward apex of shell, chitinous attachment disc shown in gray; B, distal end of chitinous attachment disc covering body of barnacle toward apex of shell, minute tubercles that cover entire disc are only drawn in the upper-left portion; C, female removed from shell shown in A, viewed from right side in same orientation as in A (arrow shows rounded dorsal side of mantle orifice), chitinous attachment disc (in gray) is slightly lifted off of barnacle, distal portion of body not drawn; D, paratype ♂ 0.50 mm (USNM 1084107), lateral view; E, paratype ♀ (USNM 1084102), aperture on columella of unidentified gastropod shell; F, G, paratype ♂ 0.68 mm (USNM 1084109); F, lateral view; G, dorsal view. Scale bars: A, 2.0 mm; B, D, F, G, 125 µm; C, E, 500 µm.

FIG. 9. — Hemioniscus pagurophilus n in A new species of Tomlinsonia Turquier, 1985 (Crustacea, Cirripedia, Trypetesidae) in hermit crab shells from the Philippines, and a new parasite species of Hemioniscus Buchholz, 1866 (Crustacea, Isopoda, Hemioniscidae)

FIG. 9. — Hemioniscus pagurophilus n. sp., paratype ♂ 0.86 mm (USNM 1084123), scanning electron micrographs: A, right pereopods 3-7; B, propodi and dactyli of right pereopods 5 and 6; C, left pleopod 1. Scale bars: A, 100 µm; B, 20 µm; C, 50 µm.

FIG. 8. — Hemioniscus pagurophilus n in A new species of Tomlinsonia Turquier, 1985 (Crustacea, Cirripedia, Trypetesidae) in hermit crab shells from the Philippines, and a new parasite species of Hemioniscus Buchholz, 1866 (Crustacea, Isopoda, Hemioniscidae)

FIG. 8. — Hemioniscus pagurophilus n. sp., paratype ♂ 0.86 mm (USNM 1084123), scanning electron micrographs: A, male ventral view; B, anterior end, ventral view; C, left antennule and base of antenna; D, coxal plates of pereomeres 1-3, right side; E, right pereopods 1 and 2. Scale bars: A, 400 µm; B, 100 µm; C, D, 50 µm; E, 20 µm.

FIG. 1. — Tomlinsonia mclaughlinae n in A new species of Tomlinsonia Turquier, 1985 (Crustacea, Cirripedia, Trypetesidae) in hermit crab shells from the Philippines, and a new parasite species of Hemioniscus Buchholz, 1866 (Crustacea, Isopoda, Hemioniscidae)

FIG. 1. — Tomlinsonia mclaughlinae n. sp.: A, holotype ♀ 8.15 mm (USNM 1084093), entire female removed from shell of Drupella cornus, female viewed from right side showing flattened distal margin of right opercular bar, position of male (in gray) shown by arrowhead; B, C, paratype ♀ 3.69 mm (USNM 1084107); B, female in shell cracked to expose body of barnacle, aperture of barnacle burrow on columella shown by arrowhead; C, left side of specimen in B, showing thin opercular bar with "notch" indicated by arrowhead (striae extending toward apex shown by dark dotted lines in B and C). Scale bars: 1 mm.

FIGURE 12 in Four new species and a new record of Cryptoniscoidea (Crustacea: Isopoda: Hemioniscidae and Crinoniscidae) parasitising stalked barnacles from New Zealand

FIGURE 12. Female and larval Scalpelloniscus vomicus sp. nov. A, host specimen Smilium zancleanum (NIWA 43461), arrow indicates gall formed by female S. vomicus; B, C, dorsal and ventral view of mature female paratype (NIWA 35033); D–I epicaridium larvae (NIWA 35053); D, lateral view of epicaridium larva; E, antenna; F, pereopod 1; G; pleopod 1, H, endopod of pleopod 1 (setation omitted); I, uropod and anal tube, not all setation shown. Scale Bars: A = 1 cm; B, C = 0.5 mm; D–I = 50 µm.

FIGURE 11 in Four new species and a new record of Cryptoniscoidea (Crustacea: Isopoda: Hemioniscidae and Crinoniscidae) parasitising stalked barnacles from New Zealand

FIGURE 11. Scanning electron micrographs of Scalpelloniscus vomicus sp. nov. paratypes (NIWA 43476). A, dorsal view; B, lateral view; C, pleotelson; D, antennule; E, pereopod 4; F, pereopod 3; G; detail of lateral teeth of antennule. Scale bars: A, B = 200 μm; C, D = 30 μm; E, F = 20 μm; G = 10 μm.

FIGURE 8 in Four new species and a new record of Cryptoniscoidea (Crustacea: Isopoda: Hemioniscidae and Crinoniscidae) parasitising stalked barnacles from New Zealand

FIGURE 8. Scalpelloniscus nieli sp. nov. A–E (B–D holotype NIWA 35060; A, E paratype NIWA 35031) male; F female (NIWA 43468) A, antennule; B, antenna; C, pereopod 4; D, pereopod 7; E, pleotelson, not all setation shown; F, female, ventral view. Cuticular striations shown are representative only. Scale bars: A–E = 50 μm, F = 1 mm.

FIGURE 7 in Four new species and a new record of Cryptoniscoidea (Crustacea: Isopoda: Hemioniscidae and Crinoniscidae) parasitising stalked barnacles from New Zealand

FIGURE 7. Female Crinoniscus politosummus sp. nov. paratypes A, 2 females in situ (NIWA 43485) B, lateral view of female paratype (NIWA 43388). Scale bars: A = 1 mm; B = 0.5 mm.

FIGURE 5 in Four new species and a new record of Cryptoniscoidea (Crustacea: Isopoda: Hemioniscidae and Crinoniscidae) parasitising stalked barnacles from New Zealand

FIGURE 5. Male Crinoniscus politosummus sp. nov., holotype (NIWA35052). A, antennule; B, antenna; C, pereopod 2; D, pereopod 5; E, pereopod 7; F, pleotelson, not all setation shown. Cuticular striations shown are representative only. Scale bar = 50 μm.

FIGURE 6 in Four new species and a new record of Cryptoniscoidea (Crustacea: Isopoda: Hemioniscidae and Crinoniscidae) parasitising stalked barnacles from New Zealand

FIGURE 6. Male Crinoniscus politosummus sp. nov. paratypes (NIWA 43479). A, dorsal view; B, lateral view; C, pleotelson; D, ventral view of anterior segments; E, antennule; F, second coxal plate; G, pereopod 2; H, pereopods 3 & 4; I, pereopod 7; J, propodus-dactylus junction pereopod 3; K, uropods, ventral view. Scale bars: A, B = 100 μm; C, D, K = 50 μm; E–I = 20 μm; J = 10 μm.

FIGURE 4 in Four new species and a new record of Cryptoniscoidea (Crustacea: Isopoda: Hemioniscidae and Crinoniscidae) parasitising stalked barnacles from New Zealand

FIGURE 4. Female Crinoniscus cephalatus sp. nov., paratypes; A, B, scanning electron micrographs of recently moulted immature female attached to host (NIWA 43478); C–E, mature female (NIWA 35029). C, D lateral and ventral view of female; E, mouthparts. Scale bars: A = 200 μm; B = 100 μm; C, 1 mm; E, 50 μm.

FIGURE 3 in Four new species and a new record of Cryptoniscoidea (Crustacea: Isopoda: Hemioniscidae and Crinoniscidae) parasitising stalked barnacles from New Zealand

FIGURE 3. Male Crinoniscus cephalatus sp. nov., paratypes (NIWA 43477). A, lateral view; B, dorsal view of same specimen; C, ventral view of anterior section; D, antennule; E, pereopod 3 & 4; F, pleopod 1; G, propodus-dactylus junction of pereopod 5; H, pleotelson. Scale bars A, B = 200 μm; C = 100 μm; D, E, H = 20 μm; F = 50 μm; G = 10μm.

FIGURE 1 in Four new species and a new record of Cryptoniscoidea (Crustacea: Isopoda: Hemioniscidae and Crinoniscidae) parasitising stalked barnacles from New Zealand

FIGURE 1. Map of New Zealand showing localities of where the current specimens of A, Crinoniscus cephalatus sp. nov. (Ο), C. politosummus sp. nov. (Π); B, Scalpelloniscus nieli sp. nov. (Ο), S. cf. penicillatus Grygier, 1981b () and S. vomicus sp. nov. (Π) were collected.

FIGURE 2 in Four new species and a new record of Cryptoniscoidea (Crustacea: Isopoda: Hemioniscidae and Crinoniscidae) parasitising stalked barnacles from New Zealand

FIGURE 2. Male Crinoniscus cephalatus sp. nov. A, B, D–F Holotype (NIWA 35048). C, paratype (NIWA 43460). A, antennule; B, antenna; C, pereopod 5; D, pereopod 7; E pleotelson; F pleopod 2. Not all setation shown in E and F. Cuticular striations shown are representative only. Scale bars: A, C–F = 50 μm, B = 100 μm.