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Fig. 14. Pseudostegias dulcilacuum Markham, 1982 in Abdominal bopyrid parasites (Crustacea: Isopoda: Bopyridae: Athelginae) of diogenid hermit crabs from the western Pacific, with descriptions of a new genus and four new species

Fig. 14. Pseudostegias dulcilacuum Markham, 1982, scanning electron micrographs of male, USNM 1283412 (A–F). A, ventral view; B, ventral view of head, showing antennules, antennae, oral cone, and first pereopods; C, antennules and oral cone; D, left pereopods 1 and 2; E, left pereopod 7; F, pleon. Scale bars = 1 mm [A], 400 µm [B], 200 µm [C], 100 µm [D, E], 500 µm [F].

Fig. 11 in Abdominal bopyrid parasites (Crustacea: Isopoda: Bopyridae: Athelginae) of diogenid hermit crabs from the western Pacific, with descriptions of a new genus and four new species

Fig. 11. Parathelges aniculi (Whitelegge, 1897) Form B, scanning electron micrographs of male, USNM 1283389 (A–D), USNM 1283385 (E, F). A, ventral view of anterior end; B, right antennule, antenna and pereopod 1; C, right antenna, pereopods 1 and 2, oblique view; D, right pereopods 2 and 3; E, right pereopod 2, detail of distal end of dactyl, propodus and carpus; F, left pereopod 7. Scale bars = 500 µm [A], 200 µm [B, C], 200 µm [D], 50 µm [E, F].

Fig. 7. Falsanathelges mariae n in Abdominal bopyrid parasites (Crustacea: Isopoda: Bopyridae: Athelginae) of diogenid hermit crabs from the western Pacific, with descriptions of a new genus and four new species

Fig. 7. Falsanathelges mariae n. sp. scanning electron micrographs of male paratype, USNM 1283376 (A–F). A, ventral view of anterior end; B, dorsal view of head, showing cephalic slits (presumptive sensory structure, see Bourdon et al., 1981); C, oral cone; D, left pereopod 1; E, left pereopod 7; F, seventh pereomere and pleon. Scale bars = 400 µm [A, B], 20 µm [C], 100 µm [D], 200 µm [E], 500 µm [F].

Fig. 9 in Abdominal bopyrid parasites (Crustacea: Isopoda: Bopyridae: Athelginae) of diogenid hermit crabs from the western Pacific, with descriptions of a new genus and four new species

Fig. 9. Parathelges aniculi (Whitelegge, 1897) Form A, scanning electron micrographs of male, USNM 1283383 (A–D), USNM 1283380 6-31-87 (E, F). A, ventral view of anterior end; B, dorsal view of head, showing cephalic slits (presumptive sensory structures, see Bourdon et al., 1981); C, left antennule, antenna, pereopods 1 and 2; D, left pereopods 2 and 3; E, right pereopod 2, detail of distal end of dactyl, propodus and carpus; F, right pereopod 7. Scale bars = 500 µm [A, B], 400 µm [C, F], 200 µm [D], 50 µm [E].

Fig. 12 in Abdominal bopyrid parasites (Crustacea: Isopoda: Bopyridae: Athelginae) of diogenid hermit crabs from the western Pacific, with descriptions of a new genus and four new species

Fig. 12. Parathelges aniculi (Whitelegge, 1897) Form B, scanning electron micrographs of cryptoniscus larva, USNM 1283385 (A-F). A, ventral view; B, head, dorsal view; C, right antennule, ventral view; D, right antenna, laterodorsal view; E, right pereopods 1–4; F, right pereopods 5–7. Scale bars = 200 µm [A], 100 µm [B, D], 50 µm [C, E, F].

Figs 22-33 in A revision of Geostiba of the Western Palaearctic region. XX. Four new species from Turkey and Albania, and additional

Figs 22-33: Geostiba polisitica nov.sp. (22-24: holotype): (22) male habitus; (23) male forebody; (24) head in lateral view; (25) male abdominal segments VI-VII in dorsal view; (26) male tergite VIII; (27) male sternite VIII; (28-29) median lobe of aedeagus in lateral and in ventral view; (30) female tergite VIII; (31) female sternite VIII; (32) spermatheca; (33) distal portion of spermathecal capsule. Scale bars: 22: 1.0 mm; 23-25: 0.5 mm; 26-27, 30-31: 0.2 mm; 28-29, 32-33: 0.1 mm.

Figs 7-14 in A revision of Geostiba of the Western Palaearctic region. XX. Four new species from Turkey and Albania, and additional

Figs 7-14: Geostiba kazica nov.sp. (7-8, 10-11: holotype): (7) male habitus; (8-9) male forebody; (10) head in lateral view; (11) male abdominal segments VI-X in lateral view; (12-13) median lobe of aedeagus in lateral view; (14) spermatheca. Scale bars: 7: 1.0 mm; 8-11: 0.5 mm; 12-14: 0.1 mm.

Figs 15-21 in A revision of Geostiba of the Western Palaearctic region. XX. Four new species from Turkey and Albania, and additional

Figs 15-21: Geostiba extensicollis nov.sp. (15-19: holotype): (15) male habitus; (16) male forebody; (17) head in lateral view; (18) male abdominal segments VI-VIII in lateral view; (19-20) median lobe of aedeagus in lateral view; (21) spermatheca. Scale bars: 15: 1.0 mm; 16-18: 0.5 mm; 19-21: 0.1 mm.

Figs 1-5 in A revision of Geostiba of the Western Palaearctic region. XX. Four new species from Turkey and Albania, and additional

Figs 1-5: Geostiba devia nov.sp. (1-4: holotype): (1) male habitus; (2) male forebody; (3) male abdominal segments VI-VIII in dorsal view; (4) median lobe of aedeagus in lateral view; (5) spermatheca. Scale bars: 1: 1.0 mm; 2-3: 0.5 mm; 4-5: 0.1 mm.

Fig. 111. Dorsoventral cross section through a in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America

Fig. 111. Dorsoventral cross section through a small microconch of Hoploscaphites brevis (Meek, 1876), transitional in morphology to macroconch, BHI 4248, Baculites compressus–B. cuneatus zones, Pierre Shale, Meade County, South Dakota. The plane of the cross section approximately coincides with the line of maximum length. A. Camera lucida of cross section of the adult shell. The stippled area demarcates the mature body chamber. B. Camera lucida of cross section of the inner whorls. C. Photo of cross section of the inner whorls. Measurements are listed in appendix 2, table 4.

Fig. 115 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America

Fig. 115. Ontogenetic breakdown of Hoploscaphites brevis (Meek, 1876), macroconch, USNM 536238, locality unknown, but probably Pierre Shale, Meade or Pennington County, South Dakota. A–F. Six sizes through ontogeny in lateral and ventral views showing changes in ornamentation from early ontogeny (F) to maturity (A).

Fig. 107 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America

Fig. 107. Hoploscaphites brevis (Meek, 1876), small microconchs. A–D. BHI 4245, Baculites cuneatus Zone, Pierre Shale, Meade County, South Dakota. A. Right lateral; B. apertural; C. ventral; D. left lateral. E–H. BHI 4253, transitional in morphology to macroconch, Baculites compressus Zone, Pierre Shale, Meade County, South Dakota. E. Right lateral; F. apertural; G. ventral; H. left lateral. I–L. BHI 2155, Baculites compressus Zone, Pierre Shale, Meade County, South Dakota. I. Right lateral; J. apertural; K. ventral; L. left lateral. M–P. BHI 4276, Baculites compressus–B. cuneatus zones, Pierre Shale, Meade County, South Dakota. M. Right lateral; N. apertural; O. ventral; P. left lateral. Specimens are illustrated natural size.

Fig. 97 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America

Fig. 97. Hoploscaphites brevis (Meek, 1876), small macroconchs. A–D. BHI 4796, Baculites compressus–B. cuneatus zones, Pierre Shale, Meade County, South Dakota. A. Right lateral; B. apertural;

Fig. 94 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America

Fig. 94. Hoploscaphites brevis (Meek, 1876), large macroconchs. A, B. BHI 4789, Baculites compressus– B. cuneatus zones, Pierre Shale, Pennington County, South Dakota. A. Right lateral; B. ventral. C, D. USNM 536221, USGS Mesozoic loc. 22182, Baculites compressus–B. reesidei zones, Bearpaw Shale, Fergus County, Montana. C. Right lateral; D. ventral. A piece of shell is missing from the adapical part of the body chamber. Specimens are illustrated natural size.

Fig. 96 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America

Fig. 96. Hoploscaphites brevis (Meek, 1876), small macroconchs. A–C. BHI 4274, Baculites cuneatus Zone, Pierre Shale, Meade County, South Dakota. A. Apertural; B. ventral; C. left lateral. D–F. BHI 4292,

Fig. 90 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America

Fig. 90. Hoploscaphites brevis (Meek, 1876), large macroconch, AMNH 56882, AMNH loc. 3436, Baculites compressus Zone, Pierre Shale, Meade County, South Dakota. A. Right lateral; B. apertural; C. ventral; D. left lateral. Specimen is illustrated natural size.

Fig. 93 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America

Fig. 93. Hoploscaphites brevis (Meek, 1876), large macroconchs. A, B. AMNH 63442, slightly distorted, Pierre Shale, near Kremmling, Grand County, Colorado. The position of the base of the body chamber is estimated. A. Ventral; B. left lateral. C, D. BHI 4910a, very similar to holotype, Baculites compressus–B. cuneatus zones, Pierre Shale, Pennington County, South Dakota. C. Ventral; D. left lateral. Specimens are illustrated natural size.

Fig. 89 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America

Fig. 89. Hoploscaphites brevis (Meek, 1876), large macroconchs. A–C. BHI 4124, Baculites compressus– B. cuneatus zones, Pierre Shale, Meade County, South Dakota. A. Right lateral; B. apertural; C. ventral. D–F. BHI 4202, Baculites compressus Zone, Pierre Shale, Meade County, South Dakota. D. Apertural; E. ventral; F. left lateral. Specimens are illustrated natural size.

Fig. 88 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America

Fig. 88. Hoploscaphites brevis (Meek, 1876), YPM loc. A6520, Pierre Shale, Sage Creek, Pennington County, South Dakota. A. YPM 355812, 35582, macroconch and microconch, respectively, in the same concretion. B–D. YPM 35576, large macroconch. B. Apertural; C. ventral; D. left lateral. Specimens are illustrated natural size.

Fig. 87 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America

Fig. 87. Hoploscaphites brevis (Meek, 1876), large macroconchs. A–C. BHI 4203, Baculites compressus Zone, Pierre Shale, Meade County, South Dakota. A. Apertural; B. ventral; C. left lateral. D, E. USNM 536222, USGS Mesozoic loc. 23537, Didymoceras cheyennense Zone, Pierre Shale, Carter County, Montana. A chunk of shell is missing from the back of the body chamber. D. Right lateral, E. apertural. Specimens are illustrated natural size.