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Fig. 11. Male head, frontal view. A. Merodon bombiformis Hull, 1944 in Revision of the Merodon bombiformis group (Diptera: Syrphidae) - rare and endemic African hoverflies

Fig. 11. Male head, frontal view. A. Merodon bombiformis Hull, 1944 (FSUNS; FSUNS ZA2_079). B. M. multifasciatus Curran, 1939 (USNM 2052372; FSUNS ID 04512). C. M. vittatus Vujić & Likov sp. nov., holotype (NBCN; FSUNS ID 04085). D. M. zebra Vujić & Radenković sp. nov., holotype (RMCA; FSUNS ID 25089). E. M. lotus Vujić & Radenković sp. nov., paratype (FSUNS; FSUNS ID ZA6_066). F. M. nasicus Bezzi, 1915 (TAUI; FSUNS ID 04972). Scale bar = 2 mm.

Fig. 10. Mesonotum, dorsal view. A. Merodon bombiformis Hull, 1944 in Revision of the Merodon bombiformis group (Diptera: Syrphidae) - rare and endemic African hoverflies

Fig. 10. Mesonotum, dorsal view. A. Merodon bombiformis Hull, 1944 (FSUNS; FSUNS ZA2_079). B. M. multifasciatus Curran, 1939 (FSUNS; FSUNS ID ZA5_243). C. M. vittatus Vujić & Likov sp. nov., holotype (NBCN; FSUNS ID 04085). D. M. zebra Vujić & Radenković sp. nov., paratype (RMCA; FSUNS ID 25090). E. M. lotus Vujić & Radenković sp. nov., paratype (FSUNS; FSUNS ID ZA6_066). F. M. nasicus Bezzi, 1915 (TAUI; FSUNS ID 04972). A, C, E-F. Male. B, D. Female. Scale bar = 2 mm.

Fig. 15. Female head, frontal view. A. Merodon bombiformis Hull, 1944 in Revision of the Merodon bombiformis group (Diptera: Syrphidae) - rare and endemic African hoverflies

Fig. 15. Female head, frontal view. A. Merodon bombiformis Hull, 1944 (NMSA; FSUNS ID 04278). B. M. multifasciatus Curran, 1939 (FSUNS; FSUNS ID ZA5_243). C. M. zebra Vujić & Radenković sp. nov., paratype (RMCA; FSUNS ID 25090). D. M. lotus Vujić & Radenković sp. nov., paratype (NMSA; FSUNS ID ZA6_067). E. M. nasicus Bezzi, 1915, lectotype (BMNH; NHMUK010369943). Scale bar = 2 mm.

Fig. 13. Male genitalia. A–C. Merodon bombiformis Hull, 1944 in Revision of the Merodon bombiformis group (Diptera: Syrphidae) - rare and endemic African hoverflies

Fig. 13. Male genitalia. A–C. Merodon bombiformis Hull, 1944 (NMSA; FSUNS ID 04277). D–F. M. multifasciatus Curran, 1939 (NMSA; FSUNS ID 04284). A, D. Epandrium, lateral view. B, E. Epandrium, ventral view. C, F. Hypandrium, lateral view. Abbreviations: ams = anterior margin of surstyle; c = cercus; pl = posterior lobe of surstyle. Medially narrowed hypandrium marked with arrow. Scale bar = 0.5 mm.

Figs 69-76 in Revision of Dadagulella gen. nov., the "Gulella radius group" (Gastropoda: Streptaxidae) of the eastern Afrotropics, including six new species and three new subspecies

Figs 69-76. Salivary glands and genitalia of Dadagulella gen. nov. species. 69. D. radius radius, Amboni. 70. D. pembensis sp. nov., Ngezi. 71. D. browni browni, Kosi Bay. 72. D. delta sp. nov., Mwanihana. 73. D. radius radius, Amboni. 74. D. browni browni, Kosi Bay. 75. D. pembensis sp. nov., Ngezi. 76. D. delta sp. nov., Mwanihana. Abbreviations: ad = anterior duct of salivary gland; ag = albumen gland; at = atrium; bc = bursa copulatrix; bd = bursa duct; dv = diverticulum of vas deferens; e = egg; fo = free oviduct; hdd/t = hermaphroditic duct diverticulum / talon; ma = muscular apex; p = penis; pd = posterior duct of salivary gland; pr = penial retractor muscle; v = vagina; vd = vas deferens.

Figs 41-42 in Revision of Dadagulella gen. nov., the "Gulella radius group" (Gastropoda: Streptaxidae) of the eastern Afrotropics, including six new species and three new subspecies

Figs 41-42. Adult shells of Dadagulella gen. nov. species. 41. D. rondoensis (Verdcourt, 1994) comb. nov., holotype, Rondo (photo by R. Janssen). 42. D. conoidea comb. nov., holotype, Kwamgumi (after Verdcourt 1996).

Figs 43-50 in Revision of Dadagulella gen. nov., the "Gulella radius group" (Gastropoda: Streptaxidae) of the eastern Afrotropics, including six new species and three new subspecies

Figs 43-50. Juvenile shells of Dadagulella gen. nov. species, with dentition emphasized in basal view including earlier dentition visible through the shell. 43-45. D. radius radius, Mbudya I. 46. D. pembensis sp. nov., Ngezi. 47-48. D. browni browni, Mwanihana. 49.? D. ecclesiola sp. nov., Kimboza. 50. D. minareta sp. nov., Kimboza.

Figs 27-35 in Revision of Dadagulella gen. nov., the "Gulella radius group" (Gastropoda: Streptaxidae) of the eastern Afrotropics, including six new species and three new subspecies

Figs 27-35. Adult shells of Dadagulella gen. nov. species. 27. D. delgada (Muratov, 2010) comb. nov., syntype, Cabo Delgado (after Muratov 2010). 28. D. ecclesiola sp. nov., holotype, Kimboza. 29. D. cresswelli sp. nov., holotype, Ngorongoro. 30. D. minareta sp. nov., holotype, Kimboza. 31. D. cuspidata (Verdcourt, 1962) comb. nov., holotype, Shume. 32. D. pembensis sp. nov., holotype, Ngezi. 33. D. nictitans (Rowson & Lange, 2007) comb. nov., holotype, Macha. 34. D. frontierarum sp. nov., holotype, Mtai. 35. D. delta sp. nov., holotype, Mwanihana.

Figs 36-40 in Revision of Dadagulella gen. nov., the "Gulella radius group" (Gastropoda: Streptaxidae) of the eastern Afrotropics, including six new species and three new subspecies

Figs 36-40. Adult shells of Dadagulella gen. nov. species. 36. D. selene (van Bruggen & Van Goethem, 1999) comb. nov., holotype, Virunga NP (after van Bruggen & Van Goethem 1999). 37. D. meredithae (van Bruggen, 2000), holotype, Nyika NP. 38. D. minuscula minuscula (Morelet, 1877), lectotype, Nzwani. 39. D. minuscula minuscula, paralectotype, Nzwani. 40. D. minuscula mahorana subsp. nov., holotype, Mayotte.

Figs 6-26 in Revision of Dadagulella gen. nov., the "Gulella radius group" (Gastropoda: Streptaxidae) of the eastern Afrotropics, including six new species and three new subspecies

Figs 6-26. Adult shells of Dadagulella radius (Preston, 1910) comb. nov., D. browni (van Bruggen, 1969) comb. nov. and their respective subspecies. 6-20. D. radius comb. nov. s.l. 6-8. D. radius calva (Connolly, 1922): 6. Lectotype, Taru Desert. 7. Taru Desert near Malindi. 8. Near Mombasa. 9-20. D. radius radius: 11. Lectotype, Shimba Hills. 12. Gazi. 13. also Gazi. 14. Diani Beach. 15. Amboni. 16. Kimboza. 17. Mkungwe. 18. Pugu. 19. Mbudya I. 20. Jozani. 21-26. D. browni comb. nov. s.l.: 21. D. browni mafiensis subsp. nov., holotype, Mlula. 22. D. browni semulikiensis subsp. nov., holotype, Semuliki NP. 23-26. D. browni browni: 23. Mwanihana. 24. Mzelezi. 25. Pomene Bay. 26. Holotype, Lake Sibayi (after van Bruggen 1969).

Fig. 84 in Revision of Dadagulella gen. nov., the "Gulella radius group" (Gastropoda: Streptaxidae) of the eastern Afrotropics, including six new species and three new subspecies

Fig. 84. Distribution of Dadagulella gen. nov. species, based on published records and material examined here (for additional records of D. meredithae comb. nov. in northern Malawi see van Bruggen 2000). The inset on the left corresponds to the map on the right.

Figs 65-68 in Revision of Dadagulella gen. nov., the "Gulella radius group" (Gastropoda: Streptaxidae) of the eastern Afrotropics, including six new species and three new subspecies

Figs 65-68. Radulae of Dadagulella gen. nov. species. 65. D. radius radius, Amboni. 66. D. pembensis sp. nov., Ngezi, radula in situ on odontophore, ventral view. 67. D. pembensis sp. nov., Ngezi. 68. D. pembensis sp. nov., Ngezi, teeth from ventral end of radular ribbon. Abbreviations: c = central tooth; ii, iii, and iv = examples of bi-, tri- and quadricuspid teeth respectively. All scalebars = 10 μm.

Figs 1-5 in Revision of Dadagulella gen. nov., the "Gulella radius group" (Gastropoda: Streptaxidae) of the eastern Afrotropics, including six new species and three new subspecies

Figs 1-5. Lectotype of Ennea radius Preston, 1910, type species of Dadagulella gen. nov. 1. Apical view. 2. Apertural view. 3. Last two whorls, from left side. 4. Last two whorls, from right side. 5. Umbilical view.

Figs 51-64 in Revision of Dadagulella gen. nov., the "Gulella radius group" (Gastropoda: Streptaxidae) of the eastern Afrotropics, including six new species and three new subspecies

Figs 51-64. Apertures of adult shells of Dadagulella gen. nov. species (not to scale). 51. D. radius calva, lectotype, Taru Desert. 52. D. radius radius, lectotype, Shimba Hills. 53. D. radius radius, Amboni. 54. D. browni mafiensis subsp. nov., holotype, Mlula. 55. D. browni semulikiensis subsp. nov., holotype, Semuliki NP. 56. D. ecclesiola sp. nov., holotype, Kimboza (two views of shell showing basal tooth only visible when shell angled). 57. D. cresswelli sp. nov., holotype, Ngorongoro. 58. D. minareta sp. nov., holotype, Kimboza. 59. D. cuspidata comb. nov., holotype, Shume (note shell angled slightly differently to that in Fig. 31). 60. D. pembensis sp. nov., holotype, Ngezi. 61. D. frontierarum sp. nov., holotype, Mtai. 62. D. minuscula minuscula, lectotype, Nzwani. 63. D. minuscula minuscula, paralectotype, Nzwani. 64. D. minuscula mahorana subsp. nov., holotype, Mayotte.

Figs 77-83 in Revision of Dadagulella gen. nov., the "Gulella radius group" (Gastropoda: Streptaxidae) of the eastern Afrotropics, including six new species and three new subspecies

Figs 77-83. Penes and spermatophores of Dadagulella gen. nov. species. 77. D. radius radius, Amboni, penis with spermatophore in situ. 78. Same, hook and scoop in situ when hook lifted back to expose scoop. 79. D. pembensis sp. nov., Ngezi, penis. 80, same, spermatophore from penis of another individual. 81. D. delta, Mwanihana, penis. 82. D. browni browni, Kosi Bay, penis (diagrammatic). 83. D. radius crassa, Amboni, scoop magnified to show serrated edge. Abbreviations: cl = chitinized lobe; lh = large apical hook; ma = muscular apex; pr = penial retractor muscle; sc = apical scoop; st = spermatophore tail; sr = spermatophore reservoir; vd = vas deferens.

Fig. 17 in Revision of the Siriella brevicaudata species group (Crustacea: Mysida: Mysidae) from the West Indo-Pacific

Fig. 17. Siriella muranoi sp. nov., holotype, ♂, length 5.5 mm, Port Essington, Arafura Sea, Northern Territory, Australia. A. Endopod of pereopod 4, posterior view. B. Endopod of pereopod 5, posterior view. C. Endopod of pereopod 6, posterior view. D. Penis. E. Pleopod 3 (endopod not shown), lateral view. F. Pleopod 5 (endopod not shown), lateral view. G. Pleopod 5 (rami setae not shown), anterior view. Scale bars: A–D = 0.5 mm; E–G = 0.2 mm.

Fig. 16 in Revision of the Siriella brevicaudata species group (Crustacea: Mysida: Mysidae) from the West Indo-Pacific

Fig. 16. Siriella muranoi sp. nov., holotype, ♂, length 5.5 mm, Port Essington, Arafura Sea, Northern Territory, Australia. A. Anterior part of maxilliped 2, posterior view. B. Endopod of pereopod 1, posterior view. C. Endopod of pereopod 2, posterior view. D. Endopod of pereopod 3, posterior view. Scale bars: A = 0.2 mm; B–D = 0.25 mm.

Fig. 15 in Revision of the Siriella brevicaudata species group (Crustacea: Mysida: Mysidae) from the West Indo-Pacific

Fig. 15. Siriella muranoi sp. nov., holotype, ♂, length 5.5 mm, Port Essington, Arafura Sea, Northern Territory, Australia. A. Antenna 1 peduncle, dorsal view. B. Antenna 2 (peduncle and antennal scale), ventral view. C. Mandibles, left and right. D. Mandibular palp, lateral view. E. Labrum. F. Inner ramus of maxilla 1, posterior view. G. Distal part of maxilliped 1, posterior view. Scale bars: A–B, D = 0.25 mm; C, E–G = 0.2 mm.

Fig. 23 in Revision of the Siriella brevicaudata species group (Crustacea: Mysida: Mysidae) from the West Indo-Pacific

Fig. 23. Siriella tabaniocula sp. nov., holotype, ♀, length 6 mm, Ningaloo Reef, Western Australia. A. Habitus, lateral view. B. Habitus, dorsal view. C. Telson. D. Uropodal endopod, dorsal view. E. Uropodal exopod, dorsal view. Scale bars: A–B = 1 mm; C–E = 0.25 mm.

Fig. 20 in Revision of the Siriella brevicaudata species group (Crustacea: Mysida: Mysidae) from the West Indo-Pacific

Fig. 20. Siriella occulta sp. nov., holotype, ♂, length 6.5 mm, Arabian Gulf, Saudi Arabia. A. Pleopod 1, posterior view. B. Pleopod 4, posterior view. C. Uropodal endopod, dorsal view. D. Uropodal exopod, dorsal view. Scale bars: 0.25 mm.