Ologamasidae

Castilho, Raphael C., Silva, Edmilson S., De, Gilberto J. & Halliday, Bruce, 2016, Catalogue of the family Ologamasidae Ryke (Acari: Mesostigmata), Zootaxa 4197 (1), pp. 1-147 : 23-25

publication ID	https://doi.org/10.5281/zenodo.168445
DOI	https://doi.org/10.5281/zenodo.5200654
persistent identifier	https://treatment.plazi.org/id/03EF1D76-C879-9603-FF2F-E035FA040E67
treatment provided by	Plazi (2016-11-25 07:25:56, last updated 2024-11-25 21:34:54)
scientific name	Ologamasidae
status

Treatment

Key to genera of Ologamasidae View in CoL (adult females)

1. Podonotal and opisthonotal shields completely separated...................................................... 2

- Podonotal and opisthonotal shields fused to form a holonotal shield, line of fusion may or may not be visible............ 22

2. Epistome with club-shaped anterocentral extension; peritrematal and exopodal shields fused by a narrow connection posterior

to stigma..................................................................... Geogamasus View in CoL (part) ( Figs 1–4 View FIGURES 1 – 8. 1 – 4 ) - Epistome without club-shaped anterocentral extension; peritrematal shield not fused to exopodal shield, or fused to exopodal shield posterior to stigma by a connection wider than width of peritreme......................................... 3

3. Dorsal shield setae inserted on long stalks............................................... Oriflammella View in CoL ( Figs 5–8 View FIGURES 1 – 8. 1 – 4 )

- Dorsal shield setae not inserted on stalks.................................................................. 4

4. Opisthonotal and ventrianal shields fused.................................................................. 5

- Opisthonotal and ventrianal shields not fused ................................................................ 9

5. Presternal plates absent; pretarsus I absent................................................ Euepicrius View in CoL ( Figs 9–12 View FIGURES 9 – 16. 9 – 12 )

- Presternal plates present; pretarsus I present................................................................ 6

6. With one pair of presternal plates.................................................... Gamaselliphis View in CoL ( Figs 13–16 View FIGURES 9 – 16. 9 – 12 )

- With two pairs of presternal plates....................................................................... 7

7. Opisthogastric region without latero-diagonal fissure; peritreme extending anteriorly to anterior margin of coxa II............................................................................................ Hiniphis View in CoL ( Figs 17–20 View FIGURES 17 – 24. 17 – 20 )

- Opisthogastric region with a distinct latero-diagonal fissure; peritreme extending anteriorly to region of coxa I........... 8

8. Peritrematal shield fused only to exopodal shield near coxa IV.............................. Desectophis View in CoL ( Figs 21–24 View FIGURES 17 – 24. 17 – 20 )

- Peritrematal shield fused to exopodal shield near coxa IV and ventrianal shield..................... Acuphis View in CoL ( Figs 25–28 View FIGURES 25 – 32. 25 – 28 )

9. Podosomal section of dorsum with 28 or more pairs of setae................................................... 10

- Podosomal section of dorsum with fewer than 25 pairs of setae............................................... 12

10. Opisthosomal section of dorsum with more than 30 pairs of setae................................ Pilellus View in CoL ( Figs 29–32 View FIGURES 25 – 32. 25 – 28 )

- Opisthosomal section of dorsum with fewer than 21 pairs of setae............................................. 11

11. Podosomal section of dorsum with 32 pairs of setae and a medial unpaired seta; trochanter IV with six setae, genu III with ten setae and tibia III with nine setae.................................................. Notogamasellus View in CoL ( Figs 33–36 View FIGURES 33 – 40. 33 – 36 )

- Podosomal section of dorsum with 28 pairs of setae; trochanter IV with five setae, genu III with nine setae and tibia III with eight setae................................................................ Podonotogamasellus View in CoL ( Figs 37–40 View FIGURES 33 – 40. 33 – 36 )

12. Peritreme extending anteriorly at most to median region of coxa III....................... Allogamasellus View in CoL ( Figs 41–44 View FIGURES 41 – 48. 41 – 44 )

- Peritreme extending anteriorly at least to median region of coxa II.............................................. 13

13. Setae av2, pv2 on tibia I long, thick, spine-like............................................................ 14

- Setae av2, pv2 on tibia I unmodified...................................................................... 15

14. Tarsus I with a small pair of claws; dorsal shield setae j 1 not on prominent protuberance; on genu I av2 spine-like, al1 unmod- ified......................................................................... Heterogamasus View in CoL ( Figs 45–48 View FIGURES 41 – 48. 41 – 44 )

- Tarsus I without claws; dorsal shield setae j 1 on prominent protuberance; on genu I al1 spine-like, av2 unmodified......................................................................................... Evanssellus View in CoL ( Figs 49–52 View FIGURES 49 – 56. 49 – 52 )

15. Presternal plates absent............................................................. Cyrtolaelaps View in CoL ( Figs 53–56 View FIGURES 49 – 56. 49 – 52 )

- Presternal plates present............................................................................... 16

16. With one pair of presternal plates; if with two pairs (in Rhodacaroides aegypticus ), peritrematal shield not fused with exopodal shield near coxa IV.................................................................................. 17

- With 2–5 pairs of presternal shields; if with two pairs, peritrematal shield fused with exopodal shield near coxa IV....... 19

17. Dorsal shields with some setae pilose and/or spatulate.................................... Acugamasus View in CoL ( Figs 57–60 View FIGURES 57 – 64. 57 – 60 )

- Dorsal shields without pilose or spatulate setae............................................................ 18

18. Peritrematal shield not fused with exopodal shield near coxa IV........................... Rhodacaroides View in CoL ( Figs 61–64 View FIGURES 57 – 64. 57 – 60 )

- Peritrematal shield fused with exopodal shield near coxa IV.............................. Euryparasitus View in CoL ( Figs 65–68 View FIGURES 65 – 72. 65 – 68 )

19. Peritrematal and ventrianal shields fused.................................................. Periseius View in CoL ( Figs 69–72 View FIGURES 65 – 72. 65 – 68 )

- Peritrematal and ventrianal shields not fused............................................................... 20

20. Opisthonotal section of dorsal shield with 12 pairs of setae................................ Solugamasus View in CoL ( Figs 73–76 View FIGURES 73 – 80. 73 – 76 )

- Opisthonotal section of dorsal shield with more than 12 pairs of setae........................................... 21

21. With two or three pairs of presternal plates............................................... Gamasellus View in CoL ( Figs 77–80 View FIGURES 73 – 80. 73 – 76 )

- With five pairs of presternal plates.................................................... Litogamasus View in CoL ( Figs 81–84 View FIGURES 81 – 88. 81 – 84 )

22. Line of fusion between podonotal and opisthonotal shields distinctly visible, straight or U-shaped.................... 23

- Line of fusion between podonotal and opisthonotal shields indistinct or absent.................................... 24

23. Line of fusion between podonotal and opisthonotal shields straight; peritrematal shield and exopodal shield near coxa IV not fused........................................................................ Gamasellevans View in CoL ( Figs 85–88 View FIGURES 81 – 88. 81 – 84 )

- Line of fusion between podonotal and opisthonotal shields U-shaped; peritrematal shield and exopodal shield near coxa IV fused.............................................................................. Rykellus View in CoL ( Figs 89–92 View FIGURES 89 – 96. 89 – 92 )

24. Dorsal shield fused with ventrianal shield................................................................ 25

- Dorsal shield not fused with ventrianal shield.............................................................. 34

25. Opisthogaster with incisions behind coxa IV directed almost transversely; dorsal shield setae fine, smooth and pointed except j 1 aciculate, z 4, z 5 and r 3 distally pilose................................................... Pyriphis View in CoL ( Figs 93–96 View FIGURES 89 – 96. 89 – 92 )

- Opisthogaster with incisions behind coxa IV directed strongly posteriorly, if transversely then most dorsal shield setae acicu- late or pilose....................................................................................... 26

26. Dorsal shield with 50 or more pairs of setae............................................... Caliphis View in CoL ( Figs 97–100 View FIGURES 97 – 104. 97 – 100 )

- Dorsal shield with 45 or fewer pairs of setae.............................................................. 27

27. Sternal shield fused with endopodal shield near coxa IV..................................................... 28

- Sternal shield not fused or fused only by a narrow strip to endopodal shield near coxa IV.......................... 30

28. Exopodal shields near coxae II–III–III fused; with 0–3 pairs of presternal plates.............. Gamasiphis View in CoL ( Figs 101–104 View FIGURES 97 – 104. 97 – 100 )

- Exopodal shields near coxae II–III–III divided at median level of coxa III; with one pair of presternal plates........... 29

29. Dorsal and ventrianal shields with some pilose setae....................................... Cymiphis View in CoL ( Figs 105–108 View FIGURES 105 – 112. 105 – 108 )

- Dorsal and ventrianal shields with all setae smooth..................................... Heydeniella View in CoL ( Figs 109–112 View FIGURES 105 – 112. 105 – 108 )

30. Peritrematal shield fused with exopodal shield near coxa IV.................................................. 31

- Peritrematal shield not fused with exopodal shield near coxa IV............................................... 33

31. With one pair of presternal plates................................................... Ologamasus View in CoL ( Figs 113–116 View FIGURES 113 – 120. 113 – 116 )

- With two pairs of presternal plates....................................................................... 32

32. Setae st 1– st 4 in longitudinal line or st 4 slightly laterad to imaginary line between st 1– st 3; tibia IV with nine setae..................................................................................... Hydrogamasus View in CoL ( Figs 117–120 View FIGURES 113 – 120. 113 – 116 )

- Seta st 3 mediad to imaginary line between st 1, st 2 and st 4; tibia IV with ten setae.... .. Gamasiphoides View in CoL (part) ( Figs 121–124 View FIGURES 121 – 128. 121 – 124 )

33. With two pairs of presternal plates; peritreme extending anteriorly to region of coxa I......... Laelaptiella View in CoL ( Figs 125–128 View FIGURES 121 – 128. 121 – 124 )

- With one pair of presternal plates; peritreme extending anteriorly to median region of coxa II.... Stylochirus View in CoL ( Figs 129–131 View FIGURES 129 – 135. 129 – 131 )

34. Outer margin of peritreme crenated............................................... Antennolaelaps View in CoL ( Figs 132–135 View FIGURES 129 – 135. 129 – 131 )

- Outer margin of peritreme straight...................................................................... 35

35. Leg II greatly enlarged, tarsus and tibia II with cuticular apophyses and with some setae very heavy, thickened and spur-like............................................................................. Pachymasiphis View in CoL ( Figs 136–139 View FIGURES 136 – 143. 136 – 139 )

- Leg II not greatly enlarged, tarsus and tibia II without very heavy, thickened and spur-like setae...................... 36

36. Genu I with 12 setae (two ventral setae)............................................ Gamasellopsis View in CoL ( Figs 140–143 View FIGURES 136 – 143. 136 – 139 )

- Genu I with 13 setae (three ventral setae)................................................................. 37

37. Peritrematal shield not fused with exopodal shield.......................................................... 38

- Peritrematal shield fused with exopodal shield............................................................. 41

38. Sternal shield not fused with endopodal shield near coxa IV; epistome with a club-shaped anterocentral extension................................................................................... Neogamasellevans View in CoL ( Figs 144–147 View FIGURES 144 – 151. 144 – 147 )

- Sternal shield fused with endopodal shield near coxa IV shield; epistome without a club-shaped anterocentral extension... 39

39. Pretarsus I sessile................................................................ Sessiluncus View in CoL ( Figs 156–159 View FIGURES 152 – 159. 152 – 155 )

- Pretarsus I pedunculate............................................................................... 40

40. Genu III with nine setae (two ventral setae) and genu IV with ten setae (five dorsal and two ventral setae)............................................................................................ Onchogamasus View in CoL ( Figs 148–151 View FIGURES 144 – 151. 144 – 147 )

- Genu III with eight setae (one ventral seta) and genu IV with eight or nine setae (four or five dorsal and one ventral setae)................................................................................... Gamasitus View in CoL ( Figs 152–155 View FIGURES 152 – 159. 152 – 155 )

41. With two pairs of presternal plates........................................... Gamasiphoides View in CoL (part) ( Figs 160–163 View FIGURES 160 – 167. 160 – 163 )

- With one pair of presternal plates, partially fused or not fused to sternal shield................................... 42

42. Sternal shield fused with endopodal shield near coxa IV......................... Queenslandolaelaps View in CoL ( Figs 164–167 View FIGURES 160 – 167. 160 – 163 )

- Sternal shield not fused with endopodal shield near coxa IV.................................................. 43

43. Epistome with a club-shaped anteromedian extension; connection between peritrematal and exopodal shields behind stigma narrower than peritreme..................................................... Geogamasus View in CoL (part) ( Figs 168–171 View FIGURES 168 – 175. 168 – 171 )

- Epistome without a club-shaped anteromedian extension; connection between peritrematal and exopodal shields behind stigma wider or narrower than peritreme....................................................................... 44

44. Pretarsus I not pedunculate and subequal to other pretarsi............................... Parasitiphis View in CoL ( Figs 172–175 View FIGURES 168 – 175. 168 – 171 )

- Pretarsus I pedunculate and smaller than other pretarsi....................................................... 45

45. Insemination pore located on trochanter III............................................. Athiasella View in CoL ( Figs 176–179 View FIGURES 176 – 183. 176 – 179 )

- Insemination pore located on coxa III........................................... Hydrogamasellus View in CoL ( Figs 180–183 View FIGURES 176 – 183. 176 – 179 )

Figures

FIGURES 1 – 8. 1 – 4. Geogamasus bicirrus Karg, 1976 [adapted from Karg, 1976 a]. 1. Dorsal idiosoma; 2. Ventral idiosoma; 3. Epistome; 4. Lateral (antiaxial) view of chelicera. 5 – 8. Oriflammella lutulenta Halliday, 2008 [adapted from Halliday, 2008]. 5. Dorsal idiosoma; 6. Ventral idiosoma; 7. Epistome; 8. Lateral (antiaxial) view of chelicera.

FIGURES 9 – 16. 9 – 12. Euepicrius lootsi Lee, 1970 [adapted from Lee, 1970]. 9. Dorsal idiosoma; 10. Ventral idiosoma; 11. Epistome; 12. Lateral (antiaxial) view of chelicera. 13 – 16. Gamaselliphis potchefstroomensis (Ryke, 1961) [adapted from Ryke, 1961 b]. 13. Dorsal idiosoma; 14. Ventral idiosoma; 15. Epistome; 16. Lateral (antiaxial) view of chelicera.

FIGURES 17 – 24. 17 – 20. Hiniphis hinnus Lee, 1970 [adapted from Lee, 1970]. 17. Dorsal idiosoma; 18. Ventral idiosoma; 19. Epistome; 20. Lateral (antiaxial) view of chelicera. 21 – 24. Desectophis anthuriumsetis Rueda-Ramirez, Castilho & Moraes, 2013 [adapted from Rueda-Ramirez et al., 2013]. 21. Dorsal idiosoma; 22. Ventral idiosoma; 23. Epistome; 24. Lateral (antiaxial) view of chelicera.

FIGURES 25 – 32. 25 – 28. Acuphis euarcus Karg, 1998 [adapted from Karg, 1998]. 25. Dorsal idiosoma; 26. Ventral idiosoma; 27. Epistome; 28. Lateral (antiaxial) view of chelicera. 29 – 32. Pilellus rykei Hunter, 1967 [adapted from Hunter, 1967 b]. 29. Dorsal idiosoma; 30. Ventral idiosoma; 31. Epistome; 32. Lateral (antiaxial) view of chelicera.

FIGURES 33 – 40. 33 – 36. Notogamasellus vandenbergi Loots & Ryke, 1965 [adapted from Loots & Ryke, 1965]. 33. Dorsal idiosoma; 34. Ventral idiosoma; 35. Epistome; 36. Lateral (antiaxial) view of chelicera. 37 – 40. Podonotogamasellus magoebaensis (Loots & Ryke, 1965) [adapted from Loots & Ryke, 1965]. 37. Dorsal idiosoma; 38. Ventral idiosoma; 39. Epistome; 40. Lateral (antiaxial) view of chelicera.

FIGURES 41 – 48. 41 – 44. Allogamasellus aquafortensis Athias-Henriot, 1961 [adapted from Athias-Henriot, 1961 a]. 41. Dorsal idiosoma; 42. Ventral idiosoma; 43. Epistome; 44. Lateral (antiaxial) view of chelicera. 45 – 48. Heterogamasus calcarellus Lee, 1967 [adapted from Lee, 1967]. 45. Dorsal idiosoma; 46. Ventral idiosoma; 47. Epistome; 48. Lateral (antiaxial) view of chelicera.

FIGURES 49 – 56. 49 – 52. Evanssellus foliatus Ryke, 1961 a [adapted from Ryke, 1961 a]. 49. Dorsal idiosoma; 50. Ventral idiosoma; 51. Epistome; 52. Lateral (antiaxial) view of chelicera. 53 – 56. Cyrtolaelaps mucronatus (G. & R. Canestrini, 1881) [adapted from Lee, 1970]. 53. Dorsal idiosoma; 54. Ventral idiosoma; 55. Epistome; 56. Lateral (antiaxial) view of chelicera.

FIGURES 57 – 64. 57 – 60. Acugamasus cursor Lee, 1970 [adapted from Lee, 1970]. 57. Dorsal idiosoma; 58. Ventral idiosoma; 59. Epistome; 60. Lateral (antiaxial) view of chelicera. 61 – 64. Rhodacaroides calidus Karg, 1977 [adapted from Karg, 1977]. 61. Dorsal idiosoma; 62. Ventral idiosoma; 63. Epistome; 64. Lateral (antiaxial) view of chelicera.

FIGURES 65 – 72. 65 – 68. Euryparasitus emarginatus (Koch, 1839) [adapted from Lee, 1970]. 65. Dorsal idiosoma; 66. Ventral idiosoma; 67. Epistome; 68. Lateral (antiaxial) view of chelicera. 69 – 72. Periseius plumosus Karg, 1994 [adapted from Karg, 1994 a]. 69. Dorsal idiosoma; 70. Ventral idiosoma; 71. Epistome; 72. Lateral (antiaxial) view of chelicera.

FIGURES 73 – 80. 73 – 76. Solugamasus mustela Lee, 1973 [adapted from Lee, 1973]. 73. Dorsal idiosoma; 74. Ventral idiosoma; 75. Epistome; 76. Lateral (antiaxial) view of chelicera. 77 – 80. Gamasellus humosus Ishikawa, 1969 [adapted from Ishikawa, 1969]. 77. Dorsal idiosoma; 78. Ventral idiosoma; 79. Epistome; 80. Lateral (antiaxial) view of chelicera.

FIGURES 81 – 88. 81 – 84. Litogamasus setosus (Kramer, 1898) [adapted from Lee, 1970]. 81. Dorsal idiosoma; 82. Ventral idiosoma; 83. Epistome; 84. Lateral (antiaxial) view of chelicera. 85 – 88. Gamasellevans epigynialis Loots & Ryke, 1967 [adapted from Loots & Ryke, 1967 a]. 85. Dorsal idiosoma; 86. Ventral idiosoma; 87. Epistome; 88. Lateral (antiaxial) view of chelicera.

FIGURES 89 – 96. 89 – 92. Rykellus mineiroi Santos, Castilho, Silva & Moraes, 2015 [adapted from Santos et al., 2015 a]. 89. Dorsal idiosoma; 90. Ventral idiosoma; 91. Epistome; 92. Lateral (antiaxial) view of chelicera. 93 – 96. Pyriphis pyrenoides (Lee, 1966) [adapted from Lee, 1966]. 93. Dorsal idiosoma; 94. Ventral idiosoma; 95. Epistome; 96. Lateral (antiaxial) view of chelicera.

FIGURES 97 – 104. 97 – 100. Caliphis calvus Lee, 1970 [adapted from Lee, 1970]. 97. Dorsal idiosoma; 98. Ventral idiosoma; 99. Epistome; 100. Lateral (antiaxial) view of chelicera. 101 – 104. Gamisiphis salvadori Castilho, Narita & Moraes, 2012 [adapted from Castilho et al., 2012 a]. 101. Dorsal idiosoma; 102. Ventral idiosoma; 103. Epistome; 104. Lateral (antiaxial) view of chelicera.

FIGURES 105 – 112. 105 – 108. Cymiphis cymosus (Lee, 1966) [adapted from Lee, 1966]. 105. Dorsal idiosoma; 106. Ventral idiosoma; 107. Epistome; 108. Lateral (antiaxial) view of chelicera. 109 – 112. Heydeniella leei Karg, 1976 [adapted from Karg, 1976 c]. 109. Dorsal idiosoma; 110. Ventral idiosoma; 111. Epistome; 112. Lateral (antiaxial) view of chelicera.

FIGURES 113 – 120. 113 – 116. Ologamasus lucasi Santos, Castilho, Silva & Moraes, 2015 [adapted from Santos et al., 2015 b]. 113. Dorsal idiosoma; 114. Ventral idiosoma; 115. Epistome; 116. Lateral (antiaxial) view of chelicera. 117 – 120. Hydrogamasus littoralis (G & R. Canestrini, 1881) [adapted from Lee, 1970]. 117. Dorsal idiosoma; 118. Ventral idiosoma; 119. Epistome; 120. Lateral (antiaxial) view of chelicera.

FIGURES 121 – 128. 121 – 124. Gamasiphoides coniunctus Karg, 1976 [adapted from Karg, 1976 d]. 121. Dorsal idiosoma; 122. Ventral idiosoma; 123. Epistome; 124. Lateral (antiaxial) view of chelicera. 125 – 128. Laelaptiella media Karg, 1976 [adapted from Karg, 1976 d]. 125. Dorsal idiosoma; 126. Ventral idiosoma; 127. Epistome; 128. Lateral (antiaxial) view of chelicera.

FIGURES 129 – 135. 129 – 131. Stylochirus rarior (Berlese, 1916) [adapted from Lee, 1970]. 129. Dorsal idiosoma; 130. Epistome; 131. Lateral (antiaxial) view of chelicera. 132 – 135. Antennolaelaps convexus (Womersley, 1956) [adapted from Lee, 1970]. 132. Dorsal idiosoma; 133. Ventral idiosoma; 134. Epistome; 135. Lateral (antiaxial) view of chelicera.

FIGURES 136 – 143. 136 – 139. Pachymasiphis maior Karg, 1996 [adapted from Karg, 1996]. 136. Dorsal idiosoma; 137. Ventral idiosoma; 138. Epistome; 139. Lateral (antiaxial) view of chelicera. 140 – 143. Gamasellopsis curtipilus Loots & Ryke, 1966 [adapted from Loots & Ryke, 1966]. 140. Dorsal idiosoma; 141. Ventral idiosoma; 142. Epistome; 143. Lateral (antiaxial) view of chelicera.

FIGURES 144 – 151. 144 – 147. Neogamasellevans ornata Karg, 1975 [adapted from Karg, 1975]. 144. Dorsal idiosoma; 145. Ventral idiosoma; 146. Epistome; 147. Lateral (antiaxial) view of chelicera. 148 – 151. Onchogamasus heterosetae Karg, 1996 [adapted from Karg, 1996]. 148. Dorsal idiosoma; 149. Ventral idiosoma; 150. Epistome; 151. Lateral (antiaxial) view of chelicera.

FIGURES 152 – 159. 152 – 155. Gamasitus obscurus Womersley, 1956 [adapted from Womersley, 1956 b]. 152. Dorsal idiosoma; 153. Pretarsus I; 154. Epistome; 155. Lateral (antiaxial) view of chelicera. 156 – 159. Sessiluncus reticulatus Loots, 1980 [adapted from Loots, 1980]. 156. Dorsal idiosoma; 157. Ventral idiosoma; 158. Epistome; 159. Lateral (antiaxial) view of chelicera.

FIGURES 160 – 167. 160 – 163. Gamasiphoides aitkeni Lee, 1970 [adapted from Lee, 1970]. 160. Dorsal idiosoma; 161. Ventral idiosoma; 162. Epistome; 163. Lateral (antiaxial) view of chelicera. 164 – 167. Queenslandolaelaps vitzthumi Womersley, 1956 [adapted from Lee, 1970]. 164. Dorsal idiosoma; 165. Ventral idiosoma; 166. Epistome; 167. Lateral (antiaxial) view of chelicera.

FIGURES 168 – 175. 168 – 171. Geogamasus skoshi Lee, 1970 [adapted from Lee, 1970]. 168. Dorsal idiosoma; 169. Ventral idiosoma; 170. Epistome; 171. Lateral (antiaxial) view of chelicera. 172 – 175. Parasitiphis jeanneli (André, 1947) [adapted from Lee, 1970]. 172. Dorsal idiosoma; 173. Ventral idiosoma; 174. Epistome; 175. Lateral (antiaxial) view of chelicera.

FIGURES 176 – 183. 176 – 179. Athiasella dentata (Womersley, 1942) [adapted from Lee, 1970]. 176. Dorsal idiosoma; 177. Ventral idiosoma; 178. Epistome; 179. Lateral (antiaxial) view of chelicera. 180 – 183. Hydrogamasellus antarcticus (Trägårdh, 1907) [adapted from Lee, 1970]. 180. Dorsal idiosoma; 181. Ventral idiosoma; 182. Epistome; 183. Lateral (antiaxial) view of chelicera.