The Marine Fauna of New Zealand: Isopoda, Aegidae (Crustacea)

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articulating with article 4, distally convex, with 6 RS (5 straight, curved). Pereopod 1 basis .9 times as long as greatest width; ischium 0.5 times as long as basis, inferior margin with 0 RS, superior distal margin with 2 RS (and simple seta); merus inferior margin with RS (or 2), set as distal group, superior distal angle with 0 RS (2 slender setae); carpus 0.5 as long as merus, inferior margin with 0 RS; propodus .3 times as long as proximal width, inferior margin with 0 RS, propodal palm with small distal lobe, dactylus abruptly hooked, .5 as long as propodus. Pereopod 2 ischium inferior margin with RS, superior distal margin with 3 RS (and slender seta); merus inferior margin with 6 RS (set as 4 + 2), set as two groups, superior distal margin with 0 acute RS (4 slender setae); carpus longer than that of pereopod , with inferodistal lobe, inferodistal angle with 0 RS, propodus without large club-shaped distal RS. Pereopod 3 similar to pereopod 2 (7 or 9 RS); propodus without large club-shaped distal RS. Pereopods 5–7 inferior margins of ischium–carpus with short RS. Pereopod 6 similar to pereopod 7 (slightly larger, inferior margins with more RS). Pereopod 7 basis 3.3 times as long as greatest width, inferior margins with 5 palmate setae (or more); ischium 0.5 as long as basis, inferior margin with 9 RS (set as , 2, 3 and 3), superior distal angle with 6 RS, inferior distal angle with 7 RS; merus 0.8 as long as ischium, .9 times as long as wide, inferior margin with 9 RS (set as , 4 and 4), superior distal angle with 0 RS (and 2 slender setae), inferior distal angle with 8 RS; carpus 0.8 as long as ischium, 2.6 times as long as wide, inferior margin with 7 RS (set as 3 and 4), superior distal angle with 0 RS, inferior distal angle with 0 RS; propodus 0.6 as long as ischium, 3.0 as long as wide, inferior margin with 5 RS (set as , 2 and 2), superior distal angle with 2 slender setae, inferior distal angle with 3 RS. Penes low tubercles; penial openings separated by 4% of sternal width. Pleopod 1 exopod .9 times as long as wide, distally narrowly rounded, mesial margin weakly oblique, lateral margin straight, mesial margin strongly convex, with PMS on distal two-thirds; endopod 2.5 times as long as wide, distally subtruncate, lateral margin strongly concave, with PMS on distal margin only, mesial margin with PMS on distal half; peduncle .9 times as wide as long, mesial margin with 8 coupling hooks. Pleopod 2 appendix masculina with straight margins, 0.8 times as long as endopod, distally narrowly rounded (with small apical point). Exopods of pleopods –3 each with distolateral margin not digitate; endopods of pleopods 3–5 each with distolateral point; pleopods 2–4 peduncle distolateral margin without prominent acute RS. Uropod peduncle ventrolateral margin with 2 RS, posterior lobe about three-quarters as long as endo- 32 pod. Uropod rami with endopod and exopod weakly oblique, rami extending to pleotelson apex, marginal setae in single tier (dense), apices narrowly rounded. Endopod apically not bifid, lateral margin proximally convex, with prominent excision (shallow), positioned about three-quarters along ramus, proximal lateral margin with RS, distal lateral margin with 3 RS, mesial margin weakly convex, with 6 RS. Exopod not extending to end of endopod, 3.3 times as long as greatest width, apically not bifid; lateral margin weakly convex, with 2 RS; mesial margin sinuate, proximally concave, with 3 RS. femaLe: Similar to the male, but for the sexual characters; no ovigerous females present. size: Present material 3 mm. Variation: The two specimens differ in a number of details, though without more material it is impossible to say whether this is regional variation or potentially specific differences. The robust setae on the merus of pereopods –3 present a constant pattern, although the number of robust setae varied with the holotype having only RS on the pereopod merus and the New Zealand specimen having 2, the merus of pereopod 2 has 4+2 but pereopod 3 merus had 5+2 (holotype) or 6+3 (New Zealand). The shape and proportions of the uropod are the same between the two specimens but there is a difference in the number of robust setae, notably on the uropodal endopod lateral margin with the holotype having a pattern of +3, the New Zealand specimen +2. Both specimens had somewhat damaged uropods so these numbers may be an artefact of that damage. remarks: Aega falklandica can be identified by the antennule peduncle articles 1 and 2 being flattened and expanded, uropodal endopod lateral margin being medially indented with the anterior portion conspicuously convex, by the short propodus with a simple palm and small distal lobe, and by the pattern and number of robust setae on pereopods –3. Similar species include Aega magnifica which is readily separated by pereopods –3 having a conspicuous blade on the palm of the propodus. There are two similar Pacific species: Aega acuminata Hansen 897 and Aega maxima Hansen, 897. The former has far smaller eyes than A. falklandica, the propodal lobe on pereopod is larger and the uropodal exopod is proportionally longer, extending just beyond the apex of the endopod (Brusca 983; Hansen 897). The principle differences between A. falklandica and A. maxima are, in A. maxima, slightly smaller eyes, the palm of pereopods –3 without any trace of a distal lobe, and the uropodal endopod distal margin appear-
Figure 11. Aega falklandica Kussakin, 967. Eltanin specimen (USNM 099250). A–E, pleopods –5 respectively; F, pleopod peduncle mesial margin; G, uropod; H, uropod exopod, ventral view. ing distinctly truncate and with only a weak excision on the lateral margin. The only known specimen of Aega maxima was taken at a depth 2 48 metres off Cocos Island, off Pacific Panama (Hansen 1897), considerably deeper that the holotype of A. falklandica ( 0 m) or the New Zealand specimen (maximum depth of 549 m). Kensley’s records are from 85 to 270 m. 33 prey: No records. distribution: Falkland Islands, South Atlantic, Marion Island, southern Indian Ocean and off southwestern New Zealand. At depths of 0 m (Falkland Islands) otherwise 85–270 m (Marion Islands) and 549 metres (New Zealand).
Page 1 and 2: NATIONAL INSTITUTE OF WATER AND ATM
Page 3 and 4: NATIONAL INSTITUTE OF WATER AND ATM
Page 5 and 6: cONtENts ABSTRACT .................
Page 7 and 8: The isopod fauna of New Zealand has
Page 9 and 10: mAtErIAl ExAmINEd Material examined
Page 11 and 12: end on preservation, rendering appa
Page 13 and 14: Figure 3. Terms used in description
Page 15 and 16: y the fact that while some species
Page 17 and 18: Figure 4. Clades in Aega: Strict co
Page 19 and 20: parallel lateral margins (Ch 28.2)
Page 21 and 22: CharaCter List for AegA body charac
Page 23 and 24: Traditionally the Aegidae have been
Page 25 and 26: subOrdEr cymOthOIdA wägElE, 1989 B
Page 27 and 28: 3. Body dorsally compressed; fronta
Page 29 and 30: Figure 8. Aega falklandica Kussakin
Page 31: Figure 10. Aega falklandica Kussaki
Page 35 and 36: Figure 12. Aega komai Bruce, 996. N
Page 37 and 38: size: Female 26 mm, two males 6.5 a
Page 39 and 40: Figure 15. Aega monophthalma Johnst
Page 45 and 46: Figure 19. Aega semicarinata Miers,
Page 47 and 48: Figure 21. Aega semicarinata Miers,
Page 49 and 50: pod 2.2 times as long as wide, dist
Page 51 and 52: Figure 23. Aega stevelowei sp. nov.
Page 53 and 54: Figure 25. Aega stevelowei sp. nov.
Page 55 and 56: 4 teeth), lateral margin straight,
Page 57 and 58: Figure 28. Aega urotoma Barnard, 9
Page 59 and 60: Figure 30. Aega urotoma Barnard, 9
Page 61 and 62: Aega whanui sp. nov. (Figs 3 -33) m
Page 63 and 64: Figure 32. Aega whanui sp. nov. Hol
Page 65 and 66: distribution: Lord Howe Rise to the
Page 67 and 68: Figure 34. Aegapheles alazon (Bruce
Page 69 and 70: Figure 35. Aegapheles birubi (Bruce
Page 71 and 72: Figure 36. Aegapheles copidis sp. n
Page 73 and 74: Variation: The left and right uropo
Page 75 and 76: endopod. Uropod rami with apices br
Page 77 and 78: Figure 40. Aegapheles mahana sp. no
Page 79 and 80: teral margin not digitate; endopods
Page 81 and 82: tenna peduncle article 2 inferior s
Page 83 and 84:
as ischium, .8 times as long as wid
Page 85 and 86:
Aegiochus beri (Bruce, 983), comb.
Page 87 and 88:
Figure 45. Aegiochus beri (Bruce, 1
Page 89 and 90:
Figure 46. Aegiochus bertrandi sp.
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Figure 48. Aegiochus bertrandi sp.
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Aegiochus coroo (Bruce, 983), comb.
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Figure 50. Aegiochus coroo (Bruce,
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size: Males 8.5- 3.0 mm (mean = .4,
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Figure 53. Aegiochus gordoni sp. no
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Figure 55. Aegiochus gordoni sp. no
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New figures of the holotypes of Aeg
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Figure 57. Aegiochus insomnis sp. n
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Figure 59. Aegiochus insomnis sp. n
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distribution: Known only from the P
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Figure 62. Aegiochus kakai sp. nov.
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Figure 64. Aegiochus kakai sp. nov.
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Figure 65. Aegiochus kanohi sp. nov
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Figure 67. Aegiochus kanohi sp. nov
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of ischium-carpus with short RS. Pe
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Figure 69. Aegiochus laevis (Studer
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southwestern or western Pacific; re
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Figure 72. Aegiochus nohinohi sp. n
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Figure 74. Aegiochus nohinohi sp. n
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33°47-44’S, 5 °59’- 52°0 ’
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Figure 76. Aegiochus piihuka sp. no
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Figure 78. Aegiochus piihuka sp. no
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Figure 79. Aegiochus pushkini (Kuss
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
Aegiochus riwha sp. nov. (Figs 84-8
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Figure 85. Aegiochus riwha sp. nov.
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Figure 87. Aegiochus riwha sp. nov.
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Figure 88. Aegiochus tara sp. nov.
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Figure 90. Aegiochus tara sp. nov.
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uropods, and the elongate and flat
Page 153 and 154:
Figure 92. Epulaega derkoma sp. nov
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Figure 94. Epulaega derkoma sp. nov
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Figure 96. Epulaega fracta (Hale, 9
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Figure 98. Epulaega fracta (Hale, 9
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as long as wide, inferior margin wi
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Rocinela bonita sp. nov. (Figs 00-
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Figure 101. Rocinela bonita sp. nov
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Figure 103. Rocinela bonita sp. nov
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3, more strongly produced uropod pe
Page 171 and 172:
Figure 106. Rocinela garricki Hurle
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Figure 108. Rocinela garricki Hurle
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Figure 110. Rocinela leptopus sp. n
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Figure 112. Rocinela leptopus sp. n
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Figure 114. Rocinela pakari sp. nov
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
Figure 119. Rocinela resima sp. nov
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Figure 121. Rocinela resima sp. nov
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Variation: Based on the four type s
Page 191 and 192:
Figure 124. Rocinela runga sp. nov.
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3, and uropodal rami that are relat
Page 195 and 196:
Figure 127. Rocinela satagia sp. no
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Figure 129. Rocinela satagia sp. no
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genus Aega (e.g. A. falklandica, A.
Page 201 and 202:
Figure 131. Syscenus kapoo sp. nov.
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Figure 132. Syscenus latus Richards
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Figure 134. Syscenus latus Richards
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Figure 135. Syscenus moana Bruce, 2
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Figure 136. Syscenus springthorpei
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evision of the species based on goo
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a nomen nudum in a footnote, by Kr
Page 215 and 216:
Rocinela insularis Schioedte & Mein
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Figure 137. Aegiochus antarctica (H
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flattened antennule peduncle articl
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0 acute RS (2 simple setae); carpus
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AMAR, R.; ROMAN, M.-L. 974: Invert
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DOLLFUS, A. 89 : Crustacés Isopode
Page 227 and 228:
KUSSAKIN, O.G.; VASINA, G.S. 982: A
Page 229 and 230:
ROHDE, K. 2005: Marine Parasitology
Page 231 and 232:
AppENdIx 1. INvAlId AEgId NAmEs Inc
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Figure 139. Aega angustata Whiteleg
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of the uropodal exopod lacking serr
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present this record can only be con
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Figure 143. Aegiochus plebeia (Hans
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posterior margin (rather than conve
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H Figure 146. Syscenus intermedius
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Aegiochus aff. tara: ♀ (ovig. 27
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magnifica 1122112411 2213124211 131
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Aega, 7, 0, 2, 3, 4, 5, 27, 98 Aega
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Greenland, 2 2, 2 3, 2 5 Greenland
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The Marine Fauna of New Zealand: Isopoda, Aegidae (Crustacea)

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