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

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mediately recognisable by the highly textured dorsal surface, heavily ‘spined’ pleotelson and uropods, the subtruncate pleotelson posterior margin with a welldefined median point, the pleotelson with a prominent longitudinal ridge, the antennule peduncle articles being flattened and expanded, the huge eyes which appear to be medially united and the characteristic shape of the frontal lamina. Juvenile specimens are not as nodular, and can be identified by the characteristic shape of the frontal lamina, and the shape, ornamentation and setation of the pleotelson and uropodal rami. The ovigerous female is slightly wider in body shape, and the prominent robust setae are missing from the margins of the pleotelson and uropods; the frontal lamina is the same as in the male, and the appendages are otherwise similar. Although the distribution is vast, there is no doubt that all the material identified here is the one species, and furthermore such a distribution is not unique (e.g. Metacirolana caeca (Hansen, 9 6), see Svavarsson & Bruce 2000), possible influenced by the Great Global Conveyer currents (e.g. see Manighetti 200 ). A rather similar Aega sp. collected east of Heron Island, Queensland (NTM, unregistered, see p. 244) can be distinguished by the far smaller antennule peduncle articles 1 and 2, flat frontal lamina, more anteriorly rounded head, more and larger robust setae on pereopods –3, lack of large robust setae on the pleotelson and uropods, more rounded uropodal exopod, and by the different nature of the robust pitting on the pereon and pleotelson. prey: There are no recent prey identifications. Gadus morrhua and Scymnum microcephalum (= Scymno microcephalo), Somniosus microcephalus (= Greenland shark, Dalatiidae) (Schioedte & Meinert 879b); Centrophorus squamosus (gulper shark, Centrophoridae) (Kussakin 979); Hyperoglyphe antarctica [bluenose and matiri (New Zealand) or Antarctic butterfish, Centro- lophidae]. distribution: North Atlantic, South Africa and southwestern Pacific. Localities: Schioedte and Meinert ( 879b) cite Iceland, Bergen, Floroe, Lodshagen and Farsun (all Norway), German Sea (= German Bight?) and Herne, Skagerak. South Africa (Barnard, 9 4); Bahamas (Treat 980); Hansen ( 9 6) cites the Færoe Islands and Jutland (Denmark) as regional records; Moray Firth and Shetland, Scotland (Norman 904). Present material is from the Chatham Rise, New Zealand, New Caledonia and from southeastern Australia off the mid- and southern New South Wales coast. Previously recorded at depths of 460–730 m, present material at depths between 440 and 022 metres. 44 Aega semicarinata Miers, 875 (Figs 9–22) Æga semicarinata Miers, 1875: 115.– 1879: 201, pl. 11, figs. 1–1d.– Dollfus, 1891: 57, pl. 8, figs 2–2a.– Bouvier, 1911: 39, pl. 2, fig. 1. Aega semicarinata.– Barnard, 9 6: 06.– Nierstrasz, 93 : 83.– Hale, 937: 9.– Barnard, 940: 40 .– Stephensen, 1947: 23.– Menzies, 1962: 118, fig. 38A–C.– Moreira & Sadowsky, 1979: 109.– Kensley, 1978: 57, fig. 24I–J; 980b: 59; 200 : 227.– Kussakin & Vasina, 982: 264.– Branch, Griffiths, Kensley & Sieg, 1991: 26.– Bruce, Lew Ton & Poore, 2002: 62. Æga semicarinatus.– Stebbing, 920: 334. Aega bicavata Nordenstam, 1930, 547, fig. 11, Pl. 20, fig. 11. Aega (Aega) bicavata.– Brusca, 983: 0. Aega (Aega) semicarinata.– Brusca, 983: . type LoCaLity: Kerguelen, southern Indian Ocean (Miers 875). types: At the then British Museum of Natural History, London, according to Miers ( 875). Not listed by Ellis ( 98 ), though one unregistered specimen, labelled as ‘type’ is held at The Natural History Museum, London. The type information states: ‘outside label destroyed at Godstone’ and the only other data is ‘HMS Sylvia’. materiaL examined: Holotype(?), ♀ (non-ovig 27 mm), ‘outside label destroyed at Godstone’, HMS Sylvia (BMNH). New Zealand material: ♀ (74 mm ovig, previously dissected), I685, vicinity of Bounty Plateau, 48° 9.50– 7.20’S, 79°29.50–40’W, 6 March 979, dredged, 722 m and ♂ (35 mm), stn Z3, labels in tube: “Z3, 40F, A, 8/63”; “?John Graham, Oamaru, “♂ of giant I685”; therefore presumably same data as I685 (NIWA 2377 ♀, 23772 ♂). ♂ (38 mm), Chatham Rise, 42°43.95’S, 79°53.9 ’W, 8 April 200 , 076–990 m, coll. S. O’Shea on RV Tangaroa (NIWA 23773). ♂ (3 mm), Chatham Rise, 43°49.605’S, 78°29.284’E, 6 October 200 , 454 m, Agassiz trawl, coll. RV Tangaroa (NIWA 23774). ♂ (3 mm), North Otago, 27.5 m, 962, coll. John Graham (NMNZ Cr. 20 6). ♀ (~4–5 cm, ovig, broken, two pieces), 44°4 .35’S, 72°34.0’E, 390–360 m, RV James Cook (NMNZ Cr.4969). Additional material: ♀ (63 mm, non-ovig), Juan Fernandez Islands, Chile, 920, A 463 (LACM 20- 2. ). 2♀ (44, 38 mm), off Table Bay, South Africa (BMNH 93 . . 0. 8-20, part). ♂ (39 mm), Chatham Rise, 42.7 60–7 08°S, 80.0390–0297°E, 28 May 2006, 935– 2 0 m, coll. RV Tangaroa (NIWA 25658). desCription: Body 2.6 times as long as greatest width, dorsal surfaces punctate, widest at pereonite 6, lateral margins subparallel. Rostral point projecting anteriorly, not ventrally folded. Eyes large, not medially united, separated by about 9% width of head; each eye made up of ~36 transverse rows of ommatidia,
Figure 19. Aega semicarinata Miers, 875. NIWA 23773. A, dorsal view; B, lateral view; C, head; D, frons; E, pleotelson posterior margin; F, penial openings; G, antenna; H, antennule; I, antenna peduncle, dorsal view. each row with ~ 8 ommatidia; eye colour dark brown. Pereonite 1 and coxae 2–3 each with posteroventral angle rounded. Coxae 5–7 with entire oblique carina (raised, forming distinct ridge); posterior margins convex, posterolateral angle blunt (more than 45°). Pleon with pleonite visible in dorsal view; pleonite 4 with posterolateral margins extending to but not beyond posterior margin of pleonite 5; pleonite 5 with posterolateral 45 angles overlapped by lateral margins of pleonite 4. Pleotelson 0.7 times as long as anterior width, dorsal surface with 2 sub-median depressions (and posterior median depression); lateral margins straight, crenulate, posterior margin emarginate, with 0 RS. Antennule peduncle article 2 anterodistal lobe not extending beyond mid-point of article 3; articles 3 and 4 0.4 times as long as combined lengths of articles
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 and 32: Figure 10. Aega falklandica Kussaki
Page 33 and 34: Figure 11. 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 41 and 42: Figure 16. Aega monophthalma Johnst
Page 43: Figure 18. Aega monophthalma Johnst
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.
Page 91 and 92: Figure 48. Aegiochus bertrandi sp.
Page 93 and 94: Aegiochus coroo (Bruce, 983), comb.
Page 95 and 96:
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
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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.
Page 145 and 146:
Figure 87. Aegiochus riwha sp. nov.
Page 147 and 148:
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-
Page 165 and 166:
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
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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
Page 179 and 180:
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
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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.
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Figure 131. Syscenus kapoo sp. nov.
Page 203 and 204:
Figure 132. Syscenus latus Richards
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Figure 134. Syscenus latus Richards
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Figure 135. Syscenus moana Bruce, 2
Page 209 and 210:
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
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KUSSAKIN, O.G.; VASINA, G.S. 982: A
Page 229 and 230:
ROHDE, K. 2005: Marine Parasitology
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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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