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

More documents

Recommendations

Info

G Figure 122. Rocinela resima sp. nov. Paratype NIWA 23884. A–C, pleopods –3, respectively; D, holotype, uropod; E, holotype, uropodal endopod, ventral view; F, uropod, female paratype NIWA 23887; G, uropod endopod apex, female paratype NIWA 23885. femaLe: Non-ovigerous specimens similar to the male but: body more elongate (2.5 times as long as wide), rostrum shorter, anteriorly narrowly rounded; all females and specimens of indeterminate sex with uropod exopod extending to just short of endopod apex; marginal setae less dense. Pereopods –3 palm with 2 large and small RS or 3 RS of approximately equal size (as in males); dactylus longer ( .4– .7 times 88 as long as propodus) than in males ( . times as long as propodus); eyes larger, separated by 6% width of head; maxillule RS more slender than in mature male; maxilliped lacking mesial plumose setae, with more strongly hooked RS on palp articles and 2. size: Males 20–29 mm; female 34 mm.
Variation: Based on the four type specimens. Robust setae: Pleotelson RS 4– 7. Uropod exopod mesial margin with 0 (all); lateral margin 0– 2. Uropod endopod mesial margin varied from 2–4; lateral margin (n = 0) with 5–8. The setation of the pereopod palm is consistent with 3 robust setae on pereopods –3; variation occurs in the distal robust seta on the palm which in the mature males is equal in size to the other robust setae, but in the immature male and some of the females it is less than half the size of the other robust setae (this can vary within the individual). The robust setae on the inferior margin of the merus were consistently +2. remarks: Rocinela resima sp. nov. can be identified by the ovate body shape, strongly produced and upturned rostrum, relatively widely separated eyes, pereopods –3 with three robust setae on a small, rounded propodal blade, and relatively narrow uropodal rami with posteriorly rounded uropodal endopod. Males have upturned and truncate rostrum, and relatively short and robust dactyli on pereopods –3. In New Zealand waters Rocinela bonita sp. nov. is the most similar species. R. resima can be distinguished from that species by a number of characters including pereopods –3 having a less produced and more rounded propodal blade with three robust setae (v. sub-rectangular with four robust setae in R. bonita), shorter and more robust dactylus in mature males ( .0 times as long as propodus v. 2.0 times as long as propodus in R. bonita), shorter and more stout robust setae on the merus, shorter robust setae on the inferior margins of pereopod 7, and the uropodal endopod with an evenly convex lateral margin and smoothly rounded distal margin (v. sinuate lateral margin, apex with distinct apical point), and a narrower uropodal exopod (3.0 times as long as wide v. 2.4 times as long as wide in R. bonita). There are two northern Pacific species, both showing some similarity to Rocinela resima sp. nov. Rocinela hawaiiensis Richardson, 903 is known from only two specimens (from Hawai’i and Pacific Mexico) and the adult male has not been described (Brusca & France 992). The female of R. resima differs in having the distalmost robust seta on the propodal palm of pereopods –3 small, whereas in R. hawaiiensis all three robust setae are of equal length, and the pleotelson posterior margin of R. resima has a distinct median point while in R. hawaiiensis it is evenly rounded (Brusca & France 992). The other similar species is Rocinela cornuta Richardson, 898, known from Alaska and Arctic waters (Kussakin 1979; Rafi 1985), a poorly known species for which few descriptive data are available. While the anterior margin of the head is similarly produced in mature males of both species, R. resima lacks the anterolateral projections on pereonite and has only three robust setae on the propodal palm of pereopods –3 rather than the four in R. cornuta; in addition Richardson (1898) figured the uropods of R. cornuta as extending well beyond the posterior margin of the pleotelson, whereas in R. resima the uropods reach only to that margin. Kussakin (1979) gave additional figures for the species, which correspond to neither those of Richardson ( 898) nor any other species. 89 prey: Not known. distribution: All records from off southeastern South Island in the region of the Chatham Rise and south to Christabel Sea Mount on the northern Macquarie Ridge; at depths of 870– 076 m. etymoLogy: Adapted from the Latin resimus (turnedup nose; simus = pug-nosed) and alluding to the prominent, somewhat upturned rostrum in the adult males. Rocinela runga sp. nov. (Figs 23– 25) materiaL examined: Holotype, ♀ (35 mm, non-ovig.), 49°38. 0–04’S, 78°47.5 –26’E, off Antipodes Islands, 23 April 2003, 03– 08 m (NIWA 23845). desCription: Body 2.0 times as long as greatest width, dorsal surfaces smooth and sparsely punctate, widest at pereonite 5, lateral margins weakly ovate. Rostrum simple, anteriorly rounded. Eyes not medially united, separated by about 40% width of head; each eye made up of ~ 2 transverse rows of ommatidia, each row with ~9 ommatidia; eye colour dark brown. Pereonite 1 and coxae 2–3 each with posteroventral angle rounded; coxae 5–7 with incomplete oblique carina (weak). Pleon with pleonite largely concealed by pereonite 7; pleonite 4 with posterolateral margins extending to, but not beyond, posterior margin of pleonite 5; pleonite 5 with posterolateral angles acute. Pleotelson . times as long as anterior width, anterior dorsal surface with 2 sub-median depressions, dorsal surface with short setae; lateral margins weakly convex, posterior margin narrowly rounded, with 6– 8 RS (many missing). Antennule peduncle article 3 0.8 times as long as combined lengths of articles and 2 (in situ), 3.5 times as long as wide; flagellum with 6 articles, extending to anterior of pereonite . Antenna peduncle article 3 2.8 times as long as article 2, .3 times as long as wide; article 4 .5 times as long as article 3, .9 times as long as wide, inferior margin with 0 plumose setae, and simple setae; article 5 .3 times as long as article 4, 3.2 times as long as wide, inferior margin with 4 setae (minute, widely spaced), anterodistal angle with cluster of 2 short simple setae (and 2 plumose setae); extending to posterior of pereonite 2.
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:
Page 43 and 44:
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.
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,
Page 97 and 98:
size: Males 8.5- 3.0 mm (mean = .4,
Page 99 and 100:
Figure 53. Aegiochus gordoni sp. no
Page 101 and 102:
Figure 55. Aegiochus gordoni sp. no
Page 103 and 104:
New figures of the holotypes of Aeg
Page 105 and 106:
Figure 57. Aegiochus insomnis sp. n
Page 107 and 108:
Figure 59. Aegiochus insomnis sp. n
Page 109 and 110:
distribution: Known only from the P
Page 111 and 112:
Figure 62. Aegiochus kakai sp. nov.
Page 113 and 114:
Figure 64. Aegiochus kakai sp. nov.
Page 115 and 116:
Figure 65. Aegiochus kanohi sp. nov
Page 117 and 118:
Figure 67. Aegiochus kanohi sp. nov
Page 119 and 120:
of ischium-carpus with short RS. Pe
Page 121 and 122:
Figure 69. Aegiochus laevis (Studer
Page 123 and 124:
southwestern or western Pacific; re
Page 125 and 126:
Figure 72. Aegiochus nohinohi sp. n
Page 127 and 128:
Figure 74. Aegiochus nohinohi sp. n
Page 129 and 130:
33°47-44’S, 5 °59’- 52°0 ’
Page 131 and 132:
Figure 76. Aegiochus piihuka sp. no
Page 133 and 134:
Figure 78. Aegiochus piihuka sp. no
Page 135 and 136:
Figure 79. Aegiochus pushkini (Kuss
Page 137 and 138: Figure 81. Aegiochus pushkini (Kuss
Page 139 and 140: Figure 83. Aegiochus pushkini (Kuss
Page 141 and 142: Aegiochus riwha sp. nov. (Figs 84-8
Page 143 and 144: 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.
Page 149 and 150: Figure 90. Aegiochus tara sp. nov.
Page 151 and 152: uropods, and the elongate and flat
Page 153 and 154: Figure 92. Epulaega derkoma sp. nov
Page 155 and 156: Figure 94. Epulaega derkoma sp. nov
Page 157 and 158: Figure 96. Epulaega fracta (Hale, 9
Page 159 and 160: Figure 98. Epulaega fracta (Hale, 9
Page 161 and 162: as long as wide, inferior margin wi
Page 163 and 164: Rocinela bonita sp. nov. (Figs 00-
Page 165 and 166: Figure 101. Rocinela bonita sp. nov
Page 167 and 168: Figure 103. Rocinela bonita sp. nov
Page 169 and 170: 3, more strongly produced uropod pe
Page 171 and 172: Figure 106. Rocinela garricki Hurle
Page 173 and 174: Figure 108. Rocinela garricki Hurle
Page 175 and 176: Figure 110. Rocinela leptopus sp. n
Page 177 and 178: Figure 112. Rocinela leptopus sp. n
Page 179 and 180: Figure 114. Rocinela pakari sp. nov
Page 185 and 186: Figure 119. Rocinela resima sp. nov
Page 187: Figure 121. Rocinela resima sp. nov
Page 191 and 192: Figure 124. Rocinela runga sp. nov.
Page 193 and 194: 3, and uropodal rami that are relat
Page 195 and 196: Figure 127. Rocinela satagia sp. no
Page 197 and 198: Figure 129. Rocinela satagia sp. no
Page 199 and 200: genus Aega (e.g. A. falklandica, A.
Page 201 and 202: Figure 131. Syscenus kapoo sp. nov.
Page 203 and 204: Figure 132. Syscenus latus Richards
Page 205 and 206: Figure 134. Syscenus latus Richards
Page 207 and 208: Figure 135. Syscenus moana Bruce, 2
Page 209 and 210: Figure 136. Syscenus springthorpei
Page 211 and 212: evision of the species based on goo
Page 213 and 214: a nomen nudum in a footnote, by Kr
Page 215 and 216: Rocinela insularis Schioedte & Mein
Page 217 and 218: Figure 137. Aegiochus antarctica (H
Page 219 and 220: flattened antennule peduncle articl
Page 221 and 222: 0 acute RS (2 simple setae); carpus
Page 223 and 224: AMAR, R.; ROMAN, M.-L. 974: Invert
Page 225 and 226: 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
Page 233 and 234: Figure 139. Aega angustata Whiteleg
Page 235 and 236: of the uropodal exopod lacking serr
Page 237 and 238: present this record can only be con
Page 239 and 240:
Figure 143. Aegiochus plebeia (Hans
Page 241 and 242:
posterior margin (rather than conve
Page 243 and 244:
H Figure 146. Syscenus intermedius
Page 245 and 246:
Aegiochus aff. tara: ♀ (ovig. 27
Page 247 and 248:
magnifica 1122112411 2213124211 131
Page 249 and 250:
Aega, 7, 0, 2, 3, 4, 5, 27, 98 Aega
Page 251 and 252:
Greenland, 2 2, 2 3, 2 5 Greenland
show all

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

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?