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

More documents

Recommendations

Info

with 3 RS, inferior distal angle with 6 RS; propodus 0.7 as long as ischium, 5.8 times as long as wide, inferior margin with 2 RS (set as single cluster), superior distal angle with 2 slender setae ( simple, palmate), inferior distal angle with 2 RS. Penes opening flush with surface of sternite 7; penial openings separated by 5% of sternal width. Uropod peduncle posterior lobe about one-half as long as endopod. Uropod rami with apices narrowly rounded. Endopod apically not bifid, lateral margin proximally convex, with prominent excision, positioned about four-fifths along ramus, proximal lateral margin with 2 RS, distal lateral margin with 4 RS, mesial margin strongly convex, with 3 RS. Exopod extending beyond end of endopod, 2.8 times as long as greatest width, apically not bifid; lateral margin weakly convex, with 0 RS; mesial margin sinuate, proximally concave, with 3 RS. size: Previously recorded to 58 mm, the size of the largest specimen examined here. Variation: Most specimens examined were in relatively poor condition, and the indicative range for robust setae on the pleotelson appears to be from 5+5 to 7+7. Uropod exopod (n = 9) mesial margin with 3–5, with 3 (74%) or 4 (2 %) most frequent, lateral margin with 9– 2 RS with 0 (84%) most frequent; uropod endopod mesial margin (n = 2 ) with 4 (7 %) or 5 ( 9%) most frequent (7 occurred on one specimen only), the lateral margin (n = 20) with the proximal RS at 2–4, distal RS 3 or 4, with 3+4 (52%), 2+3 ( 4%) and 3+3 most frequent (4+3, 4+4 and 2+4 all occurred once). Pereopod setation of the merus is highly consistent across its range with +2 RS (95%), 2+2 occurring only once; pereopod 2 merus with 4+2 RS (73%) or 3+2 (27%) most frequent and pereopod 3 with 4+2 (95%) most frequent (not included are NMNZ Cr.9265 and AK 84218, identified after counts were made). This is less variation, particularly for the uropodal endopod, than was recorded by Bruce (2004a) for the species across its entire range, suggesting that if good data can be obtained, consistent regional variation or cryptic species may be found to exist. remarks: Aegapheles alazon is most similar to A. birubi, the differentiating characters being that A. alazon has medially united eyes and lacks a propodal lobe on the palm of pereopods –3. Most of the NIWA specimens are in poor condition, several having dried out at some time in the past. In many of the specimens the eyes seem to have shrunk and drawn away from the cuticle, making it impossible to see if the eyes are medially united. All specimens identified here lack a significant propodal lobe on the palm of pereopods –3. 68 prey: In New Zealand — Carangidae, probably Trachurus novaezelandiae Richardson, 843 [as horse mackerel]; Serranidae [as groper]; Rexea solandri (Cuvier, 832) (Gempylidae) [as gemfish]; Triglidae [as gurnard]; and Ophidiidae, probably Genypterus blacodes (Forster, 80 ) [as ling]. distribution: Throughout New Zealand waters, extending north to New Caledonia, and northeast to Tonga. Previously recorded (Bruce 2004a) from South Africa (type locality), Tristan da Cunha, Seychelles, St Paul Is., southeastern Australia. Maximum recorded depth 550 metres. Aegapheles birubi (Bruce, 2004) comb. nov. (Fig. 35) Aega birubi Bruce, 2004: 166, figs 18–21, 63.– Poore, 2005: 7. materiaL examined: ♀ (non-ovig. 34 mm), Cook Strait, 4 February 2000, 65 m, from cheek of barracouta, coll. Pierce Black (NMNZ Cr.9949). Manca ( .5 mm), outside Wellington Harbour, 20 May 979, on pectoral fin of Polyprion oxygeneios, coll. C. Roberts (AK 4978). diagnosis (from Bruce 2004a): Eyes large, not medially united, separated by less than % width of head; eye colour pale brown. Pleonite 4 with posterolateral margins extending clearly beyond posterior margin of pleonite 5; pleonite 5 with posterolateral angles overlapped by lateral margins of pleonite 4. Pleotelson .0 as long as anterior width, dorsal surface without longitudinal carina; lateral margins convex, smooth, posterior margin with 6–8 RS. Antennule peduncle article 2 without anterodistal lobe; flagellum extending to mid-point of eye. Antenna peduncle article 2 inferior surface without distinct longitudinal suture; flagellum extending to middle of pereonite . Frontal lamina flat, as wide as long, lateral margins converging posteriorly, anterior margin rounded, with small median point, posterior margin not abutting clypeus. Pereopod 1 merus inferior margin with 3 RS, set as two groups (of and 2), superior distal angle with 2 RS (acute); carpus 0.5 as long as merus, inferior margin with 0 RS (with small lobe); propodus .4 times as long as proximal width, inferior margin with 0 RS, propodal palm with large distal lobe, dactylus smoothly curved, .7 as long as propodus. Pereopod 2 merus inferior margin with 6 RS (distal 2 on low lobe), set as single row, superior distal margin with 2 acute RS; carpus similar in size to that of pereopod , inferodistal angle with 0 RS. Pereopod 3 similar to pereopod 2. Pereopods 5–7 inferior margins of ischium–carpus with long acute RS. Pereopod 7 basis 2.8 times as long as greatest width, inferior margins with 7 palmate setae; ischium 0.6 as
Figure 35. Aegapheles birubi (Bruce, 2004). A, dorsal view; B, head, dorsal view; C, frons; D, antenna peduncle; E, antennule; F, pereopod (distal articles); G, pereopod 2 (distal articles); H, pereopod 7; I uropod. 69
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 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: Figure 34. Aegapheles alazon (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:
Page 139 and 140:
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 181 and 182:
Page 183 and 184:
Page 185 and 186:
Figure 119. Rocinela resima sp. nov
Page 187 and 188:
Figure 121. Rocinela resima sp. nov
Page 189 and 190:
Variation: Based on the four type s
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)

Create successful ePaper yourself

Delete template?

Save as template?