The Marine Fauna of New Zealand: Isopoda, Aegidae (Crustacea)
The Marine Fauna of New Zealand: Isopoda, Aegidae (Crustacea)
The Marine Fauna of New Zealand: Isopoda, Aegidae (Crustacea)
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Figure 25. Aega stevelowei sp. nov. Holotype. A–E, pereopods , 2 and 7 respectively; D, distomesial margin, pereopod 7<br />
carpus.<br />
carpus similar in size to that <strong>of</strong> pereopod , inferodistal<br />
angle with RS, propodus without large club-shaped<br />
distal RS. Pereopod 3 similar to pereopod 2; propodus<br />
without large club-shaped distal RS. Pereopods<br />
5–7 inferior margins <strong>of</strong> ischium–carpus with short RS.<br />
Pereopod 6 similar to pereopod 7. Pereopod 7 basis 3.3<br />
times as long as greatest width, inferior margins with<br />
3 palmate setae; ischium 0.5 as long as basis, inferior<br />
margin with 4 RS (set as , and 2, plus submarginal),<br />
superior distal angle with 6 RS, inferior distal angle<br />
with 8 RS; merus .3 as long as ischium, 3.5 times as<br />
long as wide, inferior margin with 4 RS (set as and 3),<br />
superior distal angle with 4 RS, inferior distal angle<br />
with 5 RS; carpus .0 as long as ischium, 3.7 times as<br />
long as wide, inferior margin with 4 RS (set as and<br />
3), superior distal angle with 9 RS, inferior distal angle<br />
with RS; propodus 0.6 as long as ischium, 3.7 times<br />
as long as wide, inferior margin with 4 RS (set as ,<br />
53<br />
and 2), superior distal angle with 4 slender setae (<br />
distally plumose), inferior distal angle with 3 RS.<br />
Pleopod 1 exopod .6 times as long as wide, distally<br />
broadly rounded, lateral margin weakly concave, mesial<br />
margin strongly convex, with PMS on distal half;<br />
endopod 2. times as long as wide, distally subtruncate,<br />
lateral margin straight, with PMS on distal margin only,<br />
mesial margin with PMS on distal half; peduncle .5<br />
times as wide as long, mesial margin with 0 coupling<br />
hooks. Exopods <strong>of</strong> pleopods –3 each with distolateral<br />
margin not digitate; endopods <strong>of</strong> pleopods 3–5 each<br />
with distolateral point; pleopods 2–4 peduncle distolateral<br />
margin without prominent acute RS.<br />
Uropod peduncle ventrolateral margin with 0 RS,<br />
posterior lobe about three-quarters as long as endopod.<br />
Uropod rami extending to pleotelson apex, marginal<br />
setae in two or three tiers, apices acute. Endopod apically<br />
deeply bifid, lateral process prominent (apex with
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