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Volume 83, 1955-56
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Key to New Zealand Genera of Hyperiidae

(Adapted from Bovallius, 1889, and Spandl, 1927.)

1. Gnathopod 2 has 5th segment process compressed, knife-like Hyperoche Bovallius, 1887.
Gnathopod 2 has 5th segment process gauge- or spoon-shaped 2
2. Body more or less hirsute Iulopis Bovallius. 1887
Body smooth 3
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3. Pr. 1 and 2, 5th segment narrow, not dilated 4
Pr. 1 and 2, 5th segment dilated, together with 6th forming a folding prehensile organ Parathemisto Boeck, 1870.
4. Pr. 3 not elongated, as long as Pr. 4 Hyperia Latreille, 1823.
Pr. 3 elongated, much longer than Pr. 4 Hypriella Bovallius, 1887.
Pr. 3 and 4 elongated; 5th also elongated but reaching only about ⅔ the length of the preceding peraeopods Hyperioides Chevreux, 1900.
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