THE VOYAGE OF H.M.S CHALLENGER, 
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Subfamily 2. Eumedoninjs, Miers. 
Challenger Genus — 
Ceratocarcinus, Adams and White. 
CYCLOMETOPA or CANCROIDEA. 
QydomUopes, Milne Edwards (pt.). 
Cancroidea, Dana (pt. ). 
Cyclometopa, Miers, Cat. New Zealand Crust. 
Legion I. CANCRINEA, Dana. 
Family I. Canceid*. 
Cancridse et Eriphidse, Dana. 
Canciriens, Milne Edwards and A. Milne Edwards. 
Section I. Cancrinee. 
Canctriens arquis, Milne Edwards. 
Canceriens quadrilat&res, Milne Edwards (pt. ). 
Challenger Genera — 
Cancer , Lamarck. 
Carpilius, Desmarest. 
Atergatis, de Haan. 
Lophadxa, A. Milne Edwards. 
Lopliozozymus, A. Milne Edwards. 
Medeeus, Dana. 
Act sea, de Haan. 
Atergatopsis , A. Milne Edwards. 
Xantho, Leach. 
Xanthodes, Dana. 
Panopeus, Milne Edwards. 
Eriphia, 
Micropanope, Stimpson. 
Etisus, Milne Edwards (pt.). 
Carpilodes, Dana. 
Zozymus, Leach. 
Adxodes, Dana. 
Leptodms, A. Milne Edwards. 
Pliymodius, A. Milne Edwards. 
Eurytium, Stimpson. 
Pseudozius, Dana (subgenus Euryozius, nov.). 
Sphserozius, Stimpson. 
Pilumnus, Leach. 
Latreille. 
Section II. Trapeziinse. 
Trapizidcs, A. Milne Edwards. 
Challenger Genus — 
Trapezia , Latreille. 
