PLATE IX. 
Page. 
Fig. 1. Udonorhi/nchus gigns, sp. nov. ; tisli, wanting dor.sal and pectoral tins, lateral 
aspect ; six-sevenths nat. size ... ... ... ... ... ... 23 
Fig. 2. Ditto ; abdominal and caudal region. 
Figs. 3, 4. Belonoi'hijnohus gracilis, s}). nov. ; portions of abdominal and caudal regions ... 
27 
