HYPEB.IA. 205 



ing ploughed up, so to speak, rather than burrowed into. 

 Upon the whole, Chelura would seem to be a still more 

 destructive creature than even Liwmoria" 



Tribe HYPEEITA. 



Head very large. Mandibles large, generally ending in 

 crests rather than teeth. First pair of jaw, of three joints, 

 the two last lamellar, the thorax of six or seven joints ; some 

 of the legs prehensile and of curious form ; end of abdomen 

 adapted for swimming but not for leaping. 



The species of this tribe are more or less parasitic, some 

 of them being attached to Fishes, and others to Medusae. 



Fam. PHRONIMADJE. 



Second pair of antennae styliform, and not capable of 

 being folded on themselves. Body swollen, head very 

 large ; some of the true legs prehensile. 



Gen. 100. HYPEBIA. 

 Body wider than high, swollen above, blunt in front, 

 swollen towards the middle, and considerably narrowed be- 

 hind. Head very large, the eyes occupying its greater part. 



