TRILOBITE HUNTING. 211 



the same age so much like them. King-crabs are 

 very peculiar creatures, and seem to be connected 

 with other crustaceans in only a remote sort of way. 



IfFI 



FIG. 57. Fossil King-Crab FIG. 58.Prest?vickia. 



(Belinurus triloHti aides). 



Before leaving the egg, the embryo acquires all its 

 main features, and at that early stage shows a 

 remarkable resemblance to the Prestwichia (Fig. 58), 



FIG. 59. 



Larva of recent King-Crab. 



FIG. GO. Larva of Trilobite. 



a trilobite found in the " Penny-stone nodules " of 

 Shropshire. This resemblance may be seen by 

 comparing the larva of a recent king-crab with a 

 larval trilobite (Figs. 59, 60). A reference to Figs. 



