PATAGONIAN EXPEDITIONS : PALEONTOLOGY. 



EXPLANATION OF PLATE XIX. 



PAGE 



Fig. I. CocHLOPS MURiCATUS: Right side of carapace, X i^^ (No. 16,000) . . 141 

 Fig. 2. '' '' Tail-sheath, lacking first ring, X }4 



(Ameghino collection) . . . . .142 



Fig. 3. CocHLOPS MURICATUS : Tuberculated plate fi-om pelvic region of carapace 



seen from the side, natural size (Ameghino collection) . . .142 



(vol. v) 



