PLATE VIII. 



Scaphocalcmus acrocephalm, G. 0. Sars. 

 (continued.) 



Fig. 1. Anterior antenna. 



2. Posterior antenna. 



3. Mandible with palp (body viewed laterally). 



4. Same, with the body viewed from the inner face (setse of outer 



ramus of palp not fully drawn). 



5. Maxilla. 



6. Anterior maxilliped. 



7. Posterior maxilliped. 



8. Natatory leg of 4th pair. 



