PLATE XXIV. 



Heterochceta compacta, G. 0. Sars. 



Fig. 1. Adult female, dorsal view. 



2. Same, viewed from left side. 



3. Rostral prominence, with the tentacular filaments, front view. 



4. Extremity of tail, with the caudal rami, dorsal view. 



5. Anterior antenna. 



6. Posterior antenna. 



7. Anterior lip. 



8. Posterior lip. 



9. Right mandible with palp. 



9a. Masticatory part of left mandible. 

 10. Maxilla. 



