PLATE LII. 



Hepomadus glacialis (p. 321). 

 Fig. 1. Lateral view of female. 

 „ I". Ventral aspect of pereion, showing the thelycum. 

 ea. Epistoma. 

 d. Siagon or mandible. 

 ma. Metastomata. 



g. Third siagnopod or first maxillipede. 

 br. Branchial plume in section. 



