72 G. 0. SAKS, [n. S. IV 



Fig. 4. Extremity of the scale, more highly magnified. 



» 5. Eight mandible with palp. 



» 6. Masticatory part of left mandible, 



w 7. First maxilla. 



» 8. Second maxilla. 



« 9. Maxilliped with exopodite and epipodite. 



B 10. Gnathopod. 



a U. Pereiopod of 2ud pair. 



» 12. Extremity of the latter, more highly maguiiied, showing the structure of the dac- 



tylar joint. 



» 13. Inner lamella of right uropod (without the marginal set*). 



» 14. Telson, viewed from the dorsal face. 



» 15. Tip of the telson, more highly magnified. 



PI. IV. 



3Ieso>nysis Kowaleishyi, Czern. 

 Fig. 1. Adult female, dorsal view. 

 » 2. Front part of the body, with the eyes and antenna?, dorsal face. 

 « 3. Basal part of left inferior antenna, with the scale (without the marginal setse) and the 



base of the flagellum, dorsal view. 

 » 4. Extremity of the scale, more highly magnified. 

 » 5. Second maxilla. 

 » 6. Pereiopod of 2nd pair. 

 » 7. Telson, viewed from the dorsal face, 

 a 8. Inner lamella of left uropod (without the marginal setre). 

 » 9. Extremity of the telson more highly magnified. 

 » 10. Outer part of the tail of an adult male, viewed from left side, exhibiting the pleopoda 



and caudal appendages. 

 « 11. Third pleopod of male. 

 M 12. Fourth pleopod of same. 



PI. V. 

 Mesomysis Czerniavalnji, G. 0. Sars. 



Fig. 1. Adult female, dorsal view. 

 » 2. Front part of the body, with the eyes and antenna?; dorsal view. 

 » 3. Basal part of left inferior antenna, with the scale (without the marginal setae) and 



the base of the flagellum. 

 » 4. Extremity of the scale, more highly magnified. 

 » 5. Second maxilla, 

 w 6. Pereiopod of 2ud pair. 



» 7. Extremity of ihe latter, more highly magnified. 

 » 8. Telson, viewed from the dorsal face. 

 » 9. Extremity of the latter, more highly magnified. 

 » 10. Inner lamella of left uropod (without the marginal set:e). 

 » 11. Male appendage of the superior anteun;e. 

 M 12. Third pleopod of male. 

 » 13. Fourth pleopod of male. 



PI. VI. 

 Mesomysis intermedia, Czern. 



Fig. 1. Adult female dorsal view. 

 » 2. Front part of the body, with the eyes and antenna; dorsal view. 



» 3. Basal part of left inferior antenna, with the scale (without the marginal setw) and 

 the base of the flagellum. 



Melanges biulngiqnus. T. XIII, p. 420. 



