T. XIIl] . CRUSTACEA CASPIA. 419 



Explanation of the Plates. 



pi. i. 



Paramysis Baeri, Czern. 



Fig. 1. Adult female, viewed from the dorsal face. 



» 2. Front part of the body, with the eyes, superior antennae (with the bases of the flagella) 

 and right antennal scale, somewhat more strongly magnified; dorsal view. 



» 3. Peduncle of the right superior antenna, with the bases of the flagella; viewed from 

 above. 



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

 the base of the flagellum ; dorsal view. 



» 5. Outer part of the scale, more strongly magnified, showing the rudimentary apical seg- 

 ment at the inner corner. 



» 6. Anterior lip, viewed from below. 



» 7. Mandibles, anterior and posterior lips in situ, ventral view. 



» 8. Mandibular palp, somewhat more strongly magnified. 



» 9. Masticatory parts of the mandibles. 



» 10. Posterior lip. 



» 11. Extremity of the tail, with the telson and the right uropod (without the marginal setse); 

 dorsal view. 



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



PI. II. 



Paramysis Baeri, Czern. 

 (Continued). 



Fig. 1. Adult male, viewed from left side. 

 » 2. Peduncle of left superior antenna in male, viewed from below, exhibiting the male 



appendage, the hairs of which have been removed in order to show the band-like 



insertion of the latter. 

 » 3. First maxilla. 

 » 4. Second maxilla. 



» 5. Maxilliped with exopodite and epipodite. 

 » 6. Gnathopod. 



» 7. Terminal joint of the latter, more highly magnified. 

 » 8. Pereiopod of 2nd pair. 

 » 9. One of the outer sexual appendages of male. 

 » 10. Third pleopod of male. 

 » 11. Fourth pleopod of male. 



» 12. Inner lamella of left uropod (without the marginal setse). 

 » 13. Telson viewed from the dorsal face. 

 » 14. Tip of telson of another specimen, with only 3 dentiform projections at the bottom 



of the apical incision. 



PI. III. 



Mesomysis TJUskyi, (Czern.). 



Fig. 1. Adult female, dorsal view. 

 » 2. Peduncle of right superior antenna, with the bases of the flagella, viewed from 



above. 

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



base of the flagellum, dorsal view. 



Bulletin N. S. 1Y (XXXVI) p. 71. 



