CRUSTACEA MALACOSTRACA. III. 



239 



x 26. ep. epimeron. Of right antennula and antenna the proximal joints, of left antennnla 

 and antenna only the basal part of their first joint are shown. 

 Fig. 2 b. Left portion with epimeron of first thoracic segment shown in fig. 2 a, from above; x 50. 

 The seta terminating the process was lost. 



— 2 c. The three posterior thoracic segments, with the proximal parts of the legs and of the abdo- 



men, of a female without marsupium from Lat. 6i°i5' N., from above; x 23. 



Fig. 3. Dendrotion paradoxiun 11. sp. 

 Fig. 3 a. Not full-grown male, from above; x 23. Of the antennulae and antennce only the proximal 

 joints are shown. 



— 3 b. Right process of third segment of the same male, from above; x 90. 



— 3 c. Head with right antennnla and antenna of an immature female, from above; x 32. 



— 3d. Distal half of first left leg of the largest male, from behind; x 88. 



— 3 c End of abdomen of a male, from above; x 130. 



Fig. 4. Schistosoma ramosum n. gen., n. sp. 



Fig. 4a. The single specimen, a male, from above; x 40. 



— 4 b. Posterior segments of the thorax and basal part of abdomen, from above; x 53. 



— 4 c. Right antennula, from above; x 93. 



— 4d. Left mandible, from below; x 127. 



— 4 e. Left maxilliped, from below; x 127. 



— 4f. Major part of first left leg, from behind; x 93. 



— 4 g. Distal part of the same leg, from behind ; x 145. 



— 4 h. Distal part of sixth left leg, from behind; x 127. 



— ■ 4 i. Last thoracic segment and abdomen, from below ; x 80. 



Fig. 5. Ischnomesus profundus n. sp. 



Fig. 5 a. The single specimen, a male, from above ; x 2 3/ 2 . Uropods lost. 



— 5b. Head and the two anterior thoracic segments, from above; x 24. 



— 5c. Right maxilliped, from below; x 77. 



— 5 d. Major part of first left leg, from behind ; ab. x 35. 



— 5 c Posterior part of the body, from above; x 25. The uropods lost. 



— 5 f . Abdomen and seventh thoracic segment with the proximal part of left leg, from below; 



x 30. The uropods lost. 



Fig. 6. Ischnomesus armatus n. sp. 



Fig. 6 a. Male, from above; x 11. 



— 6b. Head with the two anterior thoracic segments of the same male, from above; x 24. 



— 6 c. Left mandible, from below ; x 64. 



— 6d. Right maxilliped of a male, from below; x 64. 



