246 CRUSTACEA MALACOSTRACA III. 



Fig. 4 d. Abdomen and the two posterior thoracic segments, with the proximal parts of their legs, of 

 a male, from below; x 53. 



4 e. Abdomen and the two posterior thoracic segments, with the proximal parts of their legs, of 



a female, from below; x 37. 

 4I Proximal portion of left antenna of a female from Norway, from above; x 84. The figure 

 shows the extreme length of the exopod, which is not marked off by any suture. 



Fig. 5. Nannoniscus arcticus n. sp. 

 Fig. 5 a. Anterior half of a female, from above; x 24. 



5 b. Anterior right part of the head of a female, with antennula and proximal part of antenna, 



from above; x 76. 



— 5 c. Abdomen and the two posterior thoracic segments, with the basal parts of their legs, of a 



female, from below; x 32. 



— 5 d. Right uropod of the same female, from below; x 82. 



Fig. 6. Nannoniscus ana/is 11. sp. 



Fig. 6 a. Female, from above; x 20. 



— 6 b. Anterior half of a male, from above; x 27. 



— 6 c. Right antennula of a male, from above; x 100. 



— 6 d. Right antenna of a male, from the outer side; x 42. 



— 6e. First left thoracic leg of a male, from behind; x 48. 



— 6f. Third left thoracic leg of a male, from behind; x 48. 



— 6 g. Distal part of the leg shown in fig. 6 f, from behind ; x 92. 



6 h. Abdomen and last thoracic segment, with the proximal parts of its legs, of a male, from 



below; x 41. 

 6i. Abdomen and the two posterior thoracic segments, with the proximal parts of their legs, 



of a female, from below; x 41. 

 6k. Abdomen and the three posterior thoracic segments of a female, from the left side; x 33. 



The legs omitted excepting the coxse of the sixth and seventh legs. 



Plate IX. 

 Fig. 1. Nannoniscus ana lis u. sp. (continued). 

 Fig. i a. Seventh left thoracic leg of a male, from in front; x 48. 



— 1 b. Seventh left thoracic leg of a female, from in front; x 58. 



Fig. 2. Nannoniscus reticulatus u. sp. 

 Fig. 2 a. Male, from above; x 27. The reticulation omitted. 



— 2 b. Anterior part of the head of a male, from above; x 40. 



— 2 c. Female, from above; x 32. 



— 2d. Right antennula of a female, from above; x no. 



— 2 e. First left thoracic leg of a female, from behind; x 51. 



