2 5 8 



CRUSTACEA MALACOSTRACA. III. 



Fig. 2 e. Major part of left maxillula, from below; x 60. I 1 , lobe from first joint. 



— 2 f . Distal part of the outer lobe of the maxillula shown in fig. 2 e, from below; x 180. 



— 2 g. Maxillipeds of the same female, from below ; x 60. 



— 2 h. First left thoracic leg of a female, from the outer side; x 22. 



2 i. Seventh joint with claw of the leg shown in fig. 2 h, from the outer side; x 46. 



— 2 k. Second left thoracic leg of a female, from the outer (posterior) side; x 22. 



— 2 1. Seventh left thoracic leg of the same female, from the anterior side; x 22. 



— 2 m. Abdomen and posterior part of thorax of a female, from above; x 13. Setae omitted. 



— 2 n. First left pleopod of the same specimen, from below; x 24. 

 20. Second left pleopod of the same female, from below; x 24. 



— 2 p. Right uropod of the same female, from the outer side; x 24. ex. exopod. 



— 2 q. Telson of a female, from below ; x 24. s. statocysts. 



— 2 r. The statocysts of the telson shown in the preceding figure ; x 80. 



Fig. 3. Calathura bracliiata Stimpson. 

 Fig. 3a. Proximal part of telson, from below; x 17. The integument on the lower side has been 

 removed in order to show the organ, s. the statocyst. 



Fig. 4. Mesidothea Sabini Kroyer. 

 Fig. 4a. Major proximal part of left maxilliped of a male, from below; x '3/3. /. first joint; 2. second 

 joint; I 2 , lobe from second joint; j. third joint; 4. fourth joint; j. fifth joint; ep. epipod, 

 divided into a basal part, b, and a distal part, d. 

 4b. Major proximal part of left maxilliped of an ovigerous female, from below; x 5. The letter- 

 ing as in fig. 4 a. 



Fig. 5. Arc turns Baf'fin.i Sabine. 

 Fig. 5 a. The sympod with the proximal parts of the rami of first right pleopod of a female, from in 

 front; x '5/ 2 . The number j. above the figure is a misscript for /. and indicates the first joint; 

 2. second joint, and j. third long joint of the sympod. 



Fig. 6. Plcuroprion hystrix G. O. Sars. 

 Fig. 6 a. Anterior right part of the head with right antennula and most of the peduncle of right 

 antenna of a female, from above; x 2I / 2 . 



— 6b. Abdomen of a female, from above; x 10. 



Fig. 7. Plcuroprion frigidum n. sp. 

 Fig. 7 a. Anterior right part of the head with right antennula and most of the peduncle of right 

 antenna of a female, from above; x I5 / 2 . 



— 7 b. Abdomen of a female, from above ; x '5/ 2 . 



Fig. 8. Astacilla (?) arietina G. O. Sars. 

 Fig. 8 a. Abdomen of a young female, from the left side; x 10. 



— 8b. Distal part of left antenna of a young female, from the outer side; x 13. 



