358 CRUSTACEA MALACOSTRACA. III. 



Fig. 2 e. Major part of left maxillula, from below; x 60. /', 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. 



2k. 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. 



2 o. 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 brachiata Stimpson. 



Fig. 33. 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. 4 a. Major proximal part of left maxilliped of a male, from below; x '3/ 3 . / first joint; 2. second 

 joint; A lobe from second joint; j. third joint; 4. fourth joint; 5. 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. Arcturus Baffini Sabiue. 



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. Pleuroprion hystrix G. O. Sars. 

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



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

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



Fig. 7. Pleuroprion 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 '5/2- 

 7b. Abdomen of a female, from above; x J s/2- 



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



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

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



