CRUSTACEA MAJ.ACOSTRACA. 119 



Fig. 1 c. Same leg; x 10. 



— if. Right third trunk-leg, from in front; x r 4/ 3 . 



— 1 g. Fifth left trunk-leg, from in front; x '■) .. 



— 1 h. Distal part of fifth leg; x 20. 



— 1 i. Pleurobranehia of third trunk-leg; x 21. 



— 1 k. Second left pleopod, from in front; x 5. 



1 1. Telson and left uropod, from above; x 5. (All marginal setae are plumose, but it could not be 

 shown in the figure). 



Fig. 2. Acantlicphyra Batei Faxon (on the plate the synonym A. brevirostris Bate). 

 Fig. 2 a. Front half of the animal ; x 3/ 2 . 



Fig. 3. Gnathophausia Zoea Will.-Suhm. 

 Fig. 3 a. Terminal part of the left mandible, from below, x 18. c. cutting edge; Im. lacinia mobilis; 

 m. pars molaris. 



— 3 b. Same part, from above; x 18. /. lacinia mobilis. 



— 3 c. Terminal part of the right mandible; from above; x 18. 



— 3d. Left maxillula, from below; x *s/ x . 1. first joint, from which the long lobe, Z 1 , proceeds; 2. second 



joint; j. third joint produced into a long lobe; 4. fourth joint; j. fifth joint. The uniformly 

 greyish portions are membranous. 

 3 e. Left maxilla, from below; x : 5/ 2 . r. first joint, without any lobe; 2. second joint, from which 

 the very long lobe, I 2 , proceeds; j. third joint, produced into the long, distally cleft lobe, 

 /3, and bearing the exopod, ex.; 4. fourth, and 5. fifth joint, both without any lobe. The 

 uniformly greyish areas are membranous skin. 



Fig. 4. Hansenomysis Fyllce H. J. H. 

 Fig. 4 a. Cephalothorax with the basal parts of the anteuuula and the antenna of an adult female, 

 from the left side; x 26 /~. IV. and VII. sixth and seventh entirely free thoracic segments. 

 0. ocular plate. 



— 4 b. Front part of cephalothorax with antennulse and antennae of an adult male, from above; x 8. 



— 4 c. Front part of the carapace with the basal parts of the right antennula and antenna of the 



female shown in fig. 4 a; x 8. o. ocular plate. 



— 4 d. First right pleopod in the male, from behind ; x 19. 



— 4 e. Second right pleopod in the male, from behind; x 19. 



— 4 f. Third right pleopod in the male, from behind ; x 19. 



— 4 g. Fourth right pleopod in the male, from behind; x 19. 



— 4h. Fifth right pleopod in the male, from behind; x 19. 



— 4i. Posterior part of abdomen in the male, from above; x n. 



— 4 k. Terminal part of the telson shown in fig. 4 i, from above; x 29. 



Plate V. 

 Fig. 1. Longithorax fuscus n. sp. 

 Fig. 1 a. Female with the marsupium half developed ; x scarcely 5. Most of the legs broken off. 



— 1 b. Head of the same specimen, from the left side; x 8. Of the antennula only the two proximal 



peduncular joints present. 



— 1 c. Same head, from above; x 8. 



— 1 d. Right antennal squama, from above; x 23. 



