CRUSTACEA MALACOSTRACA. 



Ill) 



Fig. I e. Same leg; x lo. 



— if. Right third tnink-leg, from in front; x '4/j. 



— I g. Fifth left trunk-leg, from in front; x 'V,. 



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



— I i. Plenrobranchia of third trunk-leg; x 21. 



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



— 1 1. Tel.son and left uropod, fi'om above; x 5. (All marginal set?e are plumose, but it could not be 



shown in the figure). 



Fig. 2. Acanthcphyra Batei Faxon (on the plate the synonym A. brcvirostris Bate). 

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



Fig. 3. Gnathophansia Zoea Will.-Snhm. 

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

 ///. 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/j. /. first joint, from which the long lobe, /", 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. I-,eft maxilla, from below; x 'i/2. i. first joint, without any lobe; 2. second joint, from which 



the very long lobe, /^ proceeds; j. third joint, produced into the long, distally cleft lobe, 

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

 uniformly greyish areas are membranous skin. 



F^ig. 4. Hansenomysis Fyllce H. J. H. 

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

 from the left side; x ^^/j. JV. and V//. sixth and seventh entirely free thoracic segments. 

 o. ocular plate. 



— 4 b. Front part of cephalothorax with antennulte and antenna; 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 ig. 



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



— 4f. 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. 



— 41. Posterior part of abdomen in the male, from above; x 11. 



— 4 k. Terminal part of the telson shown in fig. 41, from above; x 29. 



Plate V. 



Fig. I. Longithorax fuscus n. sp. 

 Fig. I a. F-emale with the marsupium half developed; x scarcch' 5. Most of the legs broken off. 



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



peduncular joints present. 



— I c. Same head, from above; x 8. 



— id. Right antennal scpiama, from above; x 23. 



