CRUSTACKA MAI.ACOSTRACA, III. 



I : \K. i c. Head of a female, from above; x 54. 



i il. First thoracic leg of a male; x 89, 



I e. Distal part of first thoracic leg of a female; x 89. 



it Second right thoracic leg of a female, from the anterior side; x 89. 



i g. Abdomen with right uropod of a female, from above; x 51. 



ih. Abdominal operculum of a female, from below; x 401 



i i. Abdomen of a male, from below; x 4<x Uropods omitted. 



Fig. 3. Haploniscus bicuspis G. O. Sars. 

 Fig. a a. Male from the "Ingolf StaL 117, from above; x 15. Legs omitted. 



ab. Left antennula, first joint of right antenuula and the whole right antenna of a male from 



the the same station, from above; x 35. 

 ac Second, third and fourth joints of left antenna of a male from the same station, from the 



outer side; x 50. 



ad. Right antennula and antenna of a female from the same station, from above; x 35. 

 3 e. Left raaxilliped of a male from the same station, from below ; x 60. 

 a L Distal part of third right leg of a male from the same station, from behind ; x aoa 

 ag. Posterior end of abdomen of the male shown in fig. a a, from above; x 30. u. uropods. 

 a h. Abdomen and the two posterior thoracic segments, with the proximal parts of their legs, of 



a male from the "Ingolf StaL 117, from below; x 34. a. anal doors; c. the very long and 



setiform male appendix of left lateral opercular plate; u. uropod. 

 a L Median lamella of the abdominal operculum of a male from the same station, from below ; 



X44- 



3 k. Posterior end of abdomen of a female from the same station, from above; x 34. 

 a L Abdomen of another female from the same station, from below ; x 34. 



Kg. 3. Haploniscus spiniftr n. sp. 

 Fig. 38. Frontal margin of the head with right antennula and antenna, and the proximal parts of 



left antennula and antenna, of a male from the "IngolF StaL aa, from above; x 33. 

 3 b. First joint of the flagellum, and terminal part of the peduncle with the characteristic spini- 



form upper process of left antenna of a male, from above; x ao. 

 3 c Second, third and fourth joints of left antenna of a male from the "Ingolf StaL aa, from the 



outer side; x 501 

 3 d. Posterior end of abdomen of a male from the same station, from above; x 33. m. uropods. 



3 e. Posterior end of abdomen of another male from the same station, from above; x 23. 



3 L Median plates of the abdominal operculum of a male from the Mile station, from below; 



<48, 

 ~ 3 S- Right lateral plate of the abdominal operculum of the last-named male, from above; x 48. 



3h. Abdomen of a female without marsupium from the "Ingulf StaL 36, from below; x 33. a, 



anal doors; o. operculum; u. uropods. 



V 



