236 CRUSTACEA MALACOSTRACA. III. 



Fig. 4. Haploniscus armadilloides n. sp. 

 Fig. 43. Body of a female without marsupium, from above; x 27. 



40. Head with antennulae and antennae of the same specimen, from below; x 55. The mouth- 

 parts omitted. 



40. Distal part of fifth left leg, from behind; x 136. 



4d. Abdomen of the same specimen, from below; x 48. a. anal doors; o. operculum; u. uropods. 

 4e. Posterior part of abdomen with uropods and anal doors of the same specimen, from below; 



x 70. 



Fig. 5. Hydroniscus abyssi n. gen., n. sp. 



Fig. 5 a. Female without marsupium, from above ; x 16. 



5 b. Another female, from the left side ; x 16. Four legs omitted. 



5c. Anterior part of the head of a female, from below; x 35. Left antennula and antenna 



omitted. 



5 d. Left mandible of a female, from below ; x 64. Major part of the palp omitted. 

 5 e. Distal half of the same mandible, from below ; x 134. 

 5 f. Left maxilliped of the same female, from below ; x 64. 

 5 g. Major part of first left thoracic leg of a female, from behind; x 57. 

 5h. Distal part of the leg shown in fig. 5 g, from behind; x 140. 

 5$. Distal part of seventh left leg, from in front; x 140. 

 5 k. Abdomen and the two posterior thoracic segments with the proximal parts of their legs of 



a female without marsupium, from below; x 27. a. anal doors; o. operculum; /. process 



from the lower margin of the abdomen. 



Plate HI. 



Fig. i. Munna Boeckii Kroyer. 



Fig. i a. Median lamella of the abdominal operculum of a male from the Faeroes - - northern end of 

 Naalse , from below; x 48. 



1 b. Distal parts of the pleopods shown in fig. i a, from below and more highly magnified. 



Fig. 2. Munna groenlandica n. sp. 



Fig. 2 a. Left part of the head with eye, antenmila and proximal part of the antenna of an ovigerous 

 female from Egedesminde, from above; x 27. 



2 b. Abdomen of the same female, from above; x 27. 



2 c Median lamella of the abdominal operculum of a male from Danmark-0 (East Greenland), 

 from below ; x 48. 



2 d. Distal parts of the pleopods shown in fig. 2 c, from below and more highly magnified. 



Fig. 3. Munna Hanseni Stappers. 

 Fig. 3 a. Anterior part of the body of a female from the "Ingolf" Stat. 44, from above; x 23. 



3 b. The two posterior thoracic segments and the abdomen of the same female, from above; 



x 23. 



