!_!,, CRUSTACEA MALACOSTRACA. 11. 



Fig. 2 b. Cephalothorax and the two following segments of a female without marsupium, from the 

 left side; x 84. 

 2c. Left fifth thoracic leg, from the outer side; x 84. 



— 2d. Abdomen of the female shown in fig. 2b, from the left side; x 84. 



Fig. 3. Leptognathia brrvircinis Lilljeborg. 

 Fig. 3 a. Cephalothorax and second thoracic segment of a female without marsupium from the "In- 

 golf' Stat. 117, from the left side; x 83. A minute parasitic Copepod is attached to the 

 outer side of second joint of second thoracic leg. 

 3 b. Four posterior abdominal segments with left fourth pleopod and left uropod of the above- 

 named female, from the left side; x 83. 



— 3 c. Abdomen of an ovigerous female from Norway, from the left side; x 83. Pleopods excepting 



the third and the setae of the uropod omitted. 



— 3d. Anterior part with appendages of an adult male from the "Ingolf" Stat. 36, from the left 



side; x 84. 



— 3 e. Left sixth thoracic leg of the same male, from the outer side; x 84. 



3! Sixth and seventh thoracic and all abdominal segments of the same male, from the left side; 

 x 84. Thoracic legs and the pleopods of first, second and fourth abdominal segments 

 omitted. 



— 3g. Sixth abdominal segment with left uropod of an adult male from the "Ingolf" .Stat. 101 



from the left side; x 80. 



Fig. 4. Leptognathia cfassa n. sp. 

 Fig. 4a. Female without marsupium, from above; x 29. 



— 4 b. Cephalothorax and second thoracic segment with appendages of a female, from the left 



side; x 60. 



— 4c. Left sixth thoracic leg of another female, from the outer side; x 79. 



— 4d. Abdomen of the female shown in fig. 4b from the left side; x 60. Pleopods omitted ex- 



cepting the third. 

 4c Three posterior abdominal segments of the last-named female, from below; x 60. The 

 pleopods on the left side of the figure omitted. 



Fig. 5. Leptognathia polita n. sp. 

 Fig. 5a. Female without marsupium, from above; x 17. 



5b. Cephalothorax and second thoracic segment of the same female, from the left side; x 36. 



Left second thoracic leg omitted excepting its most proximal part. 

 5c. Major part of left chela of the same specimen, from the outer side; x 80. 

 5 d. Right second thoracic leg of the same female, from the outer side; x 50. 

 5c Left sixth thoracic leg of the same female, from the outer side; x 50. 



5I'. Five posterior abdominal segments with left fifth pleopod and left uropod of the same spec- 

 imen, from the outer side; x 36. 



