256 



CRUSTACEA MALACOSTRACA. III. 



Fig. 2 m. Same median lamella of the male operculum, from the left; x 22. 



— 2 n. Second left male pleopod, from above; x 22. It is seen that the copulatory organ terminates 



in an extremely long thread, f, t, which has been turned around the pleopod. 



Fig. 3. Pseudomunnopsis Beddardi Tattersall. 

 Fig. 3 a. Male, from above; scarcely x 9. 



— 3 b. Anterior half of a female, from above; scarcely x 9. 



— 3 c. Left mandible of a female, from below; x 33. p. plate for the attachment of the mitscit/its 



adductor. 



— 3d. Left maxilla of the same female, from below; x 33. 



— 3 c Left maxilliped of the same female, from below; x 24. 



— 3 f . Distal part of the maxilliped shown in fig. 3 e, from below ; x 56. 



— 3 g. First left thoracic leg of a female, from below; x 23. 



— 3 h. Median lamella of the male abdominal operculum, from below; x 15. 



— 3 i. Distal part of the lamella shown in fig. 3I1, from below; x 15. 



— ■ 3 k. Second pair of male pleopods, fused and constituting a large plate with a somewhat deep 

 and narrow terminal incision, in which the copulatory organs are seen, from below; x 15. 

 3 1. Distal part of the plate shown in fig. 3 k, exhibiting the median incision, one of the copu- 

 latory organs and one of the thick coupling hooks with the musculature visible through 

 the integument, from below ; x 45. 



— 3111. Posterior part of abdomen with anal doors and uropods of a male, from below; x 32. 



Fig. 4. Cirolana borcalis Lilljeborg. 

 Fig.' 4 a. Proximal half of first left pleopod, from in front; x "/a- si. sternite; 1 i. inner plate of first 

 joint, prcrcoxa, formed by the fusion in the median line of two chitinized pieces belonging 

 to both left and right pleopod; 10. outer chitinized plate of first joint near the outer margin 

 of the pleopod; 2. small chitinized plate representing second joint -- the remainder of that 

 joint membranous; 3. third well-chitinized joint; en. endopod; ex. exopod. 



Fig. 5. Eurydice caeca n. sp. 

 Fig. 5 a. Male, from above; x 6. 



5 b. Anterior part of the head, with right antennula and the proximal joints of left auteunula 

 and both antennae, of the same male, from below; x 18. f. lamina frontalis; c. clypeus; /. 

 labrum. 



5c. Distal half of left mandible, from above; x 53. c. coudylus; m. molar process. Palp omitted. 



— 5 d. Molar process of the same mandible, from below; x 135. 



— 5 c Right maxilliped, from above; x 83. I 2 . lobe from second joint. 



— 5 f. Second left thoracic leg, from behind; x 20. 



— 5 g. Fifth left leg, from in front; x 20. 



— 5 h. Seventh left leg, from in front; x 20. 



— 5 i. Posterior part of abdomen of the male shown in fig. 5 a, from above; x 25 / 2 . a. posterior 



margin of the abdomen, more highly magnified. 



