40 
W. M. TATTERSALL. 
PLATE IY. 
Euphausia triacantha. 
Fig. 1.—Male, lateral view x 6. 
Fig. 2.— Male, dorsal view of anterior end x 20. 
Fig. 3.—Inner lobe of the endopod of the first pleopods of the male to show copulatory apparatus x 80. 
Euphausia vallentini. 
Fig. 4.—Outline of antennular peduncle of ‘ Discovery ’ specimen x 20. 
Fig. 5.— Outline of rostrum and basal joint of antennular peduncle of ‘ Challenger ’ specimen x 30. 
Fig. <3.—Inner lobe of the endopod of the first pleopods of the male in ‘ Challenger ’ specimen, to show 
copulatory apparatus x 80. 
Euphausia sp, juv. 
Fig. 7.— Dorsal view of anterior end of specimen, 10 mm. x 00. 
Fig. 8.—Lateral view of antennular peduncle of the same specimen x 60. 
Fig. 9.—Spine on the third segment of the pleon of the same specimen x 20. 
Euphausia cry stall orophias. 
Fig. 10. —Inner lobe of the endopod of the first pleopods of the male, to show copulatory apparatus x 80. 
PLATE Y. 
Hansenomysis antarctica. 
Fig. 1 .— Female, dorsal view x 10. 
Fig. 2.—Enlarged view of anterior end x 23. 
Fig. 3.—Side view of anterior end x 23. 
Fig. 4.—Dorsal view of peculiar antennular organ x 70. 
Fig. 5.—Side view of same x 70. 
Fig. 6.—Mandible x 20. 
Fig. 7.—Mandibular palp x 20. 
Fig. 8.—First maxilla x 20. 
Fig. 9.—Second maxilla x 20. 
Fig. 10.—First thoracic limb x 20. 
Fig. 11.—Second thoracic limb, endopod x 10. 
Fig. 12. —Third thoracic limb, endopod x 10. 
Fig. 13.—Sixth thoracic limb, endopod x 10. 
Fig. 14.—First pleopod x 20. 
Fig. 15.—Second pleopod x 20. 
Fig. 16.—Third pleopod x 20. 
Fig. 17.—Fourth pleopod x 20. 
Fig. 18.—Fifth pleopod x 20. 
Fig. 19. —Telson and uropods x 20. 
PLATE YI. 
Pseudoinma helgicae. 
Fig. 1.—Female, dorsal view x 10. 
Fig. 2.-—Mandible x 30. 
Fig. 3.—Mandibular palp x 30. 
Fig. 4. —First maxilla x 30. 
Fig. 5.—Second maxilla x 30. 
Fig. 6.—First thoracic limb, endopod x 13. 
Fig. 7.-—Second thoracic limb, endopod x 13. 
Fig. 8.-—Telson x 20. 
