PLATE XIII. 



Fig. I. Thysanopoda mqualis H. J. H. (continued). 

 Fig. \a. Anterior part of an adult male from Stat. 148; >, 13. 



Fig. 2. Tliysanopoda orientalis n. sp. 



Fig. 2a. Anterior part of a very large female from Stat. 203; X '72- ' 



Fig. 2b. Anterior part of the same female, from the side; X 9. 



Fig. 2c. Major part of left antennular peduncle of the same female, from the side; X 15. 



Fig. 2d. Anterior part of a very young specimen measuring 10 mm., from the side; X iS. 



Fig. 2e. Anterior part of a larva, 5.7 mm. long, from above; x 26. 



Fig. 2/. Anterior part of the same larva, from the side; 20. mxp. maxilliped; /r/'. first thoracic leg; 



br. branchiae. 

 Fig. 2g. Distal part of first joint with second joint of left antennular peduncle of the same larva, from 



above; 80. 

 Fig. 2I1. Posterior part of the abdomen of the same larva, from above; ;■: 23. 

 Fig. 21. Posterior part of the telson of the same larva, from above; x 81. 



Fig. 3. Thysanopoda Agassizii Ortm. 



Fig. 3«. Anterior part of an immature male from Stat. 203; • 12. 



Fig. 3^. Anterior part of the same immature male, from the side; ■ 12. 



Fig. 3^. Anterior part of a very young specimen, measuring 9.5 mm., from the side; "/ 21. 



Fig. 3<:/. Anterior part of a larva measuring 4.7 mm., from above; 30. 



Fig. 3f. Distal part of first joint with second joint of left antennular peduncle of the larva shown in 



fig. 3a', from above; ,-, ^6. 



Fig. 3/. Posterior part of the abdomen of the same larva, from above; • 33. 



Fig. ■^g. Posterior half of the telson of the same larva, from above ; x 76. 



Fig. 4. Euphansia dionicdecc Ortm. 



Fig. A,a. Anterior part of a male from Stat. 1S5; > 14. 



Fig. A^b. Peduncle of the right antennula of another male, from above; > 30. 



Fig. 4c. Copulatory organ of first left pleopod of a somewhat small adult male from Stat. 185, unrolled 



and seen from behind; X 61. /-. terminal process; /l proximal process; p^. lateral process; 



III. auxiliary lobe. 

 Fig. 4^/. Inner lobe and major part of median lobe of left copulatory organ of a large male from 



Stat. 185; X 70. 

 Fig. \e. Distal part of the proximal process of the organ shown in fig. \c, from the side; 300. 



