PLATE IV 



Animal, lateral view; magnified 5 diameters. 

 Same, as seen from the carinal side; magnified 5 diameters. 

 Interior of a, scutum, d tergum and c carina; magnified 5 diameters. 

 Carina, dorsal view; magnified 5 diameters. 

 Labrum; magnified 52,5 diameters. 

 Mandible; magnified 52,5 diameters. 

 Maxilla; magnified 52,5 diameters. 



Pedicels of cirri of the sixth pair with the caudal appendages (c. a.) ; 

 magnified 52,5 diameters. 



Fig. 9 — 12. Alepas morula n. sp. 



Fig. 9. Animal, lateral view; magnified 3,4 diameters. 



Fig. 10. Labrum; magnified 52,5 diameters. 



Fig. II. Mandible; magnified 52,5 diameters. 



Fig. I irt. Inferior angle of the same; magnified 180 diameters. 



Fig. 12. Maxilla; magnified 52,5 diameters. 



Fig. 13 — 16. Alepas intermedia n. sp. 



Fig. 13. Animal, lateral view; magnified 3,6 diameters. 

 Labrum; magnified 52,5 diameters. 

 Mandible; magnified 52,5 diameters. 

 Maxilla; magnified 52,5 diameters. 



Fig. 17 — 18. Alepas ovalis n. sp. 



Fig. 17. Animal, lateral view; magnified 3,3 diameters. 



Fig. 18. Animal, seen from the rostral side; magnified 4 diameters. 



Fig. 19. Alepas tenuis n. sp. 



Fig. 19. Animal, lateral view; magnified 3,3 diameters. 



Fig. 20 — 22. Ibla Sibogae n. sp. 



Fig. 20. Animal, lateral view after the right half of the capitulum and the whole 

 body has been taken away. Two little males are seen in the mantle- 

 cavity; magnified 3 diameters. 



Fig. 21. Interior of the scutum A and the tergum B; magnified 18 diameters. 



Fig. 22. Labrum with the mandible of the right side; magnified 52,5 diameters. 



Fig. 22(7. Inferior angle of the mandible; magnified 254 diameters. 



