PLATE XXVII 
Fig. 1—2. Pyrgoma kurz n. sp. 
Fig. 1. Shells attached to the coral; magnified 4,75 diameters. 
Fig. 2. a@ and 4, scutum and tergum, internal view; magnified 16 diameters. 
c and d, scutum and tergum, external view; magnified 16 diameters. 
Fig. 3—8. Pyrgoma jedani n. sp. 
Fig. 3. Colony of animals; magnified 2 diameters. 
Fig. 4. a@ and 6, scutum and tergum, internal view; magnified 13,5 diameters. 
c and d, scutum and tergum, external view; magnified 13,5 diameters. 
5. Labrum with palpi; magnified 44,5 diameters. 
Fig. 6. Mandible; magnified 44,5 diameters. 
7. Maxilla; magnified 44,5 diameters. 
Fig. 8. Outer maxillae; magnified 44,5 diameters. 
Fig. 9—16. Creusta spinulosa Leach var. sumbawae n. var. 
Fig. 9. Shell attached to a specimen of Heteropsammia; magnified 3,5 diameters. 
Fig. 10. Same specimen seen from above; magnified 10,5 diameters. 
Fig. 11. @ and 0, scutum and tergum, internal view; magnified 10 diameters. 
c, scutum, external view; magnified 10 diameters. 
Fig. 12. Labrum, with right-hand palpus; magnified 64 diameters. 
Fig. 13. Mandible; magnified 64 diameters. 
Fig. 14. Maxilla; magnified 64 diameters. 
Fig. 15. Outer maxillae, inner lobes; magnified 64 diameters. 
Fig: 16. Sixth cirrus, two of the middle segments; magnified 64 diameters. 
Fig. 17—22. Chthamalus stellatus Poli. 
Fig. 17. Shell seen from above; magnified 4 diameters. 
Fig. 18. @ and 4, scutum and tergum, internal view; magnified 18 diameters. 
Fig. 19. Labrum with palpi; magnified 80 diameters. 
Fig. 20. Mandible; magnified 80 diameters. 
Fig. 21. Maxilla; magnified 80 diameters. 
Fig. 22. Pectinated spines from the last segments of the cirrus of the 2nd pair; magnified 214 
diameters. 
