PLATE XXVII 



Fig. i — 2. Pyrgoma kuri n. sp. 



Fig. i. Shells attached to the coral; magnified 4,75 diameters. 



Fig. 2. a and /;, 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 b, scutum and tergum, internal view; magnified 13,5 diameters. 

 c and d, scutum and tergum, external view; magnified 13,5 diameters. 

 Fig. 5. Labrum with palpi ; magnified 44,5 diameters. 

 Fig. 6. Mandible ; magnified 44,5 diameters. 

 Fig. 7. Maxilla; magnified 44,5 diameters. 

 Fig. 8. Outer maxillae; magnified 44,5 diameters. 



Fig. 9 — 16. Crcusia spinulosa Leach var. sumbawae n. var. 



Fig. 9. Shell attached to a specimen of Heteropsammia; magnified 3,5 diameters. 

 Same specimen seen from above; magnified 10,5 diameters. 

 a and b, scutum and tergum, internal view; magnified 10 diameters. 

 c, scutum, external view; magnified 10 diameters. 

 Labrum, with right-hand palpus; magnified 64 diameters. 

 Mandible; magnified 64 diameters. 

 Maxilla ; magnified 64 diameters. 



Outer maxillae, inner lobes; magnified 64 diameters. 

 Sixth cirrus, two of the middle segments; magnified 64 diameters. 



Chthamalus stellatus Poli. 



Shell seen from above ; magnified 4 diameters. 



a and b, scutum and tergum, internal view; magnified 18 diameters. 

 Labrum with palpi ; magnified 80 diameters. 

 Mandible ; magnified 80 diameters. 

 Maxilla; magnified 80 diameters. 



Pectinated spines from the last segments of the cirrus of the 2nd pair; magnified 214 

 diameters. 



