REPORT ON PHILIPPINE HYDROIDA 241 



EXPLANATION OF PLATES 

 Plate 40 



Fig. 1. Stegopoma dimorpha. Hydrothecae (enlarged). 



2. Stegopoma dimorpha. Small type of gonangium (enlarged). 



3. Stegopoma dimorpha. Large type of gonangium (enlarged). 



4. Hebella spiralis. Part of colony (enlarged). 



5. Hebella spiralis. Hydrotheca (enlarged). 



6. Hebella spiralis. Hydrotheca (enlarged). 



Plate 41 



Fig. 1. Acryptolaria normani. Hydrothecae (greatly enlarged i. 



2. Acryptolaria normani. Hydrothecae (enlarged). 



3. Zygophylax curvitheca. Gonangia (enlarged). 



4. Dictyocladium aberrans. Hydrothecae (enlarged). 



5. Dictyocladium aberrans. Gonangium (enlarged). 



Plate 42 



Fig. 1. Sertularella comuta Stechow. Hydrothecae (enlarged). 



2. Sertularella comuta Stechow. Gonangia (enlarged). 



3. Sertularella mirabiUs Jaderholm. Gonangium (enlarged). 



4. Sertularella mirabiUs Jaderholm. Gonangium (greatly enlarged). 



5. Diphasia heurteli Billard. Hydrothecae (enlarged). 



6. Diphasia heurteli Billard. Gonangium, side view (enlarged). 



7. Diphasia heurteli Billard. Gonangium. front view (enlarged). 



Plate 43 



Fig. 1. Diphasia inornata. Hydrothecae and gonangium (enlarged). 



2. Plumularia aglaophenoides Bale. Hydrothecae (enlarged). (After 



Bale). 



3. Plumularia aglaophenoides Bale. Gonangium (greatly enlarged). 



4. Plumularia fiabellata. Hydrothecae (enlarged). 



5. Plumularia fiabellata. Hydrothecae (greatly enlarged!. 



Plate 44 



Fig. 1. Plumularia hargitti. Hydrothecae (enlarged). 



2. Plumularia hargitti. Gonangium (enlarged). 



3. Plumularia camarata. Part of branch (enlarged). 



4. Plumularia camarata. Three hydrothecae (greatly enlarged). 



5. Antennella biarmata. Hydrothecae (enlarged). 



6. Antennella recta. Hydrotheca (greatly enlarged). 



7. Antennella recta. Hydrothecae (enlarged). 



Plate 45 



Fig. 1. Acanthella effusa (Busk). Gonangia (enlarged). 



2. Acanthella effusa (Busk). Gonangia (greatly enlarged). 



3. Antennopsis pacifica. Part of branch (enlarged). 



4. Antennopsis pacifica. Hydrotheca (greatly enlarged). 



