BiGELOW. — Medusae and Siphonophorae. 



PLATE 7. 



Ceratocymba sagittata (Quoy & Gaimard). 



Fig. 1. Inferior nectophore, 45 mm. long, seen somewhat obliquely from the 



left side. 

 Fig. 2. Dorsal view of base of female gonophore, 15 mm. long, from free 



eudoxid. 

 Fig. 3. Similar view of male gonophore, 11 mm. long, from free eudoxid. 

 Fig. 4. Cross-section of female gonophore 35 mm. long. 

 Fig. 5. Cross-section of male gonophore 30 mm. long. 



HippopoDius Hippopus (Forsk§,l). 



Fig. 6. Young tentillum. 

 Fig. 7. Adult tentiUum. 



