HOLOTHITRIOIDEA OP THE INDIAN OCEAN. 101 



Plate XIII. 



Holothuria impatiens (Forskaal). 

 Figs. 21a, 2 1&.— Tables, x 400. 

 Fig. 21c.— Button. X 400. 

 Fig. 21cZ. — Calcareous ring, x 4|-. 



Holothuria scabra, Jager. 



Figs. 22a, 226, 22c.— Tables, x 400. 

 Fig. 22d.— Button, x 400. 

 Fig. 22e. — Calcareous ring, x 3. 



Holothuria spinifera, Theel. 



Figs. 23a, 236.— Tables, x 300. 

 Fig. 23c.— Table in papilla, x 225. 

 Fig. 23c?. — Button, x 300. 

 Fig. 23e. — Calcareous ring, x 4. 



Plate XIV. 



Holothuria ocellata, Jager. 



Figs. 24a, 246.— Tables, x 450. 



Fig. 24c. — Knobbed button, x 450. 



Fig. 24fZ. — Perforated rod from papilla, x 225. 



Fig. 24e.— Calcareous ring, x 3 J. 



Holothuria martens u. Semper. 

 Figs. 25a, 256.— Tables, x 450. 

 Fig. 25c. — Knobbed button, x 450. 

 Fig. 25cZ. — Perforated rod from papilla. x 125. 

 Fig. 25e. — Calcareous ring, x 3J. 



Holothuria albiventer. Semper. 



Figs. 26a, 266.— Tables, x 325. 



Fig. 26c.— Knobbed button. X 325. 



Fig. 26c?. — Calcareous ring. x 4. 



