100 SPOLIA ZEYLANICA. 



Plate IX. 

 Holoihuria cinerascens (Brandt). 



Figs. 10a, 106, 10c. — Various views of tables. X 500. 



Fig. lOd. — Calcareous ring, x 4. 



Fig. lOe. — Rod-shaped spicule. X 400. 

 Holothuria atra, Jager. 



Figs. 11a, 11&, lie. — Various views of tables. X 650. 



Fig. 1 Id!. — Calcareous ring. x 3. 



Fig. lie. — Perforated plate, x 650. 

 Holothuria edulis. Lesson. 



Figs. 12a, 126.— Tables, x 650. 



Fig 12e.— Perforated plate, x 650. 



Fig. 12c?. — Calcareous ring, x 6. 



Plate X. 



Holothuria monacaria (Lesson). 



Figs. 13a, 136.— Tables, x 750. 



Fig. 13e.— Button, x 750. 



Fig. 13(i. — Calcareous ring. x 7. 

 Holothuria vagabunda, Selenka. 



Figs. 14a, 146.— Tables, x 1,000. 



Fig. 14e.— Button, x 750. 



Fig. lAd. — Calcareous ring, x 6. 

 Holothuria fusco-cinerea, Jager. 



Fig. 15a. — Calcareous ring. x 5. 



Fig. 156.— Table, x 750. 



Figs. 15c, 15d, 15e. — ^Buttons, x 750. 



Plate XI. 

 Holothuria fusco -rubra, Theel . 



Fig. 16a.— Table, x 1,000. 



Figs. 166, 16c, 16c?.— Buttons, x 1,000. 



Fig. 16e.- — Calcareous ring, x 6. 

 Holothuria pardalis, Selenka. 



Figs. 17a, 176. — Tables, x 500. 



Figs. 17c, nd, lie. — Buttons, x 500. 



Fig. 17/. — Calcareous ring, x 7. 

 Holothuria maculata (Brandt). 



Figs. 18a, 186, 18e.— Tables, x 400. 



Fig. IM. — Button, x 400. 



Fig. 18e. — Calcareous ring. X 3 J. 



Plate XII. 

 Holothuria rugosa, Ludwig. 



Figs. 19a, 196, 19c.— Tables, x 550. 



Figs. 19d, 19e, 19/.— Buttons, x 550. 



Fig. 19 g. — Calcareous ring. X 6. 

 Holothuria discrepans. Semper. 



Figs. 20a, 206.— Tables, x 900. 



Fig. 20c. — Button, x 900. 



Fig. 20d. — Calcareous ring, x 12, 



