190 SPOLIA ZBYLANICA. 



Explanation of Plates, 



Plate XXVII. 



Argiodia maculata (Brandt). — View from the dorsal surface, x |, 

 (Drawn from life.) 



Plate XXVIII. 



Argiodia maculata, (Brandt). 



Fig. 2a. — View of table from below. X 650. 

 Fig. 26. — Hollow fenestrated buttons, x 475. 

 Fig. 2c. — Side view of table. X 650. 

 Fig. 2d. — Calcareous ring, x 2|. 



Argiodia flavo-castanea (Theel). 



Fig. 3a. — Knobbed button. X 500. 

 Fig. 36. — View of table from below, x 550. 

 Fig. 3c. — Side view of table. X 550. 

 Fig. Sd. — Calcareous ring. X 1 1. 



Argiodia parvula (Selenka). 



Fig. 4a. — View of table from below, x 570, 

 Fig. 46. — Side view of table. X 570. 

 Fig. 4c.— Button, x 520. 

 Fig. 4df. — Calcareous ring. X 4, 



Plate XXIX. 



Actinopyga serratidens, Pearson. 



Fig. 5a. — Calcareous ring. X 2J. 



Fig. 56. — " Bone-shaped " spicules. X 750. 



Fig. 5c. — Commonest type of spicules. X 750. 



Actinopyga miliaris (Quoy & Gaimard). 



Fig'. 66! } Spicules. X 625. 

 Fig. 6c. — Calcareous ring, x 3. 



Actinopyga echinites (Jager). 



Fig. 7a. — Calcareous ring, x If. 



^ig. 70. 7 gpjpuigg froiji the general integument. X 475. 



Fig, 7(f. — Spicules from pedicels. X 385. 



Actinopyga mauritiana (Quoy & Gaimard). 



Fig. 8a. — Spinous rod from dorsal integument. X 650. 



Pig 86. — Rod from ventral integument. X 680. 



Fig. 8c. — " Rosette " from dorsal integument. X 570. 



jTjg 8d. — " Grains " from the ventral integument. X 500. 



Fig. 8e. — Calcareous ring, x 1|. 

 Actinopyga lecanora (Jager). 



Fig. 9.— Calcareous ring. X 2 J. 



