EXPLANATION OF PLATES. 



Plate I. 



Fig. 1. Sarcophytum aherraus, ii. sp. Stalked Colony without basal attachment. Slightly enlarged 



(xlj). 

 „ 2. Sarcoplujtuiii aherrans, n. sp. Encrusting Colony, (a) portion enlarged ( x 1^), showing part 



of the spiral bare streak, at one place the ccEnenchyma overarching it, at another the 



eoenenchyma completely surrounding the support ; (/)) distal end of an autozooid showing 



the arrangement of the pinnules on the tentacles ; (c) colony reduced (^ ii. s.) in size 



showing the incrusting habit and the projecting siliceous support. 

 ,, 3. Sarcophytum agaricoides, n. sp. (Nat. size.) Note the characteristic autozooids ; the siphono- 



zooids (represented by white spots) are much more numercnis than in the figin-e. 

 ,, 4. Spongodes alcocki, n. sp. ( x 15). Two polyps showing the single projecting spicule of the 



Stiitzbiindel. 

 „ -5. Paragorgia splendens, n. sp. (Nat. size.) Note the characteristic clusters of autozooids. 

 „ 6. Keroeides koreni, Wright and Studer ( x 10). Small portion of a twig. 

 ,, 7. Keroeides km-eni, Wright and Studer. Colony nat. size. 

 ,, 8. Muricella bengalensis, n. sp. Small portion enlarged ( x 20). Note the largo size of the 



spicules of the eoenenchyma. 

 „ 'J. Pleurocorallium variabile, n. sp. Small portion enlarged ( x 8) showing the arenaceous 



eoenenchyma and the .stellate appearance of the retracted polyps. 

 ,, 10. JunceUa elongata, Pallas. Small portion enlarged (x 4). 



Plate II. 



Fig. 1. Stachyodes cdhnani, Wright and Studer. Axis of a colony to show mode of branching. (Nat. 



size.) 

 „ 2. Acanfhogorgia aspera, Pourtales. Colony nat. size. 

 ,, .3. Chrysogorgia flexilis, Wright and Studer. Colony showing branching and arrangement of 



polyps. 

 ,, 4. Ulirysogotgia irregularis, n. sp. Part of a colony to show the indefinite mode of branching. 

 „ 5. (a and b) Stachyodes allmani, Wright and Studer. Obverse and reverse views of a small 



portion of a twig enlarged. 

 „ 6. Sympodium indicum, n. sp. Portion enlarged showing burrowing polychast worm. 

 „ 7. Sympodium incrustans, n. sp. Part enlarged to show the furrowing of the polyps and also 



stages in retraction. 



Plate III. 



Fig, 1. Protoptilum medium, n. sp. Part enlarged. Note the irregular margins of the calyces. 

 ,, 2. ThouareUa moseleyi, var. spicata, n. Portion of colonj' nat. size .showing the mode of 



branching. 

 „ 3. Pararnuricea indica, n. sp. Part enlarged to show the markedly spinoso character of the 

 eoenenchyma. 

 17 



