Plate I. 



Fig. 1. Sarcophytum aherraiis, n. sp. Stalked Colony witliout basal attacli- 

 meut. Slightly enlarged ( x 1 J ). 



„ 2. Sarcophytum aberrans, ii. sp. Encrusting Colony, (a) portion enlarged 

 ( X !;§■), showing part of the spiral bare streak, at one place the ccenen- 

 chyma overarching it, at another the cosneuchyma completely surrounding 

 the support ; (h) distal end of an autozooid showing the arrangement 

 of the pinnules on the tentacles; (c) colony reduced (g- n. s.) in size 

 showing the incrusting habit and the projecting siliceous support. 



,, 3. Sai'cojyJiytum agaricoides, n. sp. (Nat. size.) Note the characteristic 

 autozooids ; the siphonozooids (represented by white spots) are much 

 more numerous than in the figure. 



„ 4. Spongodes alcocki, n. sp. ( x 15). Two polyps showing the single pro- 

 jecting spicule of the Stutzbiindel. 



,, 5. Pai-agorgia sp)lendens,u. s-^. (Nat. size.) Note the characteristic clusters 

 of autozooids. 



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



,, 7. Keroeides horeni, Wright and Studer. Colony nat. size. 



,, 8. Muricella hengcdensis, n. sp. Small portion enlarged ( x 20). Note the 

 large size of the spicules of the coeueuchyma. 



,, 9. PleurocoraUium variahile, n. sp. Small portion enlarged ( x 8) showing 

 the arenaceous coenenchyma and the stellate appearance of the retracted 

 polyps. 



,, 10. Juncella elongafa, Fi\l\as. Small portion enlarged ( x 4). 



