PLATE LXXVII. 



PAGE 



Eurete semperi, F. E. S., . . . 292 



Fig. 1. A specimen preserved in alcohol, with small anthozoa ; natural size. 



Fig. 2. Transverse section of the tube-wall ; x 60. 



Fig. 3. Uncinatum ; x 300. 



Fig. 4. Exterior part of a dermal scopula with four straight prongs; x 450. 



Fig. 5. Dermal scopula with slightly bent prongs ; x 450. 



Fig. 6. Interior part of a gastral scopula with bent prongs ; x 450. 



Fig. 7. Simple free oxyhexact ; x 300. 



E'ig. 8. Oxyhexact fused perpendicularly by one ray to the surface of a beam 

 of the dictyonal framework ; x 300. 



Fig. 9. Small discohexaster ; x 450. 



Fig. 10. Gastral scopula with four prongs, whose stalks are slightly bent outwards ; 

 x450. 



