40 



CALLIGORGIAD^:. 



nate ; branchlets ending in a broader tubercle, simple, rarely 

 forked. 



Seba, Thes. iii. 1. 100. f. 9? 



Brandella intricata, Gray, 1. c. p. 23. 



Hob. Bass's Strait, Dewi Beef (Rayner). 



** Polype-cells cylindrical. 

 64. NICELLA. 



Coral fan-like, on one plane, branched ; branches forked, rather 

 diverging. Bark smooth, brown. Polype-cells cylindrical, trun- 

 cated, diverging from the stem at nearly right angles, mouth open. 

 Axis calcareous, white, solid. 



Scirpearia, 2, Gray, P. Z. S. 1859, p. 481. 



140. Nicella mauritiana. B.M. 



Coral fan-like, dichotomously branched ; stem cylindrical, longi- 

 tudinally striated ; bark thin, pale brown ; cells elongate, cylindrical, 



Fig. 12. 



Nicella mauritiana. 



