EXPLANATION OF PLATE V 



Fig. L — I sis hippuris, Liniiseus. Part of a colony showing 

 the pahnate terminations of the twiys. Photo- 

 graph of a specimen 7cm. in height, from off the 

 coast of Queensland. 



Fig. 2. — Isis hijjpuris, Linnreus. Photograph of a specimen 

 13-3cm. in height, from Murray Island, Torres 

 Strait. 



