EXPLANATION OF PLATE II. 
Photographs of Polyzoa and Sponges from Fresh and Brackish Water in the 
Malay Peninsula. 
HiSIvOPIA MALAYENSIS, Sp. noV. 
Fig. I. — Type-Specimen (nat. size). 
la. — Part of the same enlarged, a, b, c, d, e = young zooecia in different 
stages of development. 
(The other figures in this plate will be explained in subsequent reports). 
