No. VI.—POLYCHATA OF THE INDIAN OCEAN, TOGETHER WITH 
SOME SPECIES FROM THE CAPE VERDE ISLANDS. 
THe SERPULIDA, wiTH A CLASSIFICATION OF THE GENERA HyYDROIDES AND 
HKuPoMATUS. 
By Hexen L. M. Prxety, B.Sc., F.Z.S., Demonstrator of Zoology and Reid Fellow, 
Bedford College, Unversity of London. 
(Plates 8 and 9.) 
(CoMMUNICATED BY Pror. J. StantEy GArpinER, M.A., F.R.S., F.LS.) 
Read Ist May, 1913. 
Tue Serpulids described here belong to five collections. Two of these were made by 
Prof. J. Stanley Gardiner, F.R.S., one from the Maldive Archipelago in 1899 and the 
other from the Seychelles and Chagos Groups in 1905. 
The three other collections were made by Mr Cyril Crossland, M.A.: the first during 
1901—2 in the neighbourhood of Zanzibar, the second during some parts of the years 
1904—8 in the Red Sea and the third in the Cape Verde Islands in July and 
August, 1904. 
I take this opportunity ot thanking both Prof. Stanley Gardiner and Mr Crossland 
for the opportunity of examining these specimens, most of which are beautifully preserved 
and of considerable interest. I should also like to thank Dr Marett Tims for his help 
and interest during the preparation of the paper. 
The collections consist of 22 species and three varieties belonging to ten genera. To 
include these forms one new genus has had to be made, viz. Pomatolezos but I think two 
have been shown to be superfluous, viz. Hucarphus Mérch and Glossopsis Bush. Seven 
of the species and two varieties seem to be entirely new. The genera Spirobranchus and 
Hydroides ave especially well represented. The following is a list of the species showing 
to which collection they belong—the letters M., SC., Z., R., V. representing Maldive, 
Seychelles or Chagos, Zanzibar, Red Sea and Cape Verde Islands respectively. The 
previously known distribution is indicated in brackets. 
1. Serpula vermicularis, Lin. SC. Z. R. V. (very wide distribution). 
2. Hydvrordes norwegica, Gunn. Mediterranean ? (Mediterranean, English Channel, 
N. Sea). . 
