34 SPOLIA ZEYLANICA. 



dichotamously branched, black in colour,., having small bunches of 

 spicules projecting from the surface. Probably an Axinella. Other 

 sponges as in Station 6. 



Station 8. — Quarter mile north-east of York Island. 



Depth, 3 fathoms. Bottom, sand. 



Branched sponge, probably Plocamia manaarensis. Dichotamous 

 weed-like sponge (Axinella). 



Station 9. — Opposite Dockyard, 200 yards from shore, half way 

 between York Island and Ostenberg Point. 



Depth, 8 fathoms. Bottom, mud and sand. 



One Holothuria scabra. 



Station 10. — South end of Dockyard, 200 yards north-east of 

 Ostenberg Point. 

 Depth, 12 fathoms. Bottom, rock and sand. 

 Nothing. 



Station 11. — In a line between the Naval Hospital and the south 

 end of York Islands, half way across the channel. 

 Depth, 5 fathoms. Bottom, sand. 

 Nothing. 



Station 12. — 500 yards north-east of Station 6. 

 Depth, 3 fathoms. Bottom, sand. 



Forty-eight large specimens of Holothuria marmorata. Purplish- 

 gray sponge in abundance. Yellow sponge. 



Stations 13 and 14. — Starting half way between York Island and 

 Powder Rocks and steering for Powder Rocks. 



Depth, 5 to 8 fathoms. Bottom, sand and coralline. 



Nothing. 



January 19, 1911. 



Station 15. — ^Nicholson's Cove, half way down the bay. 



Depth, 6 fathoms. Bottom, small stones and sand. 



Madrepora scandens. Corals and sponges in abundance. A 

 blue branched sponge {Petrosia similis) very abundant, attached 

 to stones. One commercial sponge. 



Station 16. — ^Nicholson's Cove. Nearer the head of the bay than 

 Station 15. ^ 



Depth, 2 fathoms. Bottom, sand. 



Few broken shells. Few Spatangoids. Metapeneus mogiensis. 

 Alpheus bucephalus. Small specimen of Holothuria marmorata. 



Station 17. — Quarter mile south-east of Powder Islands. 

 Depth, 2 fathoms. Bottom, sand. 

 Large number of Holothuria marmorata. 

 Station 18. — Quarter mile south-west of Station 17. 

 Depth, 3 fathoms. Bottom, sand and stones. 

 Several Holothuria marmorata. One Holothuria scahra. Yellow 

 sponge, containing Synapta striata. 



