This week saw the arrival of Brazilian shark worker Sarah Viana. Sarah is with us for two weeks and is 'up to her armpits' in dogfishes.

Another highlight is Ken Thongpila's fabulous sponge garden photo, which shows typical habitat and fishes at North Head, Sydney Harbour. Not surprisingly, the area is a popular dive site.

New visitor:

Sarah Viana

New movies:

Reef Stonefish, Synanceia verrucosa Scroll down the page to watch Glenn Moore, our colleague from the Western Australian Museum, getting up close and personal with this dangerous species.

New images:

Bigeye Trevally, Caranx sexfasciatus
Goblinfish at Kurnell
North Head sponge garden
Southern Pygmy Pipehorse at Edithburgh
Southern Pygmy Pipehorse, Idiotropiscis australe