Nudibranch Central

Friday, July 24, 2026

Species List: 23-07-2026, Fish Cage and back, Mooloolah River, La Balsa Park, Buddina, Sunshine Coast, Queensland, Australia.

13 species sighted at Fish Cage and back, Mooloolah River, La Balsa Park, Buddina, Sunshine Coast, Queensland, Australia. 23-07-2026.

A single solo shore entry dive with Gary of 88 minutes, 1.4 m, maximum depth 5.0 m, 19 C water temperature, up to 4 m viz.

After a month off and a PNG trip and a 4 m swell with 35 kt winds it was time to dive the river. The water was very blue BUT there was a huge amount of silt. The water temp was a cool 19 C and a perfect sunny day. From under the half bucket was a bryozoan with an eg mass. I collected it when I got home I found a 12 mm Kaloplocamus peludo. A pleasant surprise! The dive was short because I am working on the third edition of Colemans book. BTW I recorded all I found.

Species and numbers recorded:

Coryphellina lotos -5

Cratena lineata - 2

Cratena pawarshindeorum -6

Eubranchus sp. 10 -many young

Goniobranchus daphne -5

Hypselodoris obscura -1

Kaloplocamus peludo -1

Murphydoris cobbi -7

Rostanga sp. 1 -1

Tenellia sibogae -1

Tenellia sp. 70 -4

Unidentia sp. 1 -15

Unidentia sp. 14 -3

Perfect entry

Clarity

Surface

Goniobranchus daphne

Cratena pawarshindeorum

Kaloplocamus peludo

Murphydoris cobbi

Hypselodoris obscura

Cratena lineata

Coryphellina lotos

Sea snake???

Cratena lineata

Gothum City

Goniobranchus daphne

Cratena pawarshindeorum

Tenellia sp. 70

Murphydoris cobbi

Hydroids gone!

Coryphellina lotos

Cratena pawarshindeorum

Eubranchus sp. 10 spawn

Substrate

Gorgonian

Murphydoris cobbi

Rostanga sp. 1

Rostanga sp. 1 spawn

Murphydoris cobbi

Unidentia sp. 1

Float

The Pipe

Substrate

Goniobranchus daphne

Substrate and what's left of Hydroids

Unidentia sp. 14

Coryphellina lotos

Sunday, June 21, 2026

Species List: 20-06-2026, Bubble Wall Toilet Block and back, Mooloolah River, La Balsa Park, Buddina, Sunshine Coast, Queensland, Australia.

25 species sighted at Bubble Wall Toilet Block and back, Mooloolah River, La Balsa Park, Buddina, Sunshine Coast, Queensland, Australia. 20-06-2026.

A single shore entry dive with Gary, David and Sheryl of 249 minutes, 1.2 m, maximum depth 6.3 m, 20 C water temperature, up to 4 m viz.

With a 1.2 m tidal flow it was time to check out the Bubble Wall and Toilet Block area. Boy were there a lot of Nudibranchs, probably a thousand could be seen! Armina sp. 1 was recorded today and is a new species. There appears to be no rhinophores and the longitudinal ridges are branched and converge at the anterior end of the mantle, pretty cool! Collected two Coryphellina sp. 9 (Coryphellina davidparkeri) now I have 3 specimens. Not the clear winter water we expected but great non the less. Great dive!

Species and numbers recorded:

Armina sp. 1 -1 NEW SPECIES

Bulbaeolidia alba -3

Coryphellina lotos -100+

Coryphellina pseudolotos -80+

Coryphellina sp. 9 -2

Cratena lineata -100+

Cratea simba -3

Cratena pawarshindeorum -200+

Goniobranchus daphne -2

Goniobranchus setoensis -1

Goniodoridella unidonta -2