Nudibranch Central: June 2025

Wednesday, June 25, 2025

Species List: 25-06-2025, Rotunda, Mooloolah River, La Balsa Park, Buddina, Sunshine Coast, Queensland, Australia.

7 species sighted at Rotunda, Mooloolah River, La Balsa Park, Buddina, Sunshine Coast, Queensland, Australia. 25-06-2025.

A single solo shore entry dive with Gary of 60 minutes, 1.3 m, maximum depth 4.7 m, 22 C water temperature, up to 4 m viz.

This early morning dive was for 60 minutes, find all I could and do studies of Cratena pawarshindeorum. Trying to determine if there might 3 species in this group.

Species and numbers recorded:

Coryphellina lotos -9

Cratena pawarshindeorum -100+

Goniodoridella savignyi -1

Goniodoridella unidonta -1

Gymnodoris sp. 10 -1

Liloa brevis shell -1

Murphydoris cobbi -7

Surface

Coryphellina lotos x2

Cratena pawarshindeorum ?

Coryphellina lotos

Cratena pawarshindeorum ?

Coryphellina lotos x2

The Cable

The Icon

Gymnodoris sp. 10

Cratena pawarshindeorum ?

Goniodoridella unidonta

Murphydoris cobbi

Cratena pawarshindeorum ?

Goniodoridella savignyi

Murphydoris cobbi

Cratena pawarshindeorum ?

Murphydoris cobbi

Float

Substrate

Surface upon ascent

Cratena pawarshindeorum ?

Friday, June 20, 2025

Species List: 19-06-2025, Route 66 and back, Mooloolah River, La Balsa Park, Buddina, Sunshine Coast, Queensland, Australia.

16 species sighted at Route 66 and back, Mooloolah River, La Balsa Park, Buddina, Sunshine Coast, Queensland, Australia. 19-06-2025.

A single solo shore entry dive with Gary of 155 minutes, 1.4 m, maximum depth 5.4 m, 22 C water temperature, up to 10 m viz. There was another diver in the water and he found some *nice ones.

The winter water is here! With up to 10 m vis there was plenty to see. Richard Borland was also diving and found some nice species we have not seen in quite a while, Goniobranchus geometricus and Plocamopherus tilesii. Cratena pawarshindeorum continues to dominate the river, for the life of me what are they eating?? Nice to find a Christmas Tree hydroid with a single small juvenile Myja sp. 1 and spawn. Coryphellina sp. 9 has not been seen in a long time, so colourful.

Species and numbers recorded:

Bulbaeolidia alba -1

Coryphellina lotos -7

Coryphellina pseudolotos -1

Coryphellina sp. 9 -1

Cratena lineata -2

Cratena pawarshindeorum -200+

*Goniobranchus geometricus -1

Goniodoridella unidonta -1

Liloa brevis shell -1

Murphydoris cobbi -7

Murphydoris sp. 11 -1