Nudibranch Central

Sunday, October 7, 2018

Species List: 06-10-2018, Bornella Reef, Old Woman Island, Mudjimba, Sunshine Coast, Qld

32 species sighted at Bornella Reef, Old Woman Island, Mudjimba, Sunshine Coast, Qld, 06-10-2018.

David and Gary on this excursion consisting of 1 x 87 minute and 1 x 73 minute dives in water depths up to 14.9 m, up to 10 m viz, 21 C water temp.

Today the winds looked to be from the north so we thought we would try Old Woman Island again. It didn't look too bad except for the rain and clouds. On the bottom there was surge so let the challenge of recording Nudibranchs begin.

As usual Doriprismatica atromarginata was the most prevalent with Thuridilla splendens right behind. The highlight for me was after tying off the reel and approaching the wll we came across a mating pair of Ardeadoris rubroannulata...it's going to be a good dive! Dispite the surge the two of us managed to record 32 species.

Number of each species sighted: 1st dive/2nd dive
* Species with highest specimen count

Ardeadoris rubroannulata 2/-
Berthella martensi -/1
Berthellina citrina 1/-
Bornella anguilla 2/3
Dermatobranchus sp. 7 1/-
Dermatobranchus sp. 9 1/-
* Doriprismatica atromarginata 12/3
Flabellina rubrolineata 1/-
Goniobranchus albonares -/2
Goniobranchus decorus 1/1
Goniobranchus splendidus 4/2
Goniobranchus verrieri juvenile -/1
Hexabranchus sanguineus -/1
Hypselodoris jacksoni 2/-
Hypselodoris obscura 2/1
Mariaglaja inornata 2/-
Marionia sp. 5 -/1
Phyllidia elegans -/1
Phyllidia ocellata 2/1
Phyllidia varicosa 2/-
Phyllidiella lizae 1/-
Phyllidiella pustulosa 1/-
Pleurobranchus peronii 2/-
Pteraeolidia semperi 2/-
Sagaminopteron ornatum 2/-
Tambja tenuilineata -/1
Tenellia sibogae -/2
Thuridilla albopustulosa -/1
Thorunna daniellae 1/-
Thuridilla splendens 8/2
Tornatina sp. 4 -/1
Tritoniopsis elegans 2/3

Getting ready to go diving!

Old Woman Island

Pteraeolidia semperi

Mating pair of Ardeadoris rubroannulata

Goniobranchus splendidus

Substrate

Thuridilla splendens

Mariaglaja inornata

Substarte

Doriprismatica atromarginata

Phyllidiella lizae

Tritoniopsis elegans

Pleurobranchus peronii

Flabellina rubrolineata

Phyllidiella pustulosa

Phyllidia varicosa

Goniobranchus decorus and Berthellina citrina

Phyllidia ocellata

Sagaminopteron ornatum

Thorunna daniellae

Dermatobranchus sp. 7

Hexabranchus sanguineus

Berthella martensi

Goniobranchus splendidus

Hypselodoris obscura

Bornella anguilla

Marionia sp. 5

Tenellia sibogae

Goniobranchus decorus

Phyllidia elegans

Thuridilla albopustulosa

Pleurobranchus peronii

Goniobranchus splendidus

Goniobranchus albonares

Goniobranchus verrieri juvenile

Marionia sp. 5

Tambja tenuilineata

Thuridilla albopustulosa

Species List: 04-10-2018, The Trench, Mooloolaba, Sunshine Coast, Qld

37 species sighted at The Trench, Mooloolaba, Sunshine Coast, Qld, 04-10-2018.

Julie, Terry, David and Gary on this excursion consisting of 1 x 77 minute and 1 x 59 minute dives in water depths up to 18.5 m, up to 15 m viz, 21 C water temp.

After making our way to Old Woman Island we found many surfers surfing which put us all off so we steamed over to The Trench. It has been a while since we dived here so off we went. The wind direction placed us on the south side of the gutter.

As we descended the chain with my eyes sweeping the substrate there in a groove was Aegires minor. I was pleasently surprised since this species is very tropical. We never thought we would find it in our region. Another species we thought we would never see here is Phyllidiopsis shireenae with our second sighting. A little blue juvenile Nembrotha purpureolineata has us all excited as well.

Number of each species sighted: 1st dive/2nd dive
* Species with highest specimen count

Aegires gardineri 1/-
Aegires minor 1/- NEW SPECIES
Bornella anguilla 1/-
Cadlinella ornatissima -/1
Chromodoris elisabethina 2/3
Chromodoris kuiteri 2/3
Chromodoris strigata 1/-
Cratena simba -/1
Dermatobranchus ornatus 1/-
Dermatobranchus sp. 8 -/1
Dermatobranchus tuberculatus -/1
Doriprismatica atromarginata 13/3
Glossodoris rufomarginata 2/2
Goniobranchus sp. 6 1/-
Goniobranchus splendidus 4/2
Hexabranchus sanguineus 1/-
Hypselodoris emma 1/-
Hypselodoris jacksoni 3/3
Hypselodoris obscura 2/2
Hypselodoris sp. 2 1/1
Hypselodoris sp. 4 – 1/-
Nembrotha purpureolineata juvenile -/1
Phyllidia ocellata 1/2
Phyllidia picta 1/-
Phyllidia varicosa -/1
Phyllidiella annulata 2/-
Phyllidiella pustulosa 1/2
Phyllidiopsis burni 1/1
Phyllidiopsis shireenae -/1 Second sighting
Pleurolidia juliae 2/-
Pteraeolidia semperi 1/-
Tambja tenuilineata -/1
* Thuridilla splendens 13/6
Tritoniopsis elegans -/1
Tyrannodoris luteolineata 2/1
Verconia simplex 1/-
Verconia sp. 2 1/-