Thursday, August 16, 2018

Species List: 14-08-2018, Cobb's Reef, Caloundra, Sunshine Coast, Qld

22 species sighted at Cobb's Reef, Caloundra, Sunshine Coast, Qld, 14-08-2018.

Terry and Gary on this excursion consisting of 1 x 77 minute and 1 x 63 minute dives in water depths up to 18.6 m, 5-8 m viz, 19 C water temp and little surge.

Upon entering the water we found the viz had dropped off quite a bit. The undulating substrate made us work for our finds. The highlight was finding our 752nd species, Tritonia sp. 4. This little nudibranch has opaque white lines, we have never seen this before. Another great find, that we don't see very often, is Goniobranchus rufomaculatus. We did however literally run into a 200 mm Marionia rubra, yes is quite large.

This was the first dive outing this winter where the water dipped to 19 C.

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

Aegires villosus -/1
Chromodoris striatella -/1
Dermatobranchus oculus -/1
Dermatobranchus ornatus -/1
Dermatobranchus rodmani 1/-
Flabellina exoptata 1/-
Flabellina rubrolineata 1/-
Glossodoris vespa 1/-
Goniobranchus daphne -/1
Goniobranchus sp. 4 1/-
Goniobranchus sp. 6 3/-
Goniobranchus rufomaculatus 1/-
* Goniobranchus splendidus 4/11
Hypselodoris jacksoni -/1
Hypselodoris obscura 1/-
Hypselodoris sagamiensis -/1
Marionia rubra -/1
Phyllidia ocellata -/1
Tritonia sp. 4 1/- New Species
Tritoniopsis elegans 1/-
Tyrannodoris luteolineata 3/1
Verconia simplex 1/-

Surface conditions

Substrate

Goniobranchus sp. 6

Goniobranchus splendidus

Tritonia sp. 4 NEW SPECIES

Tyrannodoris luteolineata

Goniobranchus sp. 6

Dermatobranchus rodmani

Goniobranchus rufomaculatus

Hypselodoris obscura

Tritoniopsis elegans

Verconia simplex

Goniobranchus sp. 6

Marionia rubra

Hypselodoris jacksoni

Marionia rubra rhinophore

Goniobranchus sp. 4

Goniobranchus splendidus

Goniobranchus daphne

Phyllidia ocellata

Aegires villosus

Chromodoris striatella

Hypselodoris sagamiensis

Goniobranchus splendidus

Dermatobranchus oculus

Goniobranchus splendidus

Tritonia sp. 4 NEW SPECIES

Goniobranchus rufomaculatus

Dermatobranchus ornatus