Julie, David, Terry and Gary on this excursion consisting of 1 x 85 minute and 1 x 77 minute dives in water depths up to 15.3 m, up to 10 m viz, 19 C water temp and surge.
With winds expected to be from the northeast we decided to park our ride on the south western side of Old Woman Island at a site we call the Wall. A feature of the island that is about 150 m or more long with the top at 5 m and the bottom at 15 m. We anchored on the sand in front of the wall and upon descent we immediately started recording Nudibranchs. The diving conditions were very nice and cruisey. Of note were 5 species each of Dermatobranchus and Goniobranchus. Our 753rd species was found on the sand, Hypselodoris sp. 7 with its cream-yellow colouration.
Number of each species sighted: 1st dive/2nd dive
* Species with highest specimen count
Berthella martensi 2/-
Bornella anguilla -/1
Cadlinella ornatissima -/1
Chromodoris kuiteri 1/2
Dermatobranchus oculus 1/6
Dermatobranchus rodmani 1/-
Dermatobranchus sp. 7 2/1
Dermatobranchus sp. 9 1/-
Dermatobranchus tuberculatus -/1
Doriprismatica atromarginata 2/2
Glossodoris rufomarginata 7/-
Glossodoris vespa 1/3
Goniobranchus albonares 1/1
Goniobranchus daphne 2/1
Goniobranchus geometricus -/1
Goniobranchus kuniei 3/1
Goniobranchus splendidus 2/3
Gymnodoris alba -/1
Hypselodoris jacksoni 2/-
Hypselodoris sp. 7 1/- NEW SPECIES
Nembrotha lineolata 1/-
Okenia hallucigenia -/1
Phyllidia ocellata 1/3
Phyllidiella annulata -/1
Phyllidiella lizae 1/-
Phyllidiella pustulosa 2/3
Phyllodesmium macphersonae 1/-
Phyllodesmium sp. 2 1/1
Pleurobranchus peronii 2/-
Pleurolidia juliae -/1
Pteraeolidia semperi 8/1
Sagaminopteron ornatum 1/-
Tenellia sp. 24 2/-
Thorunna daniellae 1/-
Thuridilla carlsoni 1/-
Thuridilla splendens 4/9
Trapania vitta 1/-
Tritoniopsis elegans 4/3
Verconia norba 3/-
Verconia simplex 3/2
Preparing our ride
Surface conditions
Substrate in front of the Wall
Pteraeolidia semperi
Dermatobranchus sp. 7
Dermatobranchus sp. 9
Hypselodoris sp. 7 NEW SPECIES in-situ
Hypselodoris sp. 7 NEW SPECIES
Pleurobranchus peronii
Thuridilla carlsoni
Dermatobranchus oculus
Thorunna daniellae
Doriprismatica atromarginata
Phyllodesmium sp. 2
Thuridilla splendens
Goniobranchus splendidus
Sagaminopteron ornatum
Goniobranchus albonares
Tritoniopsis elegans
Tritoniopsis elegans rhinophores
Tenellia sp. 24 pair
Dermatobranchus rodmani
Gymnodoris alba
Okenia hallucigenia
Chromodoris kuiteri
Goniobranchus kuniei mating
A slime of Glossodoris rufomarginata
Berthella martensi
Thuridilla splendens spotted form
Cadlinella ornatissima
Pleurolidia juliae
Okenia hallucigenia
Verconia simplex
Trapania vitta
Verconia norba
Goniobranchus geometricus
