SEA SLUGS

AND  OTHER  MARINE  INVERTEBRATES  OF  THE  TWEED - BYRON  COAST,  AUSTRALIA.

MOLLUSCA

CLASS : GASTROPODA
SUBCLASS : PROSOBRANCHIA

FAMILY : PTEROTRACHEIDAE
Firoloida desmaresti - Brunswick River


SUBCLASS : PULMONATA

FAMILY : ONCHIDIIDAE - Onchidiids are true slugs lacking an internal shell. The family is in need of revision with identification difficult. In the Brunswick River system they can be found in many habitats, at the base of mangrove trees in mud, along the riverbank on rocks and on fallen trees, and at the back of mangrove areas at the upper tide mark. With considerable variation in appearance depending on where they are found, it is hard to determine how many species there are in the Brunswick but I believe there is at least four or five.
Species? - Brunswick River
Platevindex sp - Brunswick River
Onchidium daemellii? - Brunswick River
Onchidina australis - Brunswick River
Peronea sp - Brunswick River

FAMILY : SIPHONARIIDAE
Siphonaria denticulata - Brunswick River
Siphonaria funiculata - Brunswick River

FAMILY : TRIMUSCULIDAE
Trimusculus conicus - Brunswick Heads beach

FAMILY : PHALLOMEDUSIDAE
Phallomedusa solida - Brunswick River

FAMILY : ELLOBIIDAE 
Cassidula nucleus - Brunswick River
Cassidula zonata - Brunswick River
Cassidula doliolum - Brunswick River
Pleuroloba quoyi - Brunswick River
Ophicardelus sulcatus - Brunswick River
Ophicardelus ornatus - Brunswick River
Laemodonta typica - Brunswick River
Laemodonta punctigera - Brunswick River
Leuconopsis inermis - Brunswick River
Marinula xanthostoma - Hastings Point
Melampus granifer - Brunswick River
Melampus - Brunswick River
Melampus - Brunswick River


The following 3 species are more tropical and were found in 2004 after a very
long dry period. They have not been seen since.

Melampus luteus - Brunswick River
Melampus fasciatus - Brunswick River
Melampus flexuosus - Brunswick River

 


CLASS : POLYPLACOPHORA

FAMILY : CHITONIDAE
Acanthopleura gaimardi - Hastings Pt. & Brunswick R.
Onithochiton quercinus - Hastings Point

FAMILY : ISCHNOCHITONIDAE
Callochiton crocinus - Hastings Point
Callistochiton antiquus - Hastings Point
Haploplax sp - Hastings Point
Heterozona fructicosa - Hastings Point
Heterozona sp - Hastings Point
Ischnochiton australis - Hastings Point
Ischnochiton elongatus - Hastings Point

FAMILY : CRYPTOPLACIDAE
Cryptoplax mystica - Hastings Point

FAMILY : ACANTHOCHITONIDAE
Acanthochitona bednalli? - Brunswick River
Acanthochitona sp? - Brunswick River
Acanthochitona sp? - kelp holdfast, Ocean Shores beach
Acanthochitona sp? - on pumice
Acanthochitona sp? - on pumice
Acanthochitona sp - Hastings Point



CLASS : CEPHALOPODA

FAMILY : OCTOPODIDAE
Octopus tetricus - Brunswick River
Octopus sp - Hastings Point
Hapalochlaena fasciata - Brunswick River
Juvenile Octopus sp - Brunswick River
Species? - Hastings Point

FAMILY : IDIOSEPIIDAE
Idiosepius pygmaeus - Brunswick River

FAMILY : ?
Juvenile species? - Brunswick River

FAMILY : SPIRULA
Spirula spirula - Brunswick Heads beach

FAMILY : SEPIIDAE
Sepia plangon - Gold Coast Seaway

 

© All images Copyright 2016 Denis Riek. All rights reserved.