New Zealand Shells: Polyplacophora, Scaphopoda, and Cephalopoda

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Chitons (POLYPLACOPHORA)

See more, including living specimens, at iNaturalistNZ

ACANTHOCHITONIDAE

Acanthochitona zelandica
A.C.F.An.E. from 0-30m, grow to 35mm
Acanthochitona zelandica (amplificatus form)
A.C.F.An.E. from 0-30m, grow to 35mm
Cryptoconchus porosus
A.C.F.M.E. from 0-20m, grow to 84mm
Cryptoconchus porosus
A.C.F.M.E. from 0-20m, grow to 84mm
Pseudotonicia cuneata
A.C.E. from 0-10m, grow to 42mm
Notoplax violacea
A.C.F.M.E. at low tide, grow to 60mm
Notoplax mariae
A.C.F.E. from 0-50m, grow to 40mm
Notoplax rubiginosa
A.C.F.M.E. from 10-100m, grow to 30mm
MOPALIIDAE

Plaxiphora caelata
K.A.C.F.M.E. on mid to low tide rocks, grow to 45mm
Plaxiphora caelata (schauinslandi form)
K.A.C.F.M.E. on mid to low tide rocks, grow to 45mm
Plaxiphora obtecta
A.C.F.E. intertidal, grow to 90mm
Plaxiphora biramosa
A.C.F.M.An.E. on low tide rocks, grow to 60mm
Plaxiphora egregia
C.F.E. under the holdfast of giant kelp, grow to 26mm
Plaxiphora boydeni
C.F.M.An.E. on low tide rocks, grow to 15mm
CHITONIDAE

Rhyssoplax aerea
A.C.F.An.E. from 0-5m, grow to 42mm
Rhyssoplax aerea (huttoni form)
A.C.F.An.E. from 0-5m, grow to 42mm
Rhyssoplax stangeri
A.C.F.E. from 0-40m, grow to 20mm
Rhyssoplax canaliculata
A.C.F.M.E. from 5-100m, grow to 30mm
Rhyssoplax sp.
Unknown

Chiton glaucus
A.C.F.E. intertidal, grow to 55mm
Sypharochiton pelliserpentis
A.C.F.M. above mid tide, grow to 45mm
Sypharochiton sinclairi
A.C.F.E. at low tide, grow to 40mm
Onithochiton neglectus
A.C.F.M.An.E. from 0-50m on rocks, grow to 50mm
Onithochiton neglectus (opiniosus form)
A.C.F.M.An.E. under giant kelp holdfasts, grow to 32mm
ISCHNOCHITONIDAE, LORICIDAE

Ischnochiton maorianus
A.C.F.M.E. intertidal, grow to 45mm
Ischnochiton maorianus
A.C.F.M.E. intertidal, grow to 45mm
Ischnochiton maorianus
A.C.F.M.E. intertidal, grow to 45mm
Ischnochiton circumvallatus
F.An. intertidal, grow to 22mm
Lorica haurakiensis
A.C.F.E. from 0-50m, grow to 50mm
LEPTOCHITONIDAE, CALLOCHITONIDAE

Leptochiton inquinatus
A.C.F.An.E. under intertidal stones, grow to 15mm
Callochiton crocinus
A.C.F. under low tide stones, grow to 36mm
Eudoxochiton nobilis
K.A.C.F.E. intertidal, grow to 115mm
Eudoxochiton nobilis (huttoni form)
K.A.C.F.E. intertidal, grow to 115mm

Tusk Shells (SCAPHOPODA)


DENTALIIDAE

Antalis nana
A.C.F.E. from 10-700m, grow to 47mm
Fissidentalium zelandicum
A.C.F.M.E. from 50-1200m, grow to 105mm
Antalis suteri
C.F.M.E. from 30-500m, grow to 46mm
Antalis maestratii
A. from 400-1100m, grow to 80mm
GADILIDAE

Cadulus teliger
A.C.F.M.An.E. from 15-360m, grow to 6mm
Siphonodentalium delicatulum
A.C.F.M.E. from 40-700m, grow to 14mm

Cephalopods (CEPHALOPODA)


ARGONAUTIDAE, NAUTILIDAE

Argonauta nodosus
K.A.C.F.M. from 10-40m, grow to 249mm
Argonauta nodosus (tuberculatus form)
K.A. from 10-40m, grow to 150mm
Argonauta argo
K.A.C. from 10-40m, grow to 202mm
Argonauta hians
K.A. from 10-40m, grow to 60mm
Nautilus macromphalus
K.A. drifted from New Caledonia, grow to 138mm
SPIRULIDAE, SEPIIDAE

Spirula spirula
K.A.C.F.M. wash up on beaches, grow to 25mm
Sepia sp.
K.A.C.F.M.An. wash up on beaches, grow to 300mm