Shells of South
East Queensland

Tweed Heads to Noosa
Cassidae

Semicassis bisulcata

(Schubert & J. A. Wagner, 1829)
Shell: moderately small to medium, ranging from 33-64 mm.


Specimens

forma: japonica  (Reeve, 1848)

Gold Coast,  Australia
Size: 61.3mm    Collected: 2003
On sand and mud 90-100 m depth Taken by prawn trawlers.

Fraser Is,  Australia
Size: 47mm    Collected: 2012
Trawled from 120m depth.

Cape Moreton,  Australia
Size: 61mm    Collected: 2016
Trawled from 117 m [65 fthms]. Collected February 2016

Sandy Cape,  Australia
Size: 60mm    Collected: Unknown
trawled

Ella Bay,  Australia
Size: 38mm    Collected: 2016
Trawled

forma: diuturna  (Iredale, 1927)

Ramsay Bay,  Australia
Size: mm    Collected: 2016
No data.

forma: persimilis  Kira, 1955

Hummock Hill Island,  Australia
Size: 53.5mm    Collected: Unknown
Trawled

Ramsay Bay,  Australia
Size: mm    Collected: 2016
No data.

Gladstone,  Australia
Size: 33mm    Collected: Unknown
Trawled

Tin Can Bay,  Australia
Size: 55mm    Collected: Unknown
Trawled from 117m [65 fthms]

forma: diuturna  (Iredale, 1927)

Cassini Island,  Australia
Size: 53.3mm    Collected: Unknown
On sand at night. 25-35 metres depth. Taken by diver.

forma: booleyi  (G. B. Sowerby III, 1900)

Nocnocan Island,  Philippines
Size: 53.9mm    Collected: 2016
taken by diver in 20m collected December 2016

forma: Pila  (Reeve, 1844)

Bohol,  Philippines
Size: 45.5mm    Collected: Unknown
taken in tangle nets

forma: japonica  

Mikawa Bay,  Japan
Size: 64mm    Collected: Unknown
Trawled from 30-50m.

Parangipettai,  India
Size: 49.7mm    Collected: Unknown
On sandy mud 24-40 metres depth. Trawled by local shrimp boats.