Shells of South
East Queensland

Tweed Heads to Noosa
Cypraeidae

Bistolida stolida

(Linnaeus, 1758)
Shell: moderately small, solid, oblong ovate, ranging from 23-32 mm. Spire concealed. Teeth: 15 to 18 columellar teeth; 18 to 20 labral teeth. Sculpture: smooth, porcelaneous. Exterior colour blue-grey with indistinct brown spots and a large irregular central brown blotch; base yellowish with indistinct brown spots on sides; light orange blotches on each side of the anterior and posterior.


Specimens

Subspecies: Bistolida stolida lorrainae  Lorenz, 2017
Queensland. Teeth unstained, shorter; spire exposed, umbilicate; blotches on margin reduce and often not connected to the dorsal blotch.
Big Sandy Reef 21-546,  Australia
Size: 23.96mm    Collected: Unknown
Collected from under rubble at 8 m.
Unspotted shell
forma: dampieria  Raybaudi, 1992
Teeth finer, unstained; extremities less rostrate; columellar teeth shorter anteriorly.
Broome,  Australia
Size: 24.12mm    Collected: Unknown
Collected from sand and rubble on exposed sand bars at extreme low tide [-0.5m].
fine teeth, short anterior  
Subspecies: Bistolida stolida crossei  (Marie, 1869)

Grand Central Station,  Solomon Islands
Size: 27.12mm    Collected: Unknown
Collected from reef at 5m by diver.

Subspecies: Bistolida stolida crossei  (Marie, 1869)

Uepi Point,  Solomon Islands
Size: 23.69mm    Collected: Unknown
Collected from reef at 5m by diver.

Rabaul,  Papua New Guinea
Size: mm    Collected: 1989
No data.

Subspecies: Bistolida stolida crossei  (Marie, 1869)

New Caledonia,  New Caledonia
Size: 26.57mm    Collected: Unknown
No data

Mactan Island,  Philippines
Size: 28mm    Collected: Unknown
Collected from 9m.

Bohol,  Philippines
Size: 23.4mm    Collected: 2015
Collected from walls of cave at night 15-20m by local collectors. bought 8/4/15

Nocnocan Island,  Philippines
Size: 32.08mm    Collected: Unknown
Collected from 2-20m by hookah diver.

Wreck Of Hatsu Taka,  Malaysia
Size: 26.11mm    Collected: Unknown
Collected from under steel plates on wreckage of Japanese mine laying ship 

Samar Island,  Philippines
Size: 32.06mm    Collected: Unknown
No data.

Subspecies: Bistolida stolida brianoi  Lorenz, 2002
Madagascar. Curved aperture; columellar teeth restricted to aperture or extending onto base as feint ridges towards the posterior. Sparse and finer marginal spotting.
Nosy Be,  Madagascar
Size: 28.34mm    Collected: Unknown
Collected from dead coral at 20-22 m by scuba diver.

Subspecies: Bistolida stolida clavicola  Lorenz, 1998
East Africa. Dorsal profile slightly flattened; base plain white; fine spotting on the margins teeth rarely reddish.
Zanzibar,  Tanzania
Size: 30.2mm    Collected: Unknown
No data

Subspecies: Bistolida stolida clavicola  Lorenz, 1998
East Africa. Dorsal profile slightly flattened; base plain white; fine spotting on the margins teeth rarely reddish.
Bajuni Island,  Somalia
Size: 24.45mm    Collected: Unknown
Collected from under rocks and sponge by scuba diver.

The Gneerings off Mooloolabah,  Australia
Size: mm    Collected: 1989
Collected by diver. Courtesy S Grail.