Shell: moderately small to medium, heavy, ovate , ranging from 25-80 mm.
Spire partially covered by outer tip. Teeth: 22 to 25 columellar teeth; 21 to 22 labral teeth.
Sculpture: smooth, porcelaneous; margins thickened and calloused.
Aperture elongate, narrow, slightly wider at anterior.
Exterior colour blue grey background crossed by diffuse brown chevron bands centrally and at each end; dorsum overlaid with network of dashes, lines and hieroglyphs interrupted by clear space; base cream; teeth highlighted brown; margins cream with heavy spotting towards the dorsum. Mantle line distinct.
Specimens
Amity Point, Australia Size: 50.91mm Collected: Unknown Collected from under intertidal rock on rock wall at low water mark on 0.4m tide.
Alexandra Headland, Australia Size: 25mm Collected: Unknown Dead collected. Juvenile specimen.
Alexandra Headland, Australia Size: 50.93mm Collected: Unknown Collected on rock platform at low tide.
Amity Point, Queensland, Australia Size: 63.32mm Collected: Unknown Collected from under rocks on rock wall at 3 m by scuba diver.
Myora light, Australia Size: 56.87mm Collected: 1989 under rocks and coral clumps in 10cm of water on sand flats 0.4m tide juvenile specimen
Flat Rock, Australia Size: 54.23mm Collected: 2000 found dead in 15m of water on rock reef
Caloundra [Nth Headland], Australia Size: 65.98mm Collected: 1987 found under a rock on rocky reef at low tide. The area is in the wave crash zone at high tide level
Sykes Reef, Australia Size: 52.12mm Collected: 2019 On intertidal reef under dead coral slab. Extreamly common in the area
Wilson Island, Australia Size: 54.32mm Collected: 1997 Under rocks on intertidal reef at low tide.
Spider Bay, Australia Size: 64.29mm Collected: Unknown Collected from under algae covered rocks and coral slabs on slightly silty rock and coral reef at 2-3 m by hand [low tide] at extreme low tide [-0.2m].
Erskine Island, Queensland, Australia Size: 55.85mm Collected: Unknown Collected on intertidal coral reef by hand [low tide]. Collected by Robert Ellis 29/8/2003
Gould Reef, Queensland, Australia Size: 48.61mm Collected: Unknown Collected from under coral slabs on intertidal coral reef by hand [low tide]. Collected by Robert Ellis 17/8/2001
Lamont Reef, Queensland, Australia Size: 52.83mm Collected: Unknown Collected from under coral slabs on intertidal coral reef by hand [low tide]. Collected by Robert Ellis 12/8/2010
Lamont Reef, Queensland, Australia Size: 50.38mm Collected: Unknown Collected from under coral slabs on intertidal coral reef by hand [low tide]. Collected by Robert Ellis 8/9/1998
Tryon Island, Queensland, Australia Size: 60.91mm Collected: Unknown Collected on intertidal coral reef by hand [low tide]. Collected by Robert Ellis 10/8/1990
forma: westralis Cate, C.N., 1964 Finucane Island, Australia Size: 50.95mm Collected: Unknown Collected from exposed muddy, rocky reef at low tide. Western Australian form.
Uepi- Dive Jetty, Solomon Islands Size: mm Collected: 2000 found dead in sand on coral reef in 15m of water
General Store, Solomon Islands Size: mm Collected: 2000 found dead on coral reef in 10meters of water
Gemo Island, Papua New Guinea Size: 43.97mm Collected: 1983 found under exposed algea covered rocks on the shoreline of the island Many C. arabica present
Man Friday Resort, Fiji Size: 45.27mm Collected: 1997 found dead on coral reef in 3 meters of water
Subspecies: Mauritia arabica asiatica Schilder & Schilder, 1939 slightly flattened dorsum; flattened, greyish base; fiiner, crowded marginal spotting Kudat, Malaysia Size: 40.11mm Collected: 2004 intertidal on volcanic rock collected 2004
Katori Maru Wreck, Malaysia Size: 76.02mm Collected: Unknown Collected from amongst rubble and steel plates of ship at 12-15m. Ship sank in Dec 1941 This form from deepish water in the Sth China Sea. Very large, inflated; base distinctly concave; angular margins; dorsum finely reticulate.
Subspecies: Mauritia arabica asiatica Schilder & Schilder, 1939 slightly flattened dorsum; flattened, greyish base; fiiner, crowded marginal spotting Cam Ranh Bay, Vietnam Size: 58.52mm Collected: 2017 No data
Subspecies: Mauritia arabica asiatica F. A. Schilder & M. Schilder, 1939 slightly flattened dorsum; flattened, greyish base; fiiner, crowded marginal spotting Phuket, Thailand Size: 55.39mm Collected: Unknown Collected from amongst boulders and coral rubble at 1-2m.
Subspecies: Mauritia arabica asiatica Schilder & Schilder, 1939 slightly flattened dorsum; flattened, greyish base; fiiner, crowded marginal spotting Pamban, India Size: 44.3mm Collected: Unknown Collected from shallow water on rocky shore.
Subspecies: Mauritia arabica asiatica F. A. Schilder & M. Schilder, 1939 slightly flattened dorsum; flattened, greyish base; fiiner, crowded marginal spotting galle, Sri Lanka Size: 32.5mm Collected: Unknown Collected from under boulders at 2-3m. Dwarf specimen34.24
Subspecies: Mauritia arabica immanis F. A. Schilder & M. Schilder, 1939 Mostly larger and broader, not humped; larger more confluent marginal spotting; base flat, dark purple Toliara, Madagascar Size: 80.92mm Collected: Unknown Collected from under rock slabs on flat reef at 8-10m by local collectors
Subspecies: Mauritia arabica immanis F. A. Schilder & M. Schilder, 1939 Mostly larger and broader, not humped; larger more confluent marginal spotting; base flat, dark purple Grande Bay, Mauritius Size: 75.07mm Collected: Unknown Collected from under black rocks on coral slope at 8-12m.
