Guide to Shells of Papua New Guinea

acute spire angulate anteriorly aperture aperture narrow aperture ovate aperture white axial and spiral axial cords axial ribs axial streaks basal blotches body whorl Bohol brown bands Camotes Sea Cebu Chicoreus columella columella smooth Conus Costellaria crenulate Cymatium Cypraea deep denticles DISTRIBUTION Eastern Samar elongate gastropods Gmelin Helicostyla impressed sutures inflated interspaces Lamarck limited quantity LINNAEUS Linné lip thin lirate Mitra moderately nodules nodulose off-white orange outer lip margin outer lip thick Palawan pale Philippines in limited posterior Prosobranchia Pterynotus Punta Engaño reaches 25mm reaches 40mm recurved Reeve Röding rows sculptured with numerous sharply angled Shell large Shell medium sized Shell small shoulder siphonal canal slightly Sowerby species specimens spines spiral cords spiral grooves spiral lirae spiral threads spire whorls Sporadically found throughout subsutural Sulu Archipelago Sulu Sea surface sutures tall spire Tayabas Bay Terebra throughout the Philippines umbilicus umbones valve varices Vexillum Visayan Sea weakly white in colour