Nebularia fraga: Shell up to 48 mm (about 2 inches) in length, but generally from 15-35 mm (0,75-1,5 inches) in length, elongate ovate to roundly-ovate, solid, sutures weakly impressed. Whorls 6-8, apart from protoconch of 2 glassy-white nuclear whorls, spire whorls flat-sided or slightly convex, frequently angulate or subangulate at the sutures; sculptured with elevated and angulate spiral cords which number from 3-6 on the penultimate and from 13-18 on the body whorl. The cords are occasionally undulate on the body whorl by the appearance of weak longitudinal folds, the intervening spiral grooves are deep and "V"-shaped and axially striate; the sutural spiral cord is frequently smaller than the succeeding cords. Aperture about equal in height or longer than the spire, moderately narrow and smooth within; outer lip thickened, regularly convex and crenulate at the margin in adult specimens. Columella calloused, especially anteriorly and sometimes only glazed on the parietal wall, and with 4-5, rarely 3, oblique folds; siphonal fasciole calloused, straight or recurved, siphonal notch distinct. Fresh specimens are uniformly dark reddish-brown in colour, but are frequently ornamented with a few or numerous, cream, yellow or orange spots upon the spiral cords; specimens from the Red Sea are creamy-yellow and spotted on the cords with reddish-brown. The aperture and columella are greyish-white, but frequently flushed with orange-brown. Periostracum thin, orange-brown and moderately translucent. Height 45.8 mm, Width 19.0 mm; Height of aperture 24.6 mm

Nebularia fraga: Range—Red Sea to Polynesia and the Hawaiian Islands.
Records—RED SEA: Eilat, Gulf of Aqaba (Hadar coll.; Clover coll.; Peled coll.); Gulf of Suez (Jickeli, 1874). INDIAN OCEAN ISLANDS: Mauritius (USNM); N. end of Pulo Siput, Cocos-Keeling I. (USNM). THAILAND: Goh Phi Phi (USNM). INDONESIA: Marudu Bay, N. Borneo; Pulau Bay, Batu group, off Sumatra; Kelediitan, Bantam, Java (all USNM); W. coast of Gomumu I., S. of Obi I. (WAM). PHILIPPINE ISLANDS: Pangangon I., Bohol (Steiner coll.); Boac, Marinduque (Lumawig coll.); Davao, Mindanao; Tobigui, Marinduque (both USNM); Masbate Island; Ticao Island (both AMNH); Zambales, Luzon; Cebu Island (both Clover coll.); Banan, Batangas Bay; Siasi I., Sulu (both Cernohorsky coll.). CHINA: Whampoa (USNM). RYUKYU ISLANDS: Okinawa (USNM). JAPAN: Osima, Osumi (USNM). MARIANAS: Apra Harbour, Guam I.; Saipan Island (both USNM); Nimitz beach, Guam I. (Cernohorsky coll.); Oca Point, Gaum (MCZ). MARSHALL ISLANDS: Tieroru, Eniwetok Atoll; Roggutou, Rongelap Atoll; Kwajalein Atoll (all USNM). NEW GUINEA: Taurama beach, Port Moresby (Hinton coll.); Ela beach, Port Moresby (Kleckham coll.); near Hollandia (USNM). AUSTRALIA: S. end of Flacourt Bay, 20°46'S & 115°21'E, W. Australia (WAM); Shelly Beach, Caloundra, Queensland (Powell coll.); New South Wales (Laseron, 1951). NEW BRITAIN: Rabaul (McCollim coll. Buick coll.). SOLOMON ISLANDS: Ugi Island; Pavuvu I., Russell Strait (both USNM); Marau Sound, Guadalcanal (Cernohorsky coll.). NEW HEBRIDES: Palikulo Bay, Espiritu Santo (USNM); Port Havannah, N.E. Efate I. (Debant coll.); Pango Point, Efate I.; Bushmens Bay, Malekula I. (both AIM); Meli Bay, S.W. Efate I.; Malapoa Point, Vila Harbour, Efate I.; Ure I., opposite E. coast of Malekula I. (all Cernohorsky coll.). ROTUMA ISLANDS: Tuakoi Point (USNM). GILBERT ISLANDS: Apamama (USNM). FIJI ISLANDS: Bay of Islands, Suva Harbour, S. Viti Levu, 8 faths. (Hill coll.; Cernohorsky coll.); Viti Levu Bay, N.E. Viti Levu; Akuilau I., Nadi Bay, W. Viti Levu, 15 faths.; Caboni beach, N.E. Viti Levu (all Cernohorsky coll.). TONGA ISLANDS: Nukualofa, Tongatapu (Gay coll.; Cernohorsky coll.). SAMOA ISLANDS: outer reef at Apia, Upolu I.; Asili, Tutuila I.; Pago Pago (all USNM); Apia Harbour, Upolu I. (Cernohorsky coll.). COOK ISLANDS: (Clover coll.). SOCIETY ISLANDS: Hot Tipaemano, Raiatea (USNM). LINE ISLANDS: Palmyra Island (USNM). HAWAIIAN ISLANDS: off Kewalo, Oahu (BPBM). MIDWAY ISLANDS: (USNM).