Babelomurex glaber Kosuge, 1998

Oliverio, Marco, 2008, Coralliophilinae (Neogastropoda: Muricidae) from the southwest Pacific, Mémoires du Muséum national d'Histoire naturelle 196, pp. 481-586 : 529-530

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scientific name	Babelomurex glaber Kosuge, 1998
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Babelomurex glaber Kosuge, 1998 View in CoL

Figs 172, 213, 214

Babelomurex (Laevilatiaxis) glaber Kosuge, 1998: 83 View in CoL pl. 27, figs 1-3.

TYPE MATERIAL. — Holotype NM C6593 , 2 paratypes MNHN.

TYPE LOCALITY. — Off Shixini Point, 32°31.7’S, 028°52.7’E, 490 m, Transkei , South Africa GoogleMaps .

MATERIAL EXAMINED. — Loyalty Ridge. MUSORSTOM 6: stn CP 467, 21°05’S, 167°32’E, 575 m, 2 dd (paratypes MNHN) GoogleMaps .

Vanuatu. MUSORSTOM 8: stn CP 963, 20°20’S, 169°49’E, 400- 440 m, 1 dd (Fig. 214); stnDWP 988, 19°16’S, 169°24’E, 373- 466 m, 1dd; stn CP 1017, 17°53’S, 168°26’E, 294-295 m, 1dd (Fig. 213); stn DW 1094, 15°08’S, 167°12’E, 312-314 m, 1dd.

Fiji. BORDAU 1: stn DW 1441, 17°10’S, 178°42’W, 306-320 m, 1 dd; stn DW 1496, 18°43’S, 178°23’W, 392-407 m, 1 dd juv (Fig. 172).

Tonga. BORDAU 2: stn DW 1533, 21°44’S, 175°20’W, 322- 329 m, 1dd; stn DW 1536, 21°45’S, 175°21’W, 320-323 m, 2 dd; stn DW 1634, 21°45’S, 175°20’W, 321-322 m, 1 dd.

DISTRIBUTION. — South Africa (490 m) and the area between New Caledonia, Vanuatu and Tonga, empty shells in 295-575 m depth. No living specimens have been collected so far.

REMARKS. — Protoconch of 3 conical whorls, 710 Μm high, 690 Μm wide at the base. Protoconch-I of 0.9 whorls, sculptured with pustules over the entire surface. Protoconch-II of 2.1 whorls, with 2 spiral keels, sculptured by a series of subsutural prosocline threads and a series of tubercules over each keel. Threads on the last protoconch whorl tending to fuse into collabral ribs.

Babelomurex glaber differs from all known forms in the B. kawamurai (Kira, 1959) group (including those from other regions such as B. sentix (Bayer, 1971) from the Atlantic Ocean) by its smooth shell surface, devoid of obvious spiral sculpture, and by its sharp peripheral spines.

Babelomurex armatus (G.B. Sowerby [third of the name], 1912) Figs 73, 173

Latiaxis armatus G.B. Sowerby [third of the name], 1912: 472-473, fig. 2.

TYPE MATERIAL. — Undetermined type, possible syntype BMNH 1912.5.6.1, figured by Kosuge & Suzuki (1985: pl. 33, fig. 8) and Higo et al. (2001: 67, G2435).

TYPE LOCALITY. — South China Sea.

MATERIAL EXAMINED. — Japan. Unknown locality, 1 lv ( MO). South China Sea. Off Taiwan, trawlers, 100-200 m, 1 dd ( MO). Philippines. Panglao , Bohol, tangle net, 180-200 m, many lv and dd, from a dealer ( MO) .

Coral Sea. MUSORSTOM 5: stn 328, Plateau des Chesterfield, 20°23’S, 158°44’E, 340-355 m, 1 dd; stn 362, 19°53’S, 158°40’E, 410 m, 2 dd; stn 371, 19°55’S, 158°38’E, 350 m, 1 dd; stn 372, 19°53’S, 158°39’E, 400 m, 1 dd.

North of New Caledonia. LAGON:stn 497, Lagon Nord, 18°57’S, 163°28’E, 255 m, 1 dd; stn 500, 19°04’S, 163°30’E, 225 m, 1 dd; stn 1147, Secteur des Belep, 19°08’S, 163°30’E, 210 m, 3 dd.

New Caledonia proper. MUSORSTOM 4: stn DW 204, 22°37’S, 167°06’E, 120 m, 1 dd GoogleMaps . — BATHUS 3: stn DW 838, 23°01’S, 166°56’E, 400-402 m, 1 dd.

Norfolk Ridge. CHALCAL 2: stn DW 70, 24°46’S, 168°09’E, 232 m, 1 dd.

Loyalty Ridge. MUSORSTOM 6: stn CP 400, 20°42’S, 167°00’E, 270 m, 1 dd (Fig. 73); stn DW 417, 20°42’S, 167°04’E, 283 m,

3 dd; stn DW 423, 20°26’S, 166°41’E, 280 m, 1 dd; stn DW 473, 300 m, 1 dd (Fig. 173).

21°09’S, 167°55’E, 236 m, 1 dd; stn DW 480, 21°08’S, 167°56’E, Tonga. BORDAU 2: stn DW 1603, 22°12’S, 175°20’W, 189- 380 m, 1 dd. 196 m, 1dd.

Futuna. MUSORSTOM 7: stn DW 513, 14°13’S, 178°11’W, 260-

DISTRIBUTION. — Western Pacific : from Kii Peninsula , Japan, to South China Sea, Philippines, Australia, “ 30-150 m, rocks” (Higo et al. 1999: 219; Tsuchiya 2000: 407). Now extented to the Coral Sea, New Caledonia, Norfolk and Loyalty Ridges, Futuna Island and Tonga, empty shells in 120-410 m.

REMARKS. — Protoconch of 2.1 conical whorls, 700 Μm high, 790 Μm wide at the base. Protoconch-I of 0.8 whorls, sculptured with pustules over the entire surface. Protoconch-II of 1.3 whorls, with 2 spiral keels, sculptured by threads, nodulose over each keel. Threads prosocline between the suture and the adapical keel, then opisthocline, giving rise to chevron-shaped collabral ribs. The same protoconch form is shared by specimens from the Philippines and a topotypic shell (South China Sea, MO).