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Species / Margistrombus Robustus

Stromboidea


Original Description of Strombus robustus by Sowerby, 1875, p. 599:

  • "S. testa conica, solida, ventricosa, caeruleo-alba, castaneo zonata et maculata; spira parviuscula acuta; anfractibus noduloso-angulatis, superne spiraliter striatis; anfractu ultimo in medio fere laevi, deinde versus marginem conspicue striato, ad basin sulcato; apertura elongata, canali superne spiram ascendente; columella callosa, alba, obsolete lirata; labio externo emarginato, intus lirato: long. 48, lat. 31 mill. Var. testa luteo-fusco fasciata."
  • "Shell conoid, solid, ventricose, bluish white, banded and blotched with dark brown; spire rather short, acute; whorls angulated and noduled at the angle, spirally striated above; last whorl almost smooth in the middle, then towards the margin conspicuously striated, grooved at the base; aperture elongated, with a canal at the upper part, running up the spire; columella furnished with a thickened white enamel, which is faintly ridged; outer lip emarginated; interior ridged."

Locus typicus: "Hab. Hongkong (Cuthill)."

Comment Sowerby, 1875, p. 600:

  • "The characters of this species are much the same as those of S. septimus (Duclos), of which Mr. Cuthill has sent me several specimens from the same locality; but the form is very different, the latter being a narrow shell of the form of S. succinctus (Linn.), which is found in Ceylon. "

Strombus robustus Sowerby, 1875, pl. 72, fig. 5, 5a


History and Synonymy

Margistrombus robustus (Sowerby3rd, 1875: 599) (Strombus)

  • Syn.: Strombus (Dolomena) marginatus sowerbyorum Visser & Man in t Veld: 2005: 58, pl. 1 figs 3, 4, pl. 2 fig. 2, pl. 3 figs 3, 4.
  • Syn.: Strombus septimus Duclos. Crosse & Fischer, 1899: 287 [non Strombus septimus Duclos, 1855]
  • Syn.: Labiostrombus succinctus Linn. Kira, 1959: 36, pl. 15 fig. 15 [non Strombus succinctus Linnaeus, 1758]

Specimens from private collections

Margistrombus robustus var. sowerbyorum Visser & Man in t Veld: 2005; Nha Trang, Khnh Ha Province, Vietnam; t: 59 mm, b: 58 mm; Coll. Christian Brnke

Margistrombus robustus (Sowerby II, 1874); Hon Lon Island, Nha Trang, Khnh Ha Province, Vietnam; at 10-12 m in sand, by scuba diver; Coll. Gijs Kronenberg no. 3843

Margistrombus robustus (Sowerby II, 1874); Nha Trang, Khnh Ha Province, Vietnam; in mud at 30 m; 2004; Coll. Gijs Kronenberg no. 6285

Margistrombus robustus (Sowerby II, 1874); Nha Trang, Khnh Ha Province, Vietnam; 2005; Coll. Gijs Kronenberg no. 6315

Margistrombus robustus (Sowerby II, 1874); Nha Trang, Khnh Ha Province, Vietnam; 2008; Coll. Gijs Kronenberg no. 6354

Margistrombus robustus var. sowerbyorum Visser & Man in t Veld: 2005; Kaohsiung, Lingya District, Taiwan Island, Republic of China; t: 45 mm, b: 44 mm; 2/2008; Coll. Christian Brnke

Margistrombus robustus (Sowerby II, 1874); SW coast of Taiwan Island, Republic of China; dredged at 20-40 fathoms; Coll. Gijs Kronenberg no. 5488

Margistrombus robustus (Sowerby II, 1874); SW coast of Taiwan Island, Republic of China; trawled at 30-40 fathoms; Coll. Gijs Kronenberg no. 117

Margistrombus robustus (Sowerby II, 1874); Bangka Island (Banka), Bangka-Belitung Province, Sumatra Island, Greater Sunda Islands, Indonesia; in net at about 20 fathoms; 1997; Coll. Gijs Kronenberg no. 5838

Margistrombus robustus (Sowerby II, 1874); Ko Samui Island, Gulf of Thailand (formerly Gulf of Siam), Surat Thani Province, Thailand; 1991; Coll. Gijs Kronenberg no. 2579

Margistrombus robustus (Sowerby II, 1874); Pattani Province, Malay Peninsula, Gulf of Thailand, Thailand; crab nets; Coll. Guido Poppe

  • l: 42,4 mm; no. 263131
  • m: 49,8 mm; no. 263128
  • r: 43,8 mm; no. 263127

(note: identification and locality doubtful, the carinated shoulder stands for M. marginatus sensu stricto. Virgilio Liverani have dozens of small but typical robustus from Pattani)


Photos of living specimens

Margistrombus robustus (Sowerby II, 1874); Suruga Bay, Japan; Photo Hiroshi Takashige


References

  • Sowerby G.B. II, 1874: Descriptions of five new species of shells. - Proceedings of the Zoological Society of London for 1874: 598-600, pl. 72, fulltext

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