Sagenotriphora osclausum ( Rolán & Fernández-Garcés, 1995 )

Fernandes, Maurício Romulo, 2024, Triphoridae (Gastropoda) from Martinique sampled by the MADIBENTHOS expedition, with notes on shallow-water species from Guadeloupe, Zoosystema 46 (18), pp. 457-503 : 483-484

Sagenotriphora osclausum ( Rolán & Fernández-Garcés, 1995)

( Figs 2H ; 20 E-F)

Triphora osclausum Rolán & Fernández-Garcés, 1995: 15 , figs 36-38.

MATERIAL EXAMINED. — Guadeloupe. KARUBENTHOS 1 • 2 sh; sta. GB01; MNHN • 1 sh; sta. GS05; MNHN • 1 sh; sta. GB06; MNHN • 1 sh; sta. GS13; MNHN • 1 sh; sta. GB14; MNHN • 1 sh; sta. GD15; MNHN • 1 sh; sta. GS24; MNHN • 1 sh; sta. GS25; MNHN • 4 sh; sta. GB31; MNHN • 1 sh; sta. GD32; MNHN • 1 sh; sta. GS33; MNHN • 1 sh; sta. GR34; MNHN. — KARUBENTHOS 2 • 1 sh; sta. DW4586; MNHN.

Martinique. MADIBENTHOS. ‘Nord Atlantique’ • 1 sh; sta. AB197; MNHN • 1 sh; sta. AD247; MNHN • 1 sh; sta. AD256; MNHN • 1 sh; sta. AD261; MNHN • 1 sh; sta. AD263; MNHN • 3 sh; sta. AD275; MNHN • 2 sh; sta. AB350; MNHN • 2 sh; sta. AS557; MNHN • 1 sh; sta. AB559; MNHN • 3 sh; sta. AS550; MNHN • 4 sh; sta. AB556; MNHN • 2 sh; sta. AB562; MNHN • 5 sh; sta. AS565; MNHN. — ‘Sud Atlantique’ • 1 sh; sta. AS081; MNHN • 1 sh; sta. AB181; MNHN • 3 sh; sta. AB183; MNHN • 3 sh; sta. AB185; MNHN • 3 sh; sta. AB189; MNHN • 1 spm; sta. AB191; MNHN • 1 sh; sta. AD223; MNHN • 1 sh; sta. AD224; MNHN • 1 sh; sta.AS252; MNHN • 1 sh; sta. AS255; MNHN • 2 sh; sta.AB400; MNHN • 3 sh; sta. AB401; MNHN • 6 sh; sta. AB405; MNHN. — ‘Nord Caraibe’ • 1 sh; sta. AD276; MNHN • 1 sh; sta. AD283; MNHN • 1 sh; sta. AS482; MNHN • 1 sh; sta. AB483; MNHN • 2 sh; sta. AS570; MNHN • 1 sh [juvenile]; sta. AS574; MNHN • 1 sh; sta. AS 576; MNHN. ‘Sud Caraibe’ • 5 sh; sta. AB123; MNHN • 2 sh; sta. AB150; MNHN • 1 sh; sta. AB360; MNHN • 1 sh; sta. AB369; MNHN. ‘Baie de Fort-de-France’ • 1 sh; sta. AD605; MNHN.

BATHYMETRIC DISTRIBUTION. — Recorded depth in Guadeloupe: 6-80 m; one intact adult shell obtained by KARUBENTHOS 2 between 204-251 m, but it must be regarded with caution. Recorded depth in Martinique: 4-80 m (live specimen at 14 m). Previous recorded depth in the West Atlantic: 2-183 m ( Fernandes & Pimenta 2020).

REMARKS

Although the illustrated shell of S. osclausum had a wrong identification as Similiphora intermedia (C. B. Adams, 1850) in Rolán & Fernández-Garcés (2015: fig. 4K), this was a lapsus calami, because most shells identified as S. osclausum from Guadeloupe were correct. The shell identified by Lamy & Pointier (2018: pl. 92, fig. 9) as Triphora guadaloupensis Rolán & Fernández-Garcés, 2008 refers to S. osclausum .

Figures

FIG. 2. — Triphoridae Gray,1847 from Martinique - cont.:A, Latitriphora albida (A. Adams,1854),MNHN,sta.AB149,4.0 mm;B, Marshallora cf. modesta (C. B. Adams, 1850), MNHN, sta. AB150, 4.3 mm; C, Metaxia excelsa Faber & Moolenbeek, 1991, MNHN, sta. AB123, 3.6 mm; D, Metaxia rugulosa (C. B. Adams, 1850), MNHN, sta. AD265, 6.3 mm; E, Metaxia taeniolata (Dall, 1889), MNHN, sta. AD261, 5.5 mm; F, Monophorus olivaceus (Dall, 1889), MNHN, sta. AS576, 9.5 mm; G, Nototriphora decorata (C. B. Adams,1850), MNHN, sta.AB390, 6.8 mm; H, Sagenotriphora osclausum (Rolán & Fernández-Garcés,1995),MNHN,sta. AS565, 3.4 mm; I, Similiphora intermedia (C. B. Adams, 1850), MNHN, sta. AD067, 5.6 mm; J, Similiphora sp., MNHN, sta. AS552, 5.1 mm. Scale bars: 1 mm.

FIG. 20. — Live triphorids from Martinique and Guadeloupe (marked with asterisk): A-D, Nototriphora decorata (C.B. Adams,1850),MNHN,sta. GR10 (A), AS253 (B), AB382 (C), AB161 (D); E, F, Sagenotriphora osclausum (Rolán & Fernández-Garcés, 1995), MNHN, sta. AB191; G, H, Triphora ellyae De Jong & Coomans, 1988, MNHN, sta. AB308; I, J, Marshallora monteiroi (Rolán & Fernández-Garcés, 2015) n. comb., MNHN, sta. AD283 (I), GD21 (J). Credits: MNHN team.