Monophorus olivaceus ( Dall, 1889 )

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 : 476

Monophorus olivaceus ( Dall, 1889)

( Figs 2F ; 19 C-F)

Triforis decorata var. olivacea Dall, 1889: 244 .

MATERIAL EXAMINED. — Guadeloupe. KARUBENTHOS 1 • 1 sh, 1 spm; sta. GB03; MNHN • 1 sh; sta. GS06; MNHN • 1 sh; sta. GS07; MNHN • 3 sh; sta. GS08; MNHN • 3 sh; sta. GD10; MNHN • 2 sh; sta. GB11; MNHN • 1 sh; sta. GB12; MNHN • 15 sh, 1 spm; sta. GS13; MNHN • 5 sh; sta. GB14; MNHN • 2 sh; sta. GD15; MNHN • 1 sh; sta. GS16; MNHN • 2 sh; sta. GS18; MNHN • 2 sh [juveniles]; sta. GB19; MNHN • 1 spm; sta. GD21; MNHN • 1 sh; sta. GS21; MNHN • 3 sh; sta. GB22; MNHN • 1 sh; sta. GS22; MNHN • 1 sh; sta. GB24; MNHN • 1 sh; sta. GB25; MNHN • 2 sh; sta. GS26; MNHN • 1 sh; sta. GS29; MNHN • 2 sh [juveniles]; sta. GR34; MNHN • 1 sh; sta. GB36; MNHN • 1 sh; sta. GD61; MNHN.

Martinique. MADIBENTHOS. ‘Nord Atlantique’ • 1 sh; sta. AR143; MNHN • 1 sh; sta. AB197; MNHN • 1 sh; sta. AB199; MNHN • 1 sh; sta. AD254; MNHN • 1 sh [juvenile]; sta. AD260; MNHN • 1 sh; sta. AD263; MNHN • 6 sh; sta. AB556; MNHN • 8 sh; sta. AS557; MNHN • 3 sh; sta. AB559; MNHN • 1 sh; sta. AB562; MNHN • 7 sh; sta. AS565; MNHN. — ‘Sud Atlantique’ • 1 sh; sta. AD084; MNHN • 1 spm; sta. AB185; MNHN • 1 sh; sta. AS255; MNHN • 3 sh [juveniles]; sta. AB405; MNHN. — ‘Nord Caraibe’ • 5 sh; sta. AB108; MNHN • 8 sh; sta. AB159; MNHN • 2 sh; sta. AB161; MNHN • 1 sh, 1 spm; sta. AD283; MNHN • 1 sh; sta. AD294; MNHN • 4 sh; sta. AR308; MNHN • 1 sh; sta. AB362; MNHN • 1 sh; sta. AS 365; MNHN • 1 sh; sta. AB372; MNHN • 2 sh; sta. AS 373; MNHN • 10 sh; sta. AS 375; MNHN • 7 sh; sta. AB377; MNHN • 2 sh; sta. AS 378; MNHN • 2 sh; sta. AB386; MNHN • 1 sh; sta. AB388; MNHN • 1 spm; sta. AR461; MNHN • 1 sh [juvenile]; sta. AB510; MNHN • 5 sh; sta. AS 570; MNHN • 2 sh; sta. AS 572; MNHN • 1 sh; sta. AS 574; MNHN • 5 sh; sta. AS 576; MNHN. ‘Sud Caraibe’ • 1 sh; sta. AS 066; MNHN • 1 sh; sta. AS 071; MNHN • 1 sh; AR100; MNHN • 1 sh; sta. AR122; MNHN • 1 sh; sta. AB126; MNHN • 6 sh; sta. AB150; MNHN • 1 spm; sta. AB152; MNHN • 1 sh; sta. AB155; MNHN • 3 sh; sta. AB177; MNHN • 1 sh; sta. AD271; MNHN. ‘Baie de Fort-de-France’ • 1 sh; sta. AB394; MNHN • 2 sh; sta. AS 581; MNHN.

BATHYMETRIC DISTRIBUTION. — Recorded depth in Guadeloupe: 9-80 m (live specimens at 22-50 m). Recorded depth in Martinique: 2-80 m (live specimens at 4-40 m). Previous recorded depth in the West Atlantic: 0-120 m, with discrepant records down to 260 m ( Fernandes & Pimenta 2020).

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. 19. — Live triphorids from Martinique and Guadeloupe (marked with asterisk): A, B, Metaxia taeniolata (Dall, 1889), MNHN, sta. AD261; C-F, Monophorus olivaceus (Dall, 1889), MNHN, sta. GD21 (C), AB185 (D), AR461 (E, F); G, H, Nanaphora leei Fernandes & Pimenta, 2015, MNHN, sta. AB400 (G), AB419 (H); I, Nanaphora cf. verbernei (Moolenbeek & Faber, 1989), MNHN, sta. AB149. Credits: MNHN team.