Inella mariei Jousseaume, 1884

Albano, Paolo G., Franco, Davide Di, Azzarone, Michele, J., Piet A., Bakker & Sabelli, Bruno, 2023, Review of the types of Indo-Pacific Triphoridae (Mollusca, Gastropoda) in the Muséum national d’Histoire naturelle, Paris, Zoosystema 45 (2), pp. 13-106 : 81

Inella mariei Jousseaume, 1884

( Fig. 54 )

Inella mariei Jousseaume, 1884: 246 , pl. 4, fig. 7.

TYPE LOCALITY. — New Caledonia.

TYPE MATERIAL. — Syntypes. New Caledonia • MNHN-IM-2000-1611; 1 specimen; from type locality (lost?); MNHN-IM-2000-1266; 1 specimen; from type locality (lost?).

ORIGINAL DESCRIPTION. — Testa elongato-turrita, angusta, solidula, luteo albescente; anfractibus circiter 15, planis, tricarinatis (carinae moniliformes [media minor, prima candida, tertia pallide lutea]), sutura impressa separatis; ultimo seriebus quinque moniliformibus-cincto; apertura subovali, lateraliter vix fissa, superne canali brevi unicarinato, munita. — Long. 6-5, lat. 1-3 millim.

[Latin diagnosis followed by a discussion in French]

TRANSLATION OF THE LATIN TEXT. — Turreted-elongated shell, narrow, rather solid, yellow-whitish; about 15 whorls, flattened, with three spiral cords (the cords are tubercled [the middle one is smaller, the first cord is white, the third one is light yellow]), separated by an impressed suture; last whorl with five tubercled spiral cords; subovate aperture, laterally barely fissured, with a short and unicarinated siphon above. — Length 6-5, diameter 1-3 mm.

DIAGNOSIS. — Shell conical with flat sides. Illustrated syntype 6.7 mm high. Teleoconch of 12 whorls. Three spiral cords present, the second appearing on the sixth whorl. First and second cord with tubercles at the intersection with rather prosocline ribs. Second cord initially as a fine thread, but later developing tubercles becoming broader towards the later whorls. Peristome with additional spiral cords. Posterior sinus shallow. Base with three additional spiral cords of which the first two developing faintly tubercles, the third smooth. Paucispiral protoconch of 2-2.5 whorls with two spiral keels and axial riblets; nucleus large and apparently smooth (but no SEM image available). First teleoconch whorl white, the remainder light brown. Protoconch white with the second whorl light brown.

REMARK. — The two registered syntypes have not been found during a recent check of the collection (V. Héros, pers. comm., 8 December 2021).

Figures

FIG. 54. — Inella mariei Jousseaume, 1884, New Caledonia:A, original figure in Jousseaume (1884); B-E, syntype, MNHN-IM-2000-1611; front (B), side (C), back (D), apex (E); F-H, original labels. Scale bars: B-D, 1 mm; E, 0.5 mm.