Inella blainvilli 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 : 64-65

Inella blainvilli Jousseaume, 1884

( Fig. 39 )

Inella blainvilli Jousseaume, 1884: 244 , pl. 4, fig. 6.

TYPE LOCALITY. — New Caledonia.

TYPE MATERIAL. — Syntypes. New Caledonia • MNHN-IM-2000-729; 3 specimens; from type locality.

ORIGINAL DESCRIPTION. — Testa solidula, pallide cinnamomea elongato-turrita; anfractibus 16-17, regulariter crescentibus (primi cornei, laevigati; sequentes tuberculis in seriebus 3 dispositis, cincti), sutura angusta impressaque separatis; ultimo, carinis 5-ornato; apertura subovata, lateraliter vix fissa; canali brevi, superne unicarinato. — Long. 4-5, lat. 1-5 millim.

[Latin diagnosis followed by a discussion in French]

TRANSLATION OF THE LATIN TEXT. — Rather solid shell, turretedelongated and cinnamon-coloured; from 16 to 17 whorls, regularly growing (first whorls are corneous, smooth; subsequent whorls with three series of tubercles) and separated by a narrow and impressed suture; last whorl with five spiral cords; subovate aperture, laterally barely fissured; short siphon, unicarinated above. — Length 4-5, diameter 1-5 mm.

DIAGNOSIS. — Shell conical with flat sides. Syntypes 5.3 and 5.2 mm high. Teleoconch of 10.5-11 whorls. Three spiral cords present, the second appearing on the sixth whorl. First and second cords with tubercles at the intersection with rather orthocline ribs. Second cord initially as a fine thread, but later developing thin tubercles. Tubercles broader at the peristome. Peristome with a faint additional spiral cord below the second. Posterior sinus barely visible in the syntypes, whose peristome probably not fully developed. Base with three additional spiral cords of which the first developing flat tubercles, the other two smooth. Multispiral protoconch of 4.5 whorls with one strong spiral keel and axial riblets. The nucleus bears hemispherical granules on the lower half. Protoconch and teleoconch light brown.

Figures

FIG. 39. — Inella blainvilli Jousseaume, 1884, New Caledonia: A, original figure in Jousseaume (1884); B-L, syntype 1, MNHN-IM-2000-729: front (B, C), side (D, E), back (F), protoconch (G, H), peristome (I, J), protoconch (K), microsculpture (L); M, Syntype 2, MNHN-IM-2000-729: front; N, O, original labels. Scale bars: B-F, M, 1 mm; G, H, L, 0.2 mm; I, J, 0.4 mm; K, 0.1 mm.