Cochlostoma (Turritus) stussineri
Creators: name: Zallot, Enrico
name: Kamchev, Panche
name: Schilthuizen, Menno
name: Fehér, Zoltán
name: Mattia, Willy De
name: Gittenberger, Edmund
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Architaenioglossa
Cochlostomatidae
Cochlostoma
Cochlostoma stussineri

description: Cochlostoma (Turritus) stussineri (Wagner, 1897)
Figs 14 (cyan dots), 15C, 16–17
Pomatias gracile var. stussineri Wagner, 1897: 46, pl. 8 fig. 76a–b.
Lectotype (here designated)
SLOVENIA • ♀; 1- Nanos ober Präwald; NHMWE 1262.
Other specimens
ITALY • 14- Mt Sabotino; 45.9849° N, 13.6282° E; 2009; De Mattia leg.; WdM6954.
SLOVENIA • 1- Mt Nanos, top, loc. Plesa (topotypical); 45.7981° N, 14.067° E; 2005; De Mattia leg.; WdM6727 • 1- Mt Nanos, 3.7 km NNW of Abram (topotypical); 45.8476° N, 14.0103° E; 2009; De Mattia leg.; WdM-6730 • 4- Divje Jezero; 45.9827° N, 14.0277° E; 2009; De Mattia leg.; WdM6840 • 5- Solkan to Plava; 46.0157° N, 13.6112° E; 2009; De Mattia leg.; WdM6695 • 6- Podlešče-Bainsizza; 46.0574° N, 13.7271° E; 2009; De Mattia leg.; WdM6813 • 7- 2.4 NW of Kalce; 45.9074° N, 14.1647° E; 2009; De Mattia leg.; WdM6725 • 8- Planina; 45.8297° N, 14.2506° E; 2000; Zallot leg.; EZ0125 • 9- 3 km S of Planina; 45.8300° N, 14.2606° E; 2000; Zallot leg.; EZ0126 • 10- near Logatec; 45.8808° N, 14.2745° E; 2009; Zallot leg.; EZ0127 • 11- Vrhnika; 45.9706° N, 14.3119° E; 2000; Zallot leg.; EZ0128 • 12- Rakow Skocjan; 45.7947° N, 14.2895° E; 2009; Zallot leg.; WdM6918 • 13- Laška kukava; 45.8907° N, 14.2889° E; 2008; De Mattia leg.; WdM6924.
Type locality
SLOVENIA • Mount Nanos, Inner Carniola.
Description
SHELL. Spaced riblets on last part of protoconch. Teleoconch spotless, ribbed with ribs not very prominent. Moderately strong lip, with columellar lobe inwardly curved to cover the umbilicus.
MEASUREMENTS. 24 ♀♀: whorls=7.1–8.3, H= 6.4–9 mm, H/W =2.43–2.79, roundness =0.11–0.16, ribs incl.= 57–67°, apert. incl.= 9–24°, ribs/mm 1 st wh. =6–20, ribs/mm 4 th wh.=6–16.
FEMALE GENITAL ORGANS. Ventral connection of pedunculus of bursa copulatrix, short, oval-shaped seminal receptacle confined to ventral side of body, two to three loops close to apex of seminal receptacle and close connection of junction of uterus gland to connection between pedunculus of bursa copulatrix and distal oviduct.
Remarks
Wagner (1897: 46 [610]) firstly mentioned as locality “Nanos”. He also referred to specimens from “Krain. Idrizathal” as unconditionally belonging to this species. By the designation of NHMW E1262 as lectotype, Mount Nanos becomes the type locality. The specimens MIZPASW6869 (5 ♀♀), 4- Krain, Iška Schlucht b. Krimberg, SMF160611 (1 ♀), 4- Krain, Iška Schlucht b. Krimberg and SMF160613 (1 ♂) were also mentioned, but considered transitional to “ croatica ”, and cannot be considered syntypes. De Mattia et al. (2011) reported C. (T.) gracile from Mount Sabotino, Italy. In the light of the results of our analysis, this has to be corrected to C. (T.) stussineri.
The great variability of the number of ribs per mm and the variable strength and shape of the lip may indicate that not all populations assigned to this species are conspecific.
description: Published as part of Zallot, Enrico, Kamchev, Panche, Schilthuizen, Menno, Fehér, Zoltán, Mattia, Willy De & Gittenberger, Edmund, 2024, Cochlostoma Jan, 1830 revised: an overview of the subgenus Turritus Westerlund, 1883 and its species (Caenogastropoda, Cochlostomatidae), pp. 1-163 in European Journal of Taxonomy 927 on pages 18-22, DOI: 10.5852/ejt.2024.927.2475, http://zenodo.org/record/10853688