Litthabitella aquaadcrucem Jaszczyńska et Osikowski, 2023

Falniowski, Andrzej, Jaszczyńska, Aleksandra, Osikowski, Artur & Hofman, Sebastian, 2023, Litthabitellidae: a new family of the Truncatelloidea (Mollusca: Caenogastropoda), Journal of Natural History 57 (5 - 8), pp. 299-329 : 308-309

publication ID	https://doi.org/ 10.1080/00222933.2023.2168573
DOI	https://doi.org/10.5281/zenodo.7778214
persistent identifier	https://treatment.plazi.org/id/C92D878F-3C69-D356-2550-FF53FC72FB93
treatment provided by	Plazi
scientific name	Litthabitella aquaadcrucem Jaszczyńska et Osikowski
status	sp. nov.

Treatment

Litthabitella aquaadcrucem Jaszczyńska et Osikowski sp. nov.

( Figures 3 View Figure 3 (a), 4 (m–s), 5 (b,e,h), 7, 8, 9 (b–e), 10)

urn:lsid:zoobank.org:act:2ABE7402-A94B-4289-BD15-E98F5C147B2E

Diagnosis

Shell small, ovate conical, distinguished from similarly high and broad L. chilodia by a proportionally lower aperture and thus higher spire, less weakly angled adapically, and less broad tip of the penis. COI sequences: ON661272–ON661278; H3 sequences: ON661565–ON661570; 18S sequences: ON667998–ON668004. COI MDCs: 12, C; 33, C; 66, A; 93, A; 115, T; 120, G; 159, G; 174, T; 177, T; 222, T; 225, G; 354, C; 363, C; 393, G; 399, G; 402, A; 408, C; 432, G; 453, G.

Etymology

The specific name aquaadcrucem is the Latin phrase ′ aqua ad crucem ̍, which means ′water at the cross̍, and is a translation of the Serbian Voda u Križa, which is the name of the spring. It should be considered a noun in apposition.

Type material

Holotype. MONTENEGRO: ethanol-fixed specimen ( Figure 3 View Figure 3 (a)); W of Sotonići, small spring Voda u Križa near the restaurant of the same name; 42.2367°N, 19.0439°E; 183 m a.s.l.; our locality 8 ( Figure 2 View Figure 2 (d)), on the gravel; July 2005; Magdalena Szarowska, Andrzej Falniowski; MNHW-1439. GoogleMaps

Paratypes. MONTENEGRO: 20 specimens (ethanol-fixed); same collection data as for holotype, DMJU 2211 GoogleMaps .

Description

Shell. ( Figure 3 View Figure 3 (a)) Ovate conical up to 2.51 mm high, whorls growing regularly. Holotype measurements: see Table 4 View Table 4 . Teleoconch whorls slightly convex, evenly rounded. Aperture narrow, ovate, weakly angled adapically, peristome continuous, in its upper part fitting tight to body whorl. Parietal lip complete, adnate, umbilicus nearly completely covered by lip. Outer lip fluted, orthocline. Shell glossy with very slightly marked growth lines, thickwalled and translucent, periostracum whitish. Initial part of the protoconch narrow, on the protoconch surface only delicate irregularities ( Figure 5 View Figure 5 (b)).

Measurements of holotype and sequenced and illustrated shells: see Table 4 View Table 4 . Shell variability slightly marked ( Figure 4 View Figure 4 (m–s)).

Morphology and anatomy of soft parts. The head with eyes and no pigment; mantle intensively black pigmented. Ctenidium with 19 short lamellae (in five examined specimens), the osphradium broad ( Figure 7 View Figure 7 (a)). Radula ( Figure 5 View Figure 5 (e,h)) typical of Litthabitella . Anus long forward from the female gonopore ( Figure 7 View Figure 7 (a)). Female reproductive organs ( Figure 7 View Figure 7 (a–d)) as described above for the family. Penis ( Figure 9 View Figure 9 (b–e)) as described above for the family, with less broad tip than in L. chilodia ( Figure 9 View Figure 9 (a)).

Distribution and habitat

Known from the type locality (8), the small spring Voda u Križa near the restaurant of the same name ( Figure 2 View Figure 2 (d)), and localities 6 and 9 ( Figure 1 View Figure 1 and Table 1 View Table 1 ).