Caecum succineum de Folin, 1880

Vannozzi, Angelo, 2023, The Caecidae from BIOMAGLO Expedition in the Mayotte-Glorieuses area (Mollusca, Gastropoda), Zoosystema 45 (12), pp. 421-434 : 424-426

publication ID	https://doi.org/ 10.5252/zoosystema2023v45a12
publication LSID	lsid:zoobank.org:pub:5EB87A24-068B-40F3-B76B-79E4F48C478A
DOI	https://doi.org/10.5281/zenodo.8183585
persistent identifier	https://treatment.plazi.org/id/03A4967B-FFD4-FFDC-B1F1-FC47F5CD9162
treatment provided by	Felipe
scientific name	Caecum succineum de Folin, 1880
status

Treatment

Caecum succineum de Folin, 1880 View in CoL

( Fig. 2D View FIG )

Caecum succineum de Folin, 1880: 810 View in CoL . — Vannozzi 2019b: 86 and synonymy therein.

TYPE MATERIAL. — Lectotype. Australia • dd; Queensland, Cape York, Flinders Passage , 12.5 m depth; NHMUK 1887.2.9.2344 selected by Pizzini et al. (2013: fig. 11R).

Paralectotypes. Australia • several dd; same data as for holotype; NHMUK .

TYPE LOCALITY. — Pacific Ocean, NE Australia, Queensland, Cape York, Flinders Passage, 12.5 m depth.

MATERIAL EXAMINED. — Îles Éparses • 1 dd; Mozambique Channel, Glorieuses, BIOMAGLO Stn DW 4807; 11°30’S, 47°28’E; 97-124 m depth; 25.I.2017; MNHN GoogleMaps .

Mayotte • 1 dd; Mozambique Channel, W Mayotte, BIOMAGLO Stn DW 4854; 12°56’S, 44°58’E; 455-465 m depth; 04.II.2017; MNHN GoogleMaps • 1 dd cf; Mozambique Channel, SE Mayotte, BIOMAGLO Stn DW 4864; 12°56’S, 45°15’E; 455-487 m depth; 07.II.2017; MNHN GoogleMaps .

Comoros • 1 dd; Mozambique Channel, SE Moheli, BIOMAGLO Stn DW 4836; 12°25.2’S, 43°55.9’E; 82-88 m depth; 28.I.2017; MNHN GoogleMaps .

DISTRIBUTION. — Indo-West Pacific, from the east coast of Africa (Red Sea to eastern South Africa) to Papua New Guinea, Philippines, New Caledonia ( Pizzini et al. 2013; Vannozzi et al. 2015; Vannozzi 2017, 2019b; Blatterer 2019).

DIAGNOSIS. — Shell small for the genus.Tube subcylindrical, smooth, showing some rings toward the aperture. Macula absent. Aperture preceded by a slight swelling. Septum very low dome shaped without mucro, sometimes encrusted. Length 1.5 mm.

REMARKS

This small species shows a very constant morphology, including a very low septum without mucro and a small swelling before the aperture preceded by some distinct rings.