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 (2023-07-24 11:53:16, last updated 2024-11-26 22:09:11)
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.

References

BLATTERER H. 2019. - Mollusca of the Dahab region (Gulf of Aqaba, Red Sea). Denisia 43: 1 - 480. https: // www. zobodat. at / pdf / DENISIA _ 0043 _ 0001 - 0480. pdf

FOLIN L. DE 1868. - Les rivages de l'Ile Maurice, in DE FOLIN L. & PERIER L. (eds), Les Fonds de la Mer 1: chap. 17, 82 - 88, pls 6, 9 - 11. https: // www. biodiversitylibrary. org / item / 108784

FOLIN L. DE 1880. - On the Mollusca of the H. M. S. Challenger Expedition. The Caecidae, comprising the genera Parastrophia, Watsonia, and Caecum. Proceedings of the Zoological Society of London 52: 806 - 812. https: // www. biodiversitylibrary. org / item / 90455

PIZZINI M., RAINES B. & VANNOZZI A. 2013. - The family Caecidae in the South-West Pacific (Gastropoda: Rissooidea). Bollettino Malacologico 49 (suppl. 10): 1 - 78. https: // www. biodiversitylibrary. org / part / 291987

VANNOZZI A., PIZZINI M. & RAINES B. 2015. - Revision of South African Caecidae (Mollusca: Gastropoda). African Invertebrates 56 (1): 99 - 136. https: // doi. org / 10.5733 / afin. 056.0109

VANNOZZI A. 2017. - The family Caecidae (Mollusca: Gastropoda) from the Central Philippines. Bollettino Malacologico 53 (2): 121 - 149. https: // www. biodiversitylibrary. org / item / 278548

VANNOZZI A. 2019 b. - The family Caecidae (Mollusca: Gastropoda) from northern Papua-New Guinea. Bollettino Malacologico 55 (1): 72 - 104.

Figures

FIG. 2. — Side and ventral views of Caecum Fleming, 1813 species from BIOMAGLO Expedition: A-C, C. sepimentum de Folin, 1868 from Stn DW4848; A, B, specimens with preserved colour pattern; C, juv.; D, C. succineum de Folin, 1880 from Stn DW4854; E-H, C. iricolor n. sp.; E, F, holotype MNHN- IM-2000-38696, length 2.33 mm; G, H, paratype MNHN-IM-2000-38697 from type locality; I-M, C. biomaglo n. sp.; I, J, holotype MNHN-IM-2000-38700, length 2.46 mm; K, L, paratype MNHN-IM-2000-38701 from type locality; M, paratype from Stn DW4854 MNHN-IM-2000-38702; N, Caecum sp. from Stn DW4847, length 2.4 mm. Scale bar: 1 mm.