Mauroceras rhinoceros ( Pizzini, Raines & Vannozzi, 2013 )

Walter, Angelo Vannozzi & Renda, Walter, 2024, Sampling the depth: New data on the Caecidae (Mollusca, Gastropoda) from northeastern Papua New Guinea, Zoosystema 46 (14), pp. 327-347 : 344

publication ID

https://doi.org/ 10.5252/zoosystema2024v46a14

publication LSID

lsid:zoobank.org:pub:23D972D0-F573-429C-816B-F42AFF02D0B1

DOI

https://doi.org/10.5281/zenodo.12554903

persistent identifier

https://treatment.plazi.org/id/038F87DD-FF94-FFFA-2063-FF23399DCB4B

treatment provided by

Felipe

scientific name

Mauroceras rhinoceros ( Pizzini, Raines & Vannozzi, 2013 )
status

 

Mauroceras rhinoceros ( Pizzini, Raines & Vannozzi, 2013) View in CoL

( Fig. 8D, E View FIG )

Meioceras rhinoceros Pizzini et al. 2013: 42 View in CoL , fig. 16A-C.

Mauroceras rhinoceros View in CoL – Vannozzi 2019b: 91, and synonymy therein.

TYPE MATERIAL. — Holotype. Loyalty • sh; Lifou , Baie de Santal , NE of the Bay, level of Cila, 25-30 m depth; MNHN-IM-2000-24880 . Paratypes. Loyalty • 1 sh; same data as for holotype; MNHN-IM-2000-24881 .

Papua New Guinea • 2 sh; New Britain, Rabaul , 4°12’S, 152°11’E; AMS C044117-n. 003958B GoogleMaps .

Indonesia • 1 sh; N Sulawesi, off Menado , S side of Bunaken and Siladen ; 1°36.2’N, 124°46’E; 5-20 m depth; LACM 88-55 About LACM GoogleMaps 1 sh; Gulf of Tomini , Kep.Togian, Batudaka Is. , 12-17 m depth; coll. IK .

TYPE LOCALITY. — Pacific Ocean, Loyalty, Lifou, Baie de Santal, NE of the Bay, level of Cila, 25-30 m depth.

MATERIAL EXAMINED. — Papua New Guinea • 1 sh; New Ireland; 2°45’S, 150°37’E; 163-358 m depth; 3.IX.2014; KAVIENG 2014 Stn DW4470; MNHN GoogleMaps .

DISTRIBUTION. — Indonesia, North Sulawesi, Philippines, northeastern PNG ( Pizzini et al. 2013; Vannozzi 2017, 2019a, b, unpublished data).

DIAGNOSIS. — Shell very large for the genus, whitish, glossy. Protoconch planorbid, smooth, of 1.75 whorls, ending with thickened sinusigera lip.Teleoconch almost straight, tubular. Early teleoconch conical, rapidly growing, with hardly visible annular sculpture. Adult shell subcylindrical, tapering toward both the apex and the aperture. Maximum width located adapically at about ¼ of the length. Septum recessed below the cutting plane, with a strong hook-like mucro projecting well beyond the cutting plane. Aperture oblique, simple with reflected lip. Operculum and soft parts unknown. Adult shell length c. 6 mm, protoconch size 280 µm.

REMARKS

This huge species can be considered as the giant of the family. Due to its peculiar characters and the large size, it is easily identified.

MNHN

Museum National d'Histoire Naturelle

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Order

Littorinimorpha

Family

Caecidae

Genus

Mauroceras

Loc

Mauroceras rhinoceros ( Pizzini, Raines & Vannozzi, 2013 )

Walter, Angelo Vannozzi & Renda, Walter 2024
2024
Loc

Mauroceras rhinoceros

VANNOZZI A. 2019: 91
2019
Loc

Meioceras rhinoceros

PIZZINI M. & RAINES B. & VANNOZZI A. 2013: 42
2013
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