Acteon, Montfort, 1810

Valdés, Ángel, 2008, Deep-sea “ cephalaspidean ” heterobranchs (Gastropoda) from the tropical southwest Pacific, Mémoires du Muséum national d'Histoire naturelle 196, pp. 587-792 : 619

publication ID	978-2-85653-614-8
persistent identifier	https://treatment.plazi.org/id/03D087B2-FFC4-BE0E-FF01-7766F57AFAB6
treatment provided by	Felipe
scientific name	Acteon
status	n. sp.

Treatment

“ Acteon View in CoL ” boteroi n. sp.

Figs 11F, 13F, 15

TYPE MATERIAL. — Holotype MNHN 20279 and 2 paratypes MNHN 20280-20281.

TYPE LOCALITY. — North of New Caledonia, 18°54’S, 163°11’E, 590 m [MUSORSTOM 4: stn CP 169] GoogleMaps .

MATERIAL EXAMINED. — North of New Caledonia. MUSORS- 177°40’E, 650-701 m, 1 dd, paratype ( MNHN 20280 About MNHN ) .

TOM 4: stn CP 169, 18°54’S, 163°11’E, 590 m, 1 dd, holotype Tonga. BORDAU 2: stn CP 1640, NW of Tongatapu, 21°09’S, ( MNHN 20279; Fig. 13F). 175°24’W, 564-569 m, 1 dd, paratype ( MNHN 20281; Fig. Fiji. MUSORSTOM 10: stn CP 1342, Bligh Water, 16°46’S, 11F).

DISTRIBUTION. — Known from New Caledonia, Fiji and Tonga (Fig. 15), in 569-650 m.

DESCRIPTION. — Shell morphology. Length 12 mm, width 7 mm (holotype). Shell thin, elongate, with convex sides (Fig. 13F). Body whorl very large, about 4/5 of the shell length. Spire short, conical, with 3-4 whorls. Suture channeled. The protoconch was eroded in all specimens examined. Umbilicus closed. Aperture long and narrow, wider anteriorly. The aperture is about 5/6 of the body whorl length. The anterior end of the aperture is expanded into a very short lip. Columellar margin thickened, slightly oblique, with a small, single fold. Sculpture of a number of punctuated spiral grooves (Fig. 11F). The punctuations are small, oval, partially fused together within each groove. The grooves are separated by gaps that are several times wider than the grooves. Colour cream to pale brownish with a whitish area near the suture.

Anatomy. Unknown. All shells collected lacked soft parts.

REMARKS. — The shell morphology of “ Acteon ” boteroi is somewhat similar to that of “ Acteon ” editus n. sp. and “ Acteon ” buccinus n. sp., but it differs from these two species in having a much shorter spire and longer aperture. There are no other species of Acteonidae similar to “ A. ” boteroi.

A generic placement for this species is not possible until complete specimens become available for study.

ETYMOLOGY. — Dedicated to the Colombian artist Fernando Botero, whose paintings and sculptures represent rotund men, women, animals and still lifes. The rounded shape of the shell of “ Acteon ” boteroi evokes Botero’s likely portrayal of a species of Acteonidae .