Ocenebra haidingeri (Hörnes, 1853)

Harzhauser, Mathias, Landau, Bernard M. & Merle, Didier, 2025, The Muricidae (Gastropoda, Muricoidea) of the Miocene Central Paratethys Sea (Haustrinae, Muricinae, Ocenebrinae, Pagodulinae, Typhinae, Muricidae incertae sedis), Zootaxa 5572 (1), pp. 1-162 : 51

publication ID	https://doi.org/10.11646/zootaxa.5572.1.1
publication LSID	lsid:zoobank.org:pub:7AF6A560-3FAC-4490-B167-327A7912F242
persistent identifier	https://treatment.plazi.org/id/F73C87F9-FFD4-8068-FF50-A831F99BB9F6
treatment provided by	Plazi
scientific name	Ocenebra haidingeri (Hörnes, 1853)
status

Treatment

Figs 13 View FIGURE 13 , 21A–B View FIGURE 21

* Murex Haidingeri Hörnes —Hörnes 1853: 228, pl. 23, fig. 12.

Murex (Trophon) Haidingeri M. Hoern. —Hoernes & Auinger 1885: 214, pl. 29, fig. 9.

T [rophonopsis]. (T [rophonopsis].) haidingeri (Hörn.) — Sieber 1958: 145.

[ Ocinebrellus View in CoL ] haidingeri Hörnes, 1853 — Vokes 1971: 56.

Trophon haidingeri (Hoernes, 1853) — Stojaspal 1978: 339.

Type material. Holotype: NHMW 1855 View Materials /0045/0681, SL: 39.0 mm, MD: 22.9 mm, Grund ( Austria), illustrated in Hörnes (1853: pl. 23, fig. 12), Figs 21A View FIGURE 21 1 –A View FIGURE 1 2 View FIGURE 2 .

Illustrated material. NHMW 1855/0045/0681a, SL: 35.2 mm, MD: 21.2 mm, Grund ( Austria), illustrated in Hoernes & Auinger (1885: pl. 29, fig. 9), Figs 21B View FIGURE 21 1 –B View FIGURE 1 2 View FIGURE 2 .

Revised description. Medium-sized, moderately slender fusiform, solid shell with scalate spire; apical angle ~55°. Protoconch unknown. Teleoconch of up to five whorls. Early teleoconch whorls shouldered with shallow subsutural ramp. Suture deeply incised.Axial sculpture of ten broad axial ribs. Spiral sculpture of close-set scabrose adis, IP, abis with subequal secondary cords; P1 along shoulder forming short open spines; P2 less prominent; s1 weaker. Last whorl attaining ~70% of total height, markedly shouldered, strongly constricted. Eight prominent, weakly foliose varices forming robust, open, adapically curved spines at shoulder. Terminal varix with longest spine. Spiral sculpture of prominent adis, IP and abis with secondary cords of subequal strength. P1 most prominent; P2, P3 atrophied; P4, P5 prominent, s4, s5 present; P6, ADP, MP and ABP slightly weaker, of subequal strength; secondary cords ads and ms between ADP, MP and ABP. Fasciole swollen, delimiting broad pseudoumbilicus. Aperture roundly subtrigonal; outer lip smooth with weak incision at shoulder spine. Anal canal subobsolete. Siphonal canal of medium length, fused, slightly bent to the left (note that the siphonal canal is damaged in the holotype). Columella weakly excavated, smooth. Columellar callus forming broad, adherent rim, sharply delimited from base.

Discussion. This species was placed in Trophon Montfort, 1810 [type species Murex magellanicus Gmelin, 1791 [= Trophon geversianus ( Pallas, 1774) ]; present-day, western Atlantic] by Hoernes & Auinger (1885) and Stojaspal (1978), but Trophon species have an open siphonal canal. Ocenebra haidingeri (Hörnes, 1853) is also superficially reminiscent of Scabrotrophon McLean, 1996 [type species Scabrotrophon maltzani ( Kobelt, 1878) , present-day, southern California], which comprises deep-water species with small to medium-sized shells showing prominent spiral sculpture overriding the axials, often with spines along the shoulder. Despite the similarities in shape and sculpture, the Paratethyan species differs from extant Scabrotrophon species in its fused siphonal canal and the more solid shell. Herein, we tentatively place this species in Ocenebra and assume that it belongs to the Ocenebra erinaceus group. The atrophy of P2 is a character shared with O. erinaceus , O. brevirobusta Houart, 2000 from Morocco (Pleistocene to present day) and O. scorpio sp. nov.