Pleurotomella eurybrocha ( Dautzenberg & Fischer, 1896 )

Negri, Mauro Pietro & Corselli, Cesare, 2016, Bathyal Mollusca from the cold-water coral biotope of Santa Maria di Leuca (Apulian margin, southern Italy), Zootaxa 4186 (1), pp. 1-97 : 70

publication ID

https://doi.org/ 10.11646/zootaxa.4186.1.1

publication LSID

lsid:zoobank.org:pub:029B675F-776C-4CD6-9992-FA05AEADFA7B

DOI

https://doi.org/10.5281/zenodo.6082292

persistent identifier

https://treatment.plazi.org/id/03C587A5-FF81-F930-FF3B-FF7862A6FC0F

treatment provided by

Plazi

scientific name

Pleurotomella eurybrocha ( Dautzenberg & Fischer, 1896 )
status

 

Pleurotomella eurybrocha ( Dautzenberg & Fischer, 1896) View in CoL

Fig. 15 View FIGURE 15. a – d j–l

Pleurotoma eurybrocha Dautzenberg & Fischer, 1896 (p. 427, pl. 15, fig. 14).

Pleurotomella (Gymnobela) eurybrocha (Dautzenberg & H. Fischer) View in CoL — Nordsieck 1968 (p. 184, pl. 31, fig. 95.65). Pleurotomella (Gymnobela) eurybrocha ( Dautzenberg & Fischer, 1896) View in CoL — Nordsieck 1977 (p. 68, pl. 26, fig. 137). Pleurotomella eurybrocha ( Dautzenberg & Fischer, 1896) View in CoL — Bouchet & Warén 1980 (p. 39, figs. 92, 224–225). Pleurotomella eurybrocha ( Dautzenberg and Fischer, 1896) View in CoL — Poppe & Goto 1991 (p. 173, pl. I, fig. 30). Pleurotomella eurybrocha ( Dautzenberg & Fischer H., 1896) View in CoL — Repetto et al. 2005 (p. 215, top right fig.).

Diagnostic characters. Fusiform shell; oval aperture; moderately long and twisted siphonal canal; rather deep anal sinus; 11 collabral ribs per whorl crossed by spiral cordlets; short recurved spines at the intersections of ribs and cordlets; stronger spines bordering the subsutural shelf. Protoconch: conical; 3.5 whorls; diameter about 480 µm (protoconch I: 250 µm); height about 630 µm; first 1.5 whorls (protoconch I) with spirally connected T-shaped granules forming a square reticulated pattern; subsequent whorls (protoconch II) with sinuous, collabral, opisthocyrt axial riblets and non-collabral prosocline riblets; the latter riblets absent in the adapical third, where only collabral riblets are present; terminal spiral keel; transition to the teleoconch at sinusigera.

Remarks. A single juvenile specimen was at hand.

Occurrence. Core BC21 (1 specimen). Height: 2 mm.

Distribution and habitat. Pleurotomella eurybrocha ranges from the northeastern Atlantic to the Azores and the Mediterranean, being a soft bottom dweller at bathyal depths, occasionally found at lower settings in the Mediterranean ( Panetta 1971; Nordsieck 1977; Bouchet & Warén 1980; Poppe & Goto 1991). It was regarded as a characteristic element of the VP (bathyal mud) biocoenosis ( Di Geronimo et al. 1982).

Fossil record. Possibly Pleistocene of Sicily ( Di Geronimo et al. 1982 as P. cf. eurybrocha ).

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Order

Neogastropoda

Family

Raphitomidae

Genus

Pleurotomella

Loc

Pleurotomella eurybrocha ( Dautzenberg & Fischer, 1896 )

Negri, Mauro Pietro & Corselli, Cesare 2016
2016
Loc

Pleurotoma eurybrocha

Dautzenberg & Fischer 1896
1896
Loc

Pleurotomella (Gymnobela) eurybrocha (

Dautzenberg & Fischer 1896
1896
Loc

Pleurotomella eurybrocha (

Dautzenberg & Fischer 1896
1896
Loc

Pleurotomella eurybrocha (

Dautzenberg and Fischer 1896
1896
Loc

Pleurotomella eurybrocha (

Dautzenberg & Fischer H. 1896
1896
GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF