Jujubinus gofasi Mariottini, Oliverio & Smriglio sp. nov.

urn:lsid:zoobank.org:act: D39C23A9-FD4C-48BC-BDD8-00BB77D11941

SSH XI – Fig. 7J–L

Diagnosis

Shell of medium size for the genus, solid, 5–6 spaced spiral cords, elevated, granulose, wide interspaces like the cords, with strong prosocline lamellae, peripheral cord very evident, high height/width ratio.

Etymology

The species is named after Serge Gofas, for his great contribution to malacology.

Type material

Holotype SPAIN • lv (6.8 (H) × 5.5 (W) mm); Málaga (type locality); 2–5 m depth; used for DNA sequencing; MNHN-IM-2000-40312 (ex BAU2075.1).

Paratypes SPAIN • 1 lv; same data as for holotype; used for DNA sequencing; MCZR-M-TYPE 00095 (ex BAU2075.3) (paratype 1) • 3 lv; same data as for holotype; BAU2066.3 (paratype 2), BAU2066.5 (paratype 3), BAU2068.2 (paratype 4) • 5 lv; same data as for holotype; MO (paratypes 5–9) • 10 lv; same data as for holotype; CS-PM (paratypes 10–19) • 6 lv; same data as for holotype; JMP (paratypes 20–25) • 3 lv; Almería; 20–30 m depth; trawled; used for DNA sequencing; RM3 -Jst7 to RM3 -Jst9 (paratypes 26–28) • 4 lv; Almería; CS-PM (paratypes 29–32).

Other material examined

FRANCE • 10 lv; Brittany, Ploubazlanec, Baie de Launay; 48°48′5″ N, 3°00′10″ W; intertidal; used for DNA sequencing; BAU 2659.1 to 2659.5, BAU 2662.1 to 2662.5.

GREAT BRITAIN • 2 dd; Jersey; “ J. striatus Jersey England d. Chaster.95”; MCZR-M-11680.

MOROCCO • 31 dd; Tangeri; “Tanger Jujub. Depictus De dd. Tangeri (M. Pallary)”; MCZR-M-11681 • 5 dd; Tangeri; “Tanger J. depictus De dd. Tangeri”; MCZR-M-11694.

Description (in parentheses data of the holotype)

SHELL. Shell of medium size for the genus, height 6.4–8.8 (5.8) mm, width 4.9–6.8 (5.8) mm, height/ width 1.21–1.38 conical, solid, slightly cyrtoconoid, rather shiny. Protoconch seemingly smooth, of ca 15 whorl, 0.25–0.26 (0.25) mm in width. Teleoconch of 6.5 (5.5) slightly convex whorls. Sculpture of 5–6 (6) strong, closely set abapical spiral cords of about the same strength, including the 2–3 (3) peripheral ones forming the strong peripheral cord, and 6–7 (7) regularly spaced, basal weaker spiral cords and flat. Interspaces with thick and strong regularly set prosocline lamellae. Suture well incised. Teleoconch surface covered by barely visible prosocline growth striae, rather regular. Base convex, umbilicus closed also in juveniles, covered with a white callus. Aperture quadrangular, with columellar callus thickened in the middle portion. Interior of the aperture whitish/greyish, nacreous.

COLOURATION. Colour of protoconch and initial teleoconch whorls whitish or greyish; remaining whorls and base cream or blackish background with alternating large blackish/whitish blotches.

SOFT PARTS. Observed in alcohol preserved specimens, dark terminal strip on the creamy band of the snout.

Distribution

Ranging from the Mediterranean of southern Spain to the Atlantic, southward along the coasts of Morocco and northward to Brittany (France), and Jersey Is. (UK), living specimens from the intertidal to 5 m deep.

Remarks

In some specimens the background colour is blackish with alternating large whitish blotches.

It differs from J. exasperatus, J. pseudogravinae and J. gravinae in the lack of tubercles on the spiral cords; from J. vulgaris in the more numerous spiral cords (5–6 in J. gofasi sp. nov. vs 3 in J. vulgaris) and the colouration (cream or blackish with alternating large blackish-whitish blotches in J. gofasi vs white or whitish background with reddish brown in J. vulgaris); from J. vexationis (Madeira) in its larger size and the different sculpture (7–8 weak spiral cords, with slight undulations of the peripheral cord in the first 2–3 teleoconch whorls, broad interspaces with fine prosocline lines in J. vexationis vs 6 strong spiral cords and narrow adorned with strong prosocline lamellae in J. gofasi).

From J. swinneni sp. nov. (Canary Islands) it differs in its stronger sculpture (with the prosocline lamellae crossing the spiral cords, whereas fine growth lines and lamellae are present mostly in the interspaces in J. swinneni).

It differs from J. depictus in the more numerous spiral cords (3–4 in J. depictus vs 5–6 in J. gofasi sp. nov.) and weaker sculpture; from J. sartorii in the spiral cords with narrower interspaces and with more marked axial lamellae; from J. kyrnos sp. nov. in its large size, the colouration (cream or whitish background, with blackish and greyish flammules in J. kyrnos vs darker background with alternating large blackish blotches in J. gofasi), and the more numerous spiral cords (3 in J. kyrnos vs 5–6 in J. gofasi); from J. ruscurianus in its stronger sculpture with narrower interspaces with more marked lamellae; from J. elenchoides in its smaller size, and the fewer cords (12–16 spiral cords in J. elenchoides vs 5–6 in J. gofasi); from J. fraterculus in its weaker sculpture with less marked prosocline lamellae in the interspaces; from J. superum sp. nov. in its colouration (dark greyish-blackish background in J. superum vs cream or blackish background with alternating large blackish blotches in J. gofasi) the larger size and the more marked sculpture with (vs very fine lamellae in the interspaces of J. superum).