Jordaniella truncatula (Jeffreys, 1850)

Høisaeter, Tore, 2014, The Pyramidellidae (Gastropoda, Heterobranchia) of Norway and adjacent waters. A taxonomic review, Fauna norvegica 34, pp. 7-78 : 42

Jordaniella truncatula (Jeffreys, 1850)

Figure 70

Odostomia truncatula Jeffreys, 1850:109

Odostomia truncatula Jeffreys - Marshall 1899 , 1918; Warén 1980

Odostomia (Odostomia) truncatula Jeffreys - van Aartsen et al. 1998

Chrysallida truncatula (Jeffreys) - Høisaeter 2009

Odostomia (Jordaniella) truncatula Jeffreys - Winckworth 1932 ; van Aartsen 1987

Odostomia trunculata Jeffreys - Rodriguez-Babio & Thiriot-Quiévreux 1974

Jordaniella truncatula (Jeffreys) - Fretter et al. 1986; Graham 1988; Smith & Heppell 1991

Type material: Lectotype (from 32 syntypes, USNM 132017 ) chosen by van Aartsen 1987, Figure 9.

Type locality: Plymouth, Great Britain .

Material seen: Norway - Skagerrak, 1 sh; England – 1 sh ( ZMBN 15744).

Diagnosis: Shell: Tall and narrow, to 4.7 mm. With an oblique, blunt apex. The whole surface with rather shallow and delicate spiral ridges crossed by exaggerated growth lines. The growth lines are especially distinct near the top of each whorl. Suture deep and channeled. See further Fretter et al. 1986.

Biology: Not known.

Distribution: Not previously reported from Norway, and is included here on the basis of a single brittle and partly broken shell from just south of Grimstad (G 115-71 - 58°18’N, 60 m, shell sand). Outside Norway it is rare everywhere, and recorded from the southwestern coast of the British Isles and the French coast south to the Bay of Biscay ( Fretter et al. 1986). It is

recently reported from Cape Verde Islands by van Aartsen et al. (1998).