Gastridium (Asprella) geneifaensis (Abbass, 1977)

 

 

Description:

 

Shell small, biconical; spire conical with convex sides; low whorls with median carina; deep, linear suture; last whorl higher than spire, conical, with posterior shoulder under which the sides are inclined; surface crossed by numerous spiral cords separated by narrower interspaces; the spirals decrease in width at the back; narrow, high opening; outer lip with posterior sinus on the shoulder; inner lip parallel to the outer lip, smooth (1).

Abbas compares this specimen with Conus insculptus, which has a proportionately higher shell, higher spire and spirals crossed by axial threads.

 

 

Helvetian, Lower Geneifa Member, Geneifa

 

 

 

 

Gastridium (Asprella) geneifaensis (Abbass, 1977)

Holotype G594

Pl. IX Fig. 5

mm. 15 x 9

Vindobonian - Geneifa

 

 

 

 

Conus insculptus

(Kiener, 1847)

MNHN-IM-2000-2551

mm. 25

 

Gastridium (Asprella) geneifaensis (Abbass, 1977)

Holotype G594

Geneifa

mm. 15 x 9

Vindobonian

 

 


Bibliografia Consultata

 

·         (1) – Houssein Abbass (1977) “A Monograph on the new Miocene Gastropod species in the Cairo-Suez district, Egypt“, J. Univ. Kwait Sci,4