Conus lyratus (Marshall, 1918)

Conus marshalli (Finlay, 1926)

 

 

Description.

 

Shell of moderate size, 28 mm. by 10 mm. Spire short, about one-fifth the length of the body-whorl. Five whorls, each slightly convex in outline. Each whorl rising by a decided step from the anterior suture. Aperture narrow but expanding slightly anteriorly.

 

Ornamentation: Whorls smooth except for numerous distinct lines of growth which extend completely across them. Body-whorl with distinct spiral lirae over its whole surface, though they are more distinct in the anterior than in the posterior portion. Lines of growth on the body-whorl are not numerous and not distinct. A single specimen, in good condition. Type in the Wanganui Museum (2).

 

 

Conus marshalli is a synonymous of Conus lyratus, but the change of the name was unnecessary (3).

 

 

 

Conus lyratus (2)

mm. 28 x 10

Plate XX Figs. 5, 5a

Lower Miocene

Pakaurangi Point

 

 

 

 

 

 



Bibliografia Consultata

 

        (1) - Finlay (1926). The Tertiary Molluscan Fauna of Pakaurangi Point, Kaipara Harbour. Transactions and Proceedings of the New Zealand Institute, 50

        (1a)

        (2) - Marshall, 1918. The Tertiary Molluscan Fauna of Pakaurangi Point, Kaipara Harbour. Transactions and Proceedings of the New Zealand Institute, 50

        (3) - Revised descriptions of New Zealand Cenozoic Mollusca from Beu and Maxwell (1990)

        (4) - Brian Jones (1970) Paleontology and paleoecology of Pakaurangi Point, Kaipara, New Zealand