Cerion (Maynardia) ericksoni Clench, 1959

Original Description

"CERION (MAYNARDIA) ERICKSONI, new species Plate 1, figure 1

Description. Shell reaching about 23 mm. (about one inch) in length, attenuate, rimately perforate, solid and strongly sculp­tured. Color a dull red-brown with the axial costae white. .Whorls eight to nine, slightly convex, first six whorls form­ing a convex summit. Spire extended, the convex summit forming an angle of about 55°. Aperture subcircular. Outer lip reflected, thickened and turned backward to form a collar. Parietal lip thickened but not built forward. Columella short and arched. Columellar tooth very small and extending back for nearly a full whorl. Parietal tooth centered, moderately strong but short. Sculpture consists of rather prominent straight and rather regu­lar, axial costae which number 27 to 30 on the body whorl. There is no trace of spiral sculpture. Nuclear whorls smooth, opaque and glass-like.

Length            Width          Whorls

                         23.2 mm.         10.5 mm.          9           Holotype

21                    10.4                  9           Paratype

18.2                  9.8                   8           Paratype

Types. Holotype in the Museum of Comparative Zoology, no. 189121, from Southwest Point, Little Inagua, Bahama Islands, McLean and Shreve collectors, 1938. Paratypes from the same locality in the Museum of Comparative Zoology, the Museo Poey, the United States National Museum, and the Acad­emy of Natural Sciences, Philadelphia.

Remarks. This species is in the C. glans Kuster complex and closely related to a. periulllosum Clench from South Cay, Mira Por Vos Group, Crooked Island Bank. It is the first member of this complex to be recorded from the Inaguas. It differs from periculosum by being heavier, by having the aperture more circular and by having the axial costae vertical and not inclined backward. In addition, the outer lip is much thicker and is re­flected backward for over a millimeter. From C. blandi Pilsbry and Vanatta from Turks Island, it differs by being smaller, having more axial ribs and by having a less tapering spire. All three species are closely related.

This species is named for  M. M. Erickson of Matthew Town in appreciation of his aid and kindness to the McLean and Shreve party during their stay on Great Inagua."  (Clench, 1959:48-49)

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