235 . 



25. Sealaria (Hemiaeipsa) polynema, ^pec. nov. 



Shell subulate-turrited, stout, smooth, shining, imperforate ; 

 ordinary whorls about nine, nearly flat, feebly costated and 

 variced, spirally striate ; apex unknown. 



The costfe are slightly arched, subacute, slender, separated by 

 as wide concave interspaces, about 1 8 on the anterior whorls ; 

 varices broad, depressed, about six on the spire. 



The spiral ornament consists of slender subacute threads, 

 separated by equally wide incised furrows, about 12 to 15 on the 

 anterior whorls. The suture is concealed by a narrow ante-sutural 

 band, most conspicuous on the anterior whorls. 



Base convex, concentrically lirate ; aperture oval, well-rounded 

 at the front ; outer lip rather thin, margined-behind by a varix ; 

 columella slightly-thickened internally. 



Dimensions. — Length, 9 ; width, 2 ; an imperfect example 

 width, 3 ; height of aperture, 2; width, 1*5. 



Locality. — Eocene ; Bird-rock Bluff", Spring Creek near 

 Geelong. 



This species is closely related to the last, differing by its more 

 slender and numerous cost^ and lir?e. 



