Shell narrowly fusiform, small, 8-10.3 mm. (about 0,375 of an inch) in height, with a tall spire of greater height than that of the aperture plus the anterior canal. Protoconch relatively large, bluntly rounded, smooth, ol two whorls, the last quarter whorl with many coarse oblique brephic axials. Post-nuclear whorls six, all con¬spicuously carinated at middle whorl height. The suture is subobsoletely submargined, the rest of the shoulder slope is smooth, and the peripheral carina is studded with rather distant strong pointed tubercles that finally more or less resolve into a smooth flange. Below the periphery and on the base and anterior end there are distinct linear-spaced smooth spiral cords. There is also a conspicuous bluntly rounded subangle on the upper part of the base. The sinus is moderately deep, broadly U-shaped, occupying about three-fourths of the shoulder area. This species may not be satisfactorily located in Comitas, but on the other hand it is quite remotely dissimilar from Cosmasyrinx, its original location.
Range—Lower Pliocene of Miyazaki, Japan.