Shell short and very stout, seven-whorled, the last whorl ahont eight elevenths of the whole length ; extreme nucleus smooth ; remainder of the three and a half nuclear whorls vellow-brown, beautifully reticulated with wavy transverse lines, then changing suddenly into waxy white ; remainder of shell with spiral threads, set in pairs which frequently blend to make one flattened spiral thread, with wider interspaces between the threads. Two or three threads next the suture arc stronger and wider apart than the others, the outer one strongest, giving the whorl a turreted appearance, and rising into little knobs on the transverse ridges; these ridges rather sharp, sixteen to eighteen in number, fading away toward the canal in most but not all specimens, flexuous with the lines of growth ; pillar straight, the edge obliquely cut off, shorter than the aperture anteriorly ; a light deposit of callus on the body ; aperture proportionally wide, thin-lipped, about half as long as the shell. Long. 8.25 mm; Lat. 5.25 mm

Yucatan Strait. Gulf of Mexico.