NO. l6 NEW MARINE MOLLUSKS COREA 3 



cord, 3 between the first and second cords, and 2 between the 

 second and third and third cord and the suture. Two Hrations are 

 present on the fifth whorl between the cord anterior to the summit 

 and the summit, 15 between the moderately strong cord and the first 

 strong cord anterior to the sinus, 4 between the first and second and 

 second and third, and 3 between the third and fourth and the fourth 

 cord and the suture. The sixth whorl is marked by 3 Hrations between 

 the summit and the moderately strong cord anterior to it, 20 between 

 the latter cord and the first strong cord, 4 between the first and second, 

 and 5 between the second and third and third and fourth. Periphery 

 of the last whorl well rounded. Base well rounded, marked by the 

 continuation of the axial ribs which seem to bifurcate, and three 

 spiral cords which are a little weaker than those on the spire. The 

 junctions of these cords with the axial ribs form small tubercules 

 which are most pronounced on the second cord. There are four Hra- 

 tions in the space between the first basal cord and the cord posterior 

 to it, and three between the first and second and second and third 

 cords. Columella stout, moderately short, with an umbilical chink at 

 its tip. It is marked by eight spiral cords equal to those on the base 

 and separated by spaces equal to the cords. There are three spiral 

 Hrations between the first and second and second and third cords. 

 Aperture moderately large, deeply channeled anteriorly and posteri- 

 orly, the posterior sinus falling a little anterior to the summit. The 

 outer lip is protracted into a clawlike element between the anterior 

 limit of the posterior sinus and the stromboid notch. There is a heavy 

 varix a sixth of a turn behind the outer lip. The inner lip is reflected 

 over the columella as a heavy callus which extends over the parietal 

 wall and forms a knob at its junction with the outer lip. 



Type. — U.S.N.M. no. 429215, collected at station 104 in 80 to 120 

 fathoms between latitude i8°3o'4o" N., longitude 66°i3'2o" W. and 

 latitude i8°3o'io" N., longitude 66°i3'5o" W. It has 8.7 whorls and 

 measures : Length, 14.2 mm ; greater diameter, 5.9 mm. 



U.S.N.M. no. 429217 contains nine specimens from the type locality. 



CARINODRILLIA (BUCHEMA) SUIMACA, n. sp. 



Plate I, figs. 3, 4 ; plate 2, fig. i ; plate 3, fig. 3 



Shell of medium size, elongate-conic, light brown. Nuclear whorls 

 2.1, the early portion well rounded, smooth, followed by a short por- 

 tion marked by axial Hrations which in turn passes into the last .5 

 marked by equally spaced, slender, almost vertical axial riblets which 

 are slightly retractively curved at the summit. Postnuclear whorls 



