84 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 70 



short, strongly rounded, marked by several incised spiral lines near 

 the umbilicus. Aperture short, broadly oval; posterior angle acute; 

 outer lip thin; inner lip almost straight, reflected over and appressed 

 to the base for half its length and provided with a feeble oblique fold 

 near its insertion. 



The type, Cat. No. 108361, U.S.N. M., comes from United States 

 Bureau of Fisheries Station 2415, in 440 fathoms, sandy bottom, 

 45.6° bottom temperature, off Georgia. It has eight postnuclear 

 whorls and measures: Length, 4.2 mm.; diameter, 1.2 mm. 



Cat. No. 360174, U.S.N.M., contains two additional specimens from 

 the type locality. 



Subgenus Mormula A. Adams 



TURBONILLA (MORMULA) ANIRA, new species 



Shell broadly conic, white. Nuclear whorls two and a half, heli- 

 coid, forming a small spire, the axis of which is at right angles to that 

 of the succeeding turns, in the first of which the nuclear spire is about 

 one-fourth immersed. Postnuclear whorls strongly rounded, marked 

 by strong, well-rounded, somewhat flexuous, slightly protractively 

 slanting axial ribs, of which 22 occur upon the first, 20 upon the 

 second, 18 upon the third, 20 upon the fourth and fifth, 22 upon the 

 sixth and seventh, 24 upon the eighth, and 34 upon the last turn. 

 At regular intervals several of these ribs are gathered into low, 

 rounded varices. Intercostal spaces about one and a half times as 

 wide as the ribs, crossed by the following spiral sculpture: A broad 

 series of impressed pits encircles the whorls about two-fifths of the 

 distance between the summit and periphery anterior to the summit. 

 A peripheral pit about half as strong is present. Between this and 

 the strong anterior pit there are eight incised spiral lines of somewhat 

 varying strength, which divide the space between these two series of 

 pits into subequal areas. Two additional incised lines are anterior 

 to the strong anterior pit, which equal the slender lines anterior to 

 the strong pit, in spacing. The space between the summit and this 

 anterior incised line is crossed bj^ numerous fine spiral striations. On 

 the later turns the first basal pit, which equals the strong pit on the 

 posterior portion of the whorls in width, is present in the suture and 

 the space between this and the peripheral pit is crossed by a fine 

 incised line. Suture moderately constricted. Periphery well rounded. 

 Base short, well rounded, marked by about 12 fine incised spiral lines. 

 Aperture large, broadly oval; posterior angle obtuse; outer lip thin; 

 inner lip slender, reflected but not appressed to the base, provided 

 with an obsolete fold at its insertion. 



The type. Cat. No. 108058, U.S.N.M., comes from United States 

 Bureau of Fisheries Station 2668, in 294 fathoms, sandy bottom, 46.3° 



