^KT. 18 SMALL SHELLS DREDGED BY ' * ALBATEOSS " DALL 77 



oval; posterior angle acute; outer lip fractured; inner lip slightly 

 twisted, reflected over and appressed to the base for the posterior 

 third of its length, provided with an obsolete fold a little anterior to 

 the insertion of the columella. 



The type, Cat. No. 108057, U.S.N.Al., comes from United States 

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

 bottom temperature, off Fernandina, Fla. It has 6.7 postnuclear 

 whorls and measures: Length, 3.3 mm., diameter, 0.8 mm. 



Cat. No. 360170, U.S.N.M., contains an additional specimen from 



the type locality. 



Subgenus Strioturbonilla Sacco 



TURBONILLA (STRIOTURBONILLA) NEMEA, new species 



Shell small, elongate-conic, bluish white, semitranslucent. Nuclear 

 whorls two and a half, forming a depressed helicoid spire which has 

 its axis at right angles to that of the succeeding turns, in the first of 

 which it is about one-fifth immersed. The nuclear spire is large and 

 projects beyond the outline of the postnuclear spire on both sides. 

 Postnuclear whorls moderately rounded, almost appressed at the 

 summit, marked by very strong, protractively slanting axial ribs, of 

 which 16 occur upon the first to fifth, 18 upon the sixth and seventh, 

 20 upon the eighth and last turn. The ribs are strong and extend 

 prominently from the summit to the periphery. They are a little 

 wider than the spaces that separate them. Suture moderately con- 

 stricted. Periphery of the last whorl well rounded. Base short, well 

 rounded. Spire and base marked by fine incremental lines and 

 exceedingly fine, wavy spiral striations. Aperture subquadrate; 

 posterior angle obtuse; outer lip thin, showing the external sculpture 

 within; inner lip almost straight, reflected and appressed for its pos- 

 terior half to the base, provided with an obsolete fold a little anterior 

 to its insertion. 



The type. Cat. No. 108363, 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 10 postnuclear whorls and 

 measures: Length, 4.8 mm.; diameter, 1 mm. 



Cat. No. 188277, U.S.N. M., contains nine additional specimens 

 from the type locality. 



TURBONILLA (STRIOTURBONILLA) PYRRHA, new species 



Shell elongate-conic, milk white. Nuclear whorls two and a half, 

 forming a depressed helicoid spire, the axis of which is almost at right 

 angles to that of the succeeding turns, in the first of which the nuclear 

 spire is about one-fourth immersed. The nuclear spire extends slightly 

 beyond the outline of the postnuclear spire on the left side. Post- 

 nuclear whorls appressed at the summit, moderately rounded, marked 



