AKT. 14.- KEW M0LLU3KS FKOM ECUADOE BARTSCH. 9 



Base rather long, well ronnded. The entire surface of the shell is 

 smooth, with a silky luster. Aperture oval. Posterior angle acute; 

 outer lip slightly contracted near the summit, rather protracted in 

 the middle, but scarcely produced into a clawlike element, thin; 

 inner lip stout, reflected over and appressed to tlie base; parietal 

 wall covered by a moderately thick callus. 



The type, Cat. No. 359765, U.S.N.M., has 8.5 whorls and measures : 

 length, 4.5 mm.; diameter, 1.4 mm. 



MELANELLA (BALCIS) ELENENSIS, new species. 



Plate 2, fig. 5. 



Shell elongate-conic, slightly falciform, bluish white. Xuclear 

 whorls decollated. Postnuclear whorls appressed at the summit, 

 very slightly' rounded, forming an almost straight-sided spire. 

 Suture but slightly constricted. Periphery of the last whorl well 

 rounded. Base produced, well rounded. Entire surface smooth 

 with a silky luster. Aperture suboval; posterior angle acute; outer 

 lip thin, slightly contracted immediately below the posterior angle, 

 but scarcely produced into a claw-like element anterior to this ; inner 

 lip stout, very oblique, reflected over and appressed to the base; 

 parietal wall covered by a thin callus. 



The type, Cat. No. 359766, U.S.N.M., has 8.5 whorls and measures : 

 length, 4.5 mm.; diameter, 1.2 mm. Cat. No. 359767, U.S.N.M., con- 

 tains a 3^oung specimen of 5.8 whorls from the same locality. 



EXPLANATION OF PLATES. 

 Plate 1. 



FiG.l. TurboniUa {TiirboniUa) a.xeli. 



2. TurboniUa iStrioturbonilla) thtjue. Spiral sculpture too fine to be 



shown in figure. 



3. TurboniUa {Chemnitzia) oenoa. 



4. TurboniUa (StriofurboniUo) evagone. Spiral sculpture too fine to lie 



shown in figure. 



5. PyramideUa (Longchaeus) elenensis. 



6. TurboniUa (Chemnitzia) theonc. 



Plate 2. 



Fig. 1. TurboniUa (BartsoheUa) scmele. 



2. Odostomia (ChrysaUida) meUtta. 



3. Odostomia (ChrysaUida) olssoni. 



4. MelaneUa (MelaneUa) olssoni. 



5. MelaneUa (Balcis) elenensis. 



6. TurboniUa (Striotia-boniUa) nychia. 



7. TurboniUa (Pyrgiscus) evadne. 



8. TurboniUa (Pyrgiscus) melea. 



o 



