PUPA. 327 



6. PUPA DECORA, Gould. 

 Plate LXXI. Figuke. 3. 



P. testa minuta, cylindracea, nitida, lucida, vinosa, tenu- 

 issime striata, perforata ; spira anfraclibus quinque vel sex, 

 ventricosis, apice rotundata ; sutura profunda ; apertura 

 semi-ovali, dentibus quatuor cruciatim dispositis armata ; 

 peristomate vix reflexo. 



SYNONYMS AND EEFEKENCES. 



Fupa decora, Gould, Proc. Bost. Soc. Nat. Hist. II. 263, Dec. 1S47 ; with 

 a woodcut. 



DESCKIPTION. 



Animal not observed. 



Shell minute, cylindrical, rounded at apex, thin, 

 shining, translucent, of a wine-yellow color, regularly 

 striated by lines of growth. Spire of five or six closely 

 revolving, rounded whorls, deeply separated at the 

 sutures. Aperture nearly round or semi-oval, obliquely 

 limited by the penultimate whorl, armed with four slen- 

 der denticles, the largest of them on the transverse lip, 

 one on the columellar lip, and two on the outer lip, all 

 disposed so as to form the arms of a cross. The lip is 

 slightly reflexed, and indented opposite the base of the 

 two labial denticles ; at the columella, it rises against a 

 distinct umbilical perforation. 



Length one-tenth of an inch, breadth one-twentieth of 

 an inch. 



