BLAUNERIA. 175 



than the spire ; labium two-toothed ; lower tooth small ; labrum without 

 teeth. Length one fifth of an inch. Inhabits Rhode Island. 



This species is remarkable for the elevation of its spire, and it is the 

 smallest species I have seen, and was presented to me by Dr. GrifHth. 

 (Say). 



Melampus Borealis. Shell ovate-acute, elongated ; pale horn- 

 color, with darker longitudinal bands ; whorls 6 or 7, with a re vol vino- 

 impressed line below the suture ; spire elevated, conical ; columella 

 with three distant and distinct plaits, the middle one most prominent ; 

 aperture obovate-acute. Length, about one fourth of an inch. 



This small species of Melnmpus has been found sparingly on the coast 

 of Rhode Island, by Lieut. Brown of Newport. It is similar in form to a 

 ^Bulimus, and is very unlike the common species with which it associates. 

 (Conrad). 



Genus BLAUNERIA Shuttleworth. 



Shell imperforate, oblongly turreted, thin ; aperture narrow, elon- 

 gated ; parietal wall with one fold near the columella, which is subtrun- 

 cated ; peristome simple, not reflected. (Pfr.) 



This genus was proposed for the following species. Its 

 habits and the characteristics of the animal remove it from 

 Achatina and Oleacina, where it was formerly placed. 



BLAUNERIA PELLUCIDA Pfeiffer. 



Plate LIII. Figure 2. 



Testa sinistrorsa, ovata, elongata, hyalina, polita, dilute cornea ; spira 

 obtusa, anfractibus ad septem convexiusculis ; sutura lineari ; apertura 

 an^usta, labro acuto ; columella brevi, lamella intus decurrente superne 

 instructs. (Gld.) 



SYNONYMS AND REFERENCES. 



Achatina jJellucida Pfeiffer, in Wiegm. Archiv. 1840, i. 252. 



Gould in Binn. Terr. JIoll. ii. 294. 

 Tvrnaiellina Cubensis Pfeiffer, Symb. ii. 130; Monog. Helic. Viv. ii. 391. 

 Chemnitz, ed. 2, Pupa. p. 151, pi. xviii. figs. 16, 17. 

 Blauneria pellucida Pfeiffer, Malalc. BI. 1854; Mou. Auric Viv. 153. 

 Odoslomia? Cubensis Poey, Mem i. 394. 

 Oleacina Cubensis Adams, Gen. ii. 106, absq. desc. 



