2?,4 



LAND AND FRESH-WATER SHELLS OF N. A. [PART I. 



Pupa museorum, 

 enlarged. 



Pwpa niMSCOruin, Lin. — Shell perforate, cylindrical, subfusiform, 

 oLtiise at both extremities ; epidermis dark chestnut-color, or bay ; whirls 

 six to seven, rounded, the anterior four of about equal 

 diameter; suture deep ; aperture lateral, nearly circular, 

 small, its diameter equal to two-thirds of the diameter 

 of the last whirl, a thin, testaceous deposit forming a 

 thickened margin internally, sometimes bearing an ob- 

 tuse tubercle ; upon the parietal wall is a single tubercle; 

 transverse margin subrellected ; lip slightly reflected. 

 Length 4, breadth Ij mill. 



Pupa badia, Adams, Bost. Journ. Nat. Hist. Ill, 331, pi. 

 lii, f. 18; Shells of Vermont, 157. — Gould, Bost. 

 Journ. Nat. Hist. Ill, 404 ; IV, 360.— DeKay, N. Y. 

 Moll. 49, pi. iv, f. 45.— Chemnitz, ed. 2, 117, pi. 

 XV, f. 25-29.— BiNNEY, Terr. Moll. 323, pi. Ixx, f. 3. 

 — W. G. BiNNEY, Terr. Moll. IV, 142. 

 Pupa museorum, Link^us, part, Pfeiffee, Mon. Hel. 

 Viv. IV, 666, &c. 

 Pupilta badia, Morse, Journ. Portl. Soc. I, 37, f. 89, 91, pi. x, f. 92 

 (1864) ; Amer. Nat. I, 609, f. 52 (1868). 



Found in the islands in the Gulf of St. Lawrence, and in 



Maine, Yermont, and New York. 

 Its range in Europe is very great, 

 being found from Siberia to Sicily, 

 England, Iceland, &c. 



The shell is often met with an 

 edentulate aperture. Such is the 

 specimen figured in the second edi- 

 tion of Chemnitz, and my figure 

 (Fig. 398), drawn from a Maine spe- 

 cimen. Fig. 399 is drawn from an 

 European individual of P. museorum. 



Jaw of American specimen slightly 

 arched, concave edge waving. 



The lingual membrane has 90 rows 

 of 29 teeth each (14—1—14). Central 

 teeth small, tricuspid, the laterals bicuspid, uncini serrated. 



Fie. 401, 



Fig. 398. 



Fig. 399. 



Pupa hadia 

 [Morse.] 



Pupa muscnrum. 

 [Morse.] 



Fig. 400. 



Jaw of Pnpa badia. [Morse.] 



Lingual (leutition of Pupa badia. [Mokse.] 



