BUL1MTJS. 283 



The epiphragm is white, pearly, and opaque ; it fills up 

 the aperture, and when pushed out by the animal, gene- 

 rally falls entire. It may be seen in numbers about 

 their winter quarters. Its outline is represented. 



7. BULJMUS LUBRICUS, MtJLLER. 

 PLATE LII. FIGURE 4. 



B. testa parva, ovato-oblonga, imperforata, pellucida, cor- 

 nea, laevi, nitidissima ; apertura ovali ; labro simplici. 



SYNONYMS AND REFERENCES. 



Helix ludrica, MULLER, Verm. Hist. I. 104. 

 Hulimus lulricus, DRAP. 75, pi. 4, f. 24. 



DESHAYES, in Lamarck, VIII. 239. 

 SAY, E.xped. St. Peter's, II. 259. 

 GOULD, Inverlebrata, 193, f. 124. 

 ADAMS, Vermont Mollusca, 7. 

 Achatina lubrica, MENKE, Synop. 2d ed. 



PFEIFFER, Monog. Helic. Viv. II. 272. 

 Zita liibrica, LEACH, Moll. p. 114. 

 Ciundla Itihrica, JEFFKKVS, Linn. Trans. XVI. 327. 

 Cohimna lubrica, JAN, CaUil. 5. 

 Styloicles lubriaa, FITZI.\';KK, Syst. 105. 



For other synonyms, see PFEIFFER'S Monograph, 

 and GOULD'S Inverlebrata, &c. 



DESCRIPTION. 



ANIMAL. Head, back, and tentacles blue-black, foot 

 paler, shorter than the shell ; lower tentacles short. 



SHELL small, thin, transparent, oblong-oval ; epider- 

 mis smoky horn-color, smooth, very bright and shining ; 

 whorls five or six, somewhat rounded ; apex obtuse ; 

 suture somewhat impressed ; aperture lateral, oval, its 



