 | Academy of Natural Sciences of Philadelphia - 1817 - 590 páginas
...longitudinally wrinkled. Spire prominent, acute. Suture not much impressed. Aperture dilated, ovate. Columella much narrowed near the base, so that the view may be extended from the base almost to the interior apex of the shell. Length seven-tenths of an inch nearly;... | |
 | William Nicholson - 1819 - 424 páginas
...longitudinally wrinkled. Spire prominent, acute. Suture not much impressed. Aperture dilated, ovate. Columella much narrowed near the base, so that the view may be extended from the base almost to the interior apex of the shell. Length seventcnths of an inch nearly... | |
 | William Nicholson - 1819 - 426 páginas
...longitudinally wrinkled. Spire prominent, acute. Suture not much impressed. Aperture dilated, ovate. Columella much narrowed near the base, so that the view may be extended from the base almost to the interior apex of the shell. Length seventenths of an inch nearly... | |
 | Academy of Natural Sciences of Philadelphia - 1821 - 490 páginas
...impressed suture. 2. P. *elvngata. Shell heterostrophe, pale yel* lowish, very fragile, diaphanous, oblong; whirls six or seven; spire tapering, acute at the...apex. Inhabits shores of Illinois. Length 7-10 inch. ANIMAL deep black, immaculate, above and beneath; tcntacula setaceous, a white annulation at base.... | |
 | Academy of Natural Sciences of Philadelphia - 1821 - 494 páginas
...impressed suture. 2. P. *elongata. Shell heterostrophe, pale yellowish, very fragile, diaphanous, oblong ; whirls six or seven ; spire tapering, acute at the...shell ; columella much narrowed near the base, so thai the view, may be partially extended from the base towards the apex. Inhabits shores of Illinois.... | |
 | Academy of Natural Sciences of Philadelphia - 1821 - 496 páginas
...impressed suture. 2. P. *elongata. Shell heterostro'phe, pale yellowish, very fragile, diaphanous, oblong ; whirls six or seven; spire tapering, acute at the...attenuated above, about half as long as the shell ; columetta much narrowed near the base, so that the view, may be partially extended from the base... | |
 | Augustus Addison Gould - 1841 - 440 páginas
...heterostrophe, pale-yellowish, very fragile, diaphanous, ohlong ; whorls six or seven ; spire tapering, acute at tip ; suture slightly impressed ; aperture not dilated,...partially extended from the base towards the apex." (SAY.) Length J inch, breadth j inch, divergence 34°. Found in stagnant waters in all the northern... | |
 | 1857 - 532 páginas
...hetcrestrophe, pale-yellowish, very fragile, diaphanous, oblong ; whorls six or seven ; spire tapering} acute at tip ; suture slightly impressed ; aperture not dilated,...partially extended from the base towards the apex.'" (SAY.) Length £ inch, breadth ^ inch, divergence 34°. Animal dusky, the head above of an orange hue;... | |
 | 1857 - 536 páginas
...whorls six or seven ; spire tapering, acute at tip ; suture slightly impressed ; aperture not iiihited, attenuated above, about half as long as the shell...partially extended from the base towards the apex." (SAT.) Length ^ inch, breadth J inch. divergence 34°. Animal dusky, the head above of an orange hue... | |
 | 1867 - 898 páginas
...ii ID. I-1 •>•>!'"-- — Shell heterostrophe, pale yellowish, very fragile, diaphanous, oblong, whirls six or seven ; spire tapering, acute at the...attenuated above, about half as long as the shell ; colnmella much narrowed near the base, so that the view may be partially extended from the base towards... | |
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Shell heterostrophe, pale yellowish, very fragile, diaphanous, oblong, whorls six or seven; spire tapering, acute at the tip; suture slightly impressed; aperture not dilated, attenuated above, about half as long as the shell; columella much narrowed near... 
