Search Term Record
Metadata
Name |
Operculum |
Number of Object records |
48 |
Related Records
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Alvania beanii
Fifteen turbinate, marine snail shells. The shells are gray in color with approximately five whorls. The shells have growth lines and deep sutures between whorls. The shells are dextral with oval-shaped apertures.
Record Type: Object
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Alvania punctura
Sixteen turbinate, marine snail shells. The shells are gray in color with five whorls. Onamentation consists of vertical striations and growth lines. The sutures between whorls are deep and darker in color. The shells are dextral, with oval-shaped apertures.
Record Type: Object
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Amphibola crenata
Two trochoid snail shells that are marine and terrestrial. The exteriors are dull and gray to brown in color. Internally, the shells are tan to brown. The shells have three to four whorls, deep, well-defined sutures, and are covered with slightly raised transverse growth lines. The dextral shells have oval shaped apertures and slightly open umbilici.
Record Type: Object
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Angiola lineata
Eight turbinate, marine snail shells. The ornamentation on the exterior is smooth and the interior displays lirae inside the outer lip. The shells are tan in color with multiple narrow, dark brown transverse lines along each of the six whorls. The whorls are separated by fine sutures and the body whorl is inflated. The shells are dextral, with oval-shaped apertures and a siphonal notch.
Record Type: Object
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Aporrhais pespelecani
Four turriform shaped marine snail shells with a multi-pointed outer lip. The shells are off-white and light tan in color. The shells have eight whorls separated by deep sutures and nodules on each whorl. The apertures appear narrow and oddly shaped.
Record Type: Object
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Architectonica nobilis
Isolated marine snail shell with a low spired, trochoid, conispiral shell that is heavily ornamented with four beaded ribs in the first five whorls, then four ribs with growth lines in the body whorl.
Record Type: Object
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Architectonica perspectiva
Four lenticular, marine snail shells. The shells are tan in color with thin brown and white color bands. Brown dashes and growth lines spiral with the shells whorls, with the same dash pattern on the bases and inside of the umbilici. The shells have approximately five whorls that reach a flattened apex. The shells are dextral with oval shaped apertures. The umbilici are completely open and there appears to be denticles that wind up the umbilici.
Record Type: Object
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Astralium sp.
Five opercula. Each operculum has one side that is light tan and glossy with a spiral coloration which gives the appears of a whorl. The alternate side is a dark copper brown and is flat with visible striations.
Record Type: Object
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Bolma rugosa
One lenticular, marine snail shell. The shell has four whorls and the coloration consists of an iridescent cream color with a pink and green sheen. Dorsal ornamentation consists of raised striae along the outer edge of the whorls with a line of nodules just above the striae. The apertural side has raised striae that wrap around a completely closed umbilicus and is slightly at a raised angle toward the aperture. The shell is dextral with a circula...
Record Type: Object
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Campeloma decisum
Six turbinate, marine snail shells. The shells are brown in color each with four rounded whorls. The ornamentation is simple with brown to dark brown color bands running across the shells. The shells are dextral with "teardrop" shaped apertures.
Record Type: Object
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Chondropoma dentatum
Eight turbinate, terrestrial snail shells. The shells are white to faded brown in color. The shells have four slightly rounded whorls with deep sutures. The ornamentation consists of tiny vertical and horizontal striae that form a tiny grid pattern across each whorl. The shells are dextral, with oval-shaped apertures.
Record Type: Object
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Cincinnatia integra
Three turbinate, freshwater snail shells. The exteriors are smooth varying only in coloration which ranges in color from light gray to white. Each shell has four whorls. These shells are very small and with little to no ornamentation. The dextral shells are dextral with tear-drop shaped apertures.
Record Type: Object
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Cyclophorus semisulcatus
One lenticular, terrestrial snail shell. The shell is off-white in color with a singular dark brown color band on the lowest whorl and spots of light brown covering the shell. There are four whorls on the shell with deep sutures and an open umbilicus. The shell is dextral with an semi-circular shaped aperture and a wide, thick inner lip.
Record Type: Object
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Elimia caelatura
Five turbinate freshwater snail shells. The exteriors of the shells are a dull brown color with ribs and nodules. The shells have three to five flat whorls with sutures that form small ledges between the whorls. The shells are dextral with oval-shaped apertures.
Record Type: Object
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Epitonium scalare
One turbinate, marine snail shell. The shell is off-white in color. There are six whorls, each whorl separated by a very deep suture. There are highly raised axial costae on each whorl (the only place where the whorls meet). The shell is dextral, with an oval, to near circular, shaped aperture.
Record Type: Object
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Eutrochatella pulchella
Two trochoid, terrestrial snail shells. The coloration of the shells ranges from off-white to gray with darker spots of gray adding minor ornamentation. The shells have six whorls with small nodules covering the body whorls. Striations cover the entire exterior of the shells with some areas having a slightly thicker peristome. The shells are dextral with oval shaped apertures.
Record Type: Object
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Excavata costata
Two lenticular, terrestrial snail shells. One is a creamy tan color and the other is light gray in color. Raised striae and growth lines run horizontally around the shells. The shells are dextral with tear-drop shaped apertures.
Record Type: Object
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Fasciolaria tulipa
One thick, heavy operculum. Ovate in shape, chestnut-colored with incised grooves.
Record Type: Object
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Filopaludina bengalensis
One turbinate, marine snail shell. The shell is light brown in color with four whorls. The shell has brown and tan color bands travelling horizontally to the apex along the entire shell. The shell is dextral with a "teardrop" shaped aperture.
Record Type: Object
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Helicina fasciata
Two lenticular, terrestrial snail shells. The exteriors and interiors of the shells are ivory in color. Shell 21-358.2 has brown color bands. The shells have four whorls and shallow, well-defined sutures. The dextral shells have oval shaped apertures, and thin lips that are reflected onto their bases.
Record Type: Object
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Helicina orbiculata
Two trochoid, terrestrial snail shells. The intact shell is white to off-white with five whorls. There is little ornamentation and all whorls are all relatively smooth. The shell is dextral with a "D" shaped aperture. The second shell is in numerous fragments and extremely fragile.
Record Type: Object
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Io fluvialis
Three turbinate, freshwater snail shells. The exteriors are tan to brown and dull in appearance. Internally, the shells are cream and slightly iridescent. The shells have five whorls, shallow sutures, and spines near the sutures on the body and middle whorls. The periostracum has flaked off the spines and apices of the shells. The shells are dextral with oval-shaped apertures.
Record Type: Object
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Janthina janthina
Twenty-one lenticular, marine snail shells (12 pictured). The shells are lavender purple and white. The shells have approximately two to three whorls each. Coloration is mostly white on top, but purple underneath. The shells have growth lines and vertical striations. The apertures are mostly "D" shaped, but some have intricate curves inside the aperture.
Record Type: Object
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Lanistes boltenianus
One lenticular, marine snail shell. The shell is brown in color with four whorls. The exterior is smooth, with slightly darker growth lines. The shell is considered to be hyperstrophic sinistral since the snail body would have been dextral but the shell appears sinistral. The shell has a circular shaped aperture.
Record Type: Object
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Leptoxis carinata
Five turbinate, freshwater shells. The shells are off-white to light gray, some having darker color bands. Each shell has five whorls that are separated by carina. The shells are dextral, with "D" shaped apertures.
Record Type: Object
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Littorina littorea
Three turbinate, marine snail shells. The shells are tan in color with darker areas. There are seven whorls with varying suture depth. The largest shell has very deep sutures while the smaller shells have very shallow sutures. The shells are ornamented with very shallow striae that are close together and create lines of lighter colors. The shells are dextral with elliptical shaped apertures and thin lips.
Record Type: Object
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Lunella torquata
An operculum of a marine snail shell. The glossy exterior has spiral, swirl patterns in tans and browns. The matte interior is beige and is marked with two large spiral raised ribs with nodules. The spaces surrounding the ribs and nodules are covered in sediment.
Record Type: Object
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Melanopsis costata
One turbinate, marine snail shell. The shell's coloration consists of a mix of dark gray, white and rusty red, in the form of varying color bands. The shell has very subtle sutures separating its three whorls and prominent raised vertical striations on each whorl. The shell is dextral, with a teardrop-shaped aperture.
Record Type: Object
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Melanopsis laevigata
Two turriform, marine snail shells. The shells are dark brown in color with six whorls. The shells are dark in color and have color bands that get darker. The whorls are black and the bottom-most whorl is a lighter shade of brown. The shells have vertical striations throughout and growth lines. The shells are dextral with teardrop-shaped apertures. Thin outer lip, the inner lip has a smooth parietal callus.
Record Type: Object
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Nerita tessellata
One lenticular sea snail shell. The exterior of the shell is a dull white with black color bands, running transverse each whorl giving a checkered effect. The apex of the shell is white. The shell has five to six whorls with deep, distinct sutures. The dextral shell has a large teardrop shaped aperture with numerous small teeth on the interior of the lip, which is not reflected.
Record Type: Object
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Phasianella sp.
Two large opercula. The opercula are a creamy off-white and tan in color. On the dorsal side there are growth lines and a small raised whorl. The ventral side is lighter in color with a more glossy sheen to it. There are no growth lines visible.
Record Type: Object
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Pila ampullacea
Two globose, light-brown freshwater shells. The interior of each shell is white. Shell 21-006.1 is the smaller shell with four whorls. Shell 21-006.2 is the larger shell with five whorls. Both have wide body whorls and vertical striations across each whorl. The shells are dextral, with "teardrop" shaped apertures.
Record Type: Object
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Pleurocera canaliculata
One turriform, freshwater snail shell. The shell is a dull white with tan color bands at the sutures. Transverse growth lines can be seen covering the exterior of the shell, though the shells show age and wear. The shell has eight flat whorls and the sutures form small ledges between each whorl. The shell is dextral with a small, irregular oval-shaped aperture.
Record Type: Object
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Pleurocera canaliculata
One turriform, freshwater snail shell. The shell is tan with transverse growth lines. Sutures form small ledges between the five flat whorls. The dextral shell has a small, irregular oval-shaped aperture. The thin outer lip shows slight damage.
Record Type: Object
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Pomacea paludosa
Three globose, freshwater snail shells. The exteriors are light brown to tan with much lighter shades of brown on the interior. Each shell has four whorls with vertical striations. The body whorl is inflated. The dextral shells have tear-drop shaped apertures.
Record Type: Object
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Pomacea paludosa - 1855
Eight globose, freshwater snail shells. The colorations are light brown, tan or white. Shell 21-014.5 is the lightest in coloration. Each shell has five whorls. The whorls decrease in size approaching the apex, with the body whorl being the widest. Vertical striations run across each whorl. The shells are dextral with "teardrop" shaped apertures. 21-014.9 is a dark brown operculum that accompanies the shells. Miss Murray and G.W. White collect...
Record Type: Object
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Smaragdia viridis
One small marine slipper snail shell. The rounded shell is smooth, beige in color with a slight glossy appearance. The shelf covers half of the basal side of the shell. The aperture is a "D" shape and fine teeth are present near the apertural lip.
Record Type: Object
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Truncatella costata
There are two turbinate, terrestrial snail shells. The shells are white in color with four whorls. The shells have growth lines and subtle sutures between whorls. The shells have a rounded (or truncated) apex. The shells are dextral, with oval-shaped apertures.
Record Type: Object
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Truncatella subcylindrica
Eighteen turbinate, terrestrial adult snail shells. The shells are whitish to gray in color. Each shell has three to four whorls. The shells have deep sutures between whorls and growth lines. The shells are dextral, with oval-shaped apertures.
Record Type: Object
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Turbinidae indeterminate
Three hundred and thirty-eight marine snail opercula. The thick opercula are slightly reflective. One side is white with beige to brown translucent mottling. The opposite side is beige to orange brown; the coloring form swirls originating from an off-centered point.
Record Type: Object
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Turritella bicingulata
One turriform, marine snail shell. The shell has tightly coiled whorls which form an elongated cone. Coloration is light brown to brown. Each shell has seven whorls separated by deep sutures. Each whorl has horizontal and vertical striations, and irregular vertical color banding that varies in color from white to brown. The shell is dextral, with an oval-shaped aperture with a sharp outer lip.
Record Type: Object
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Turritella communis
Four turriform, marine snail shells. Coloration ranges from white to light tan. The shells have between ten to fifteen whorls, with deep sutures between each whorl. There are striations and there are growth bands going up the shell. There are three spiral ridges or ribs that run horizontally along each whorl. The shells are dextral and have circular shaped apertures.
Record Type: Object
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Valvata sincera
Seven minute, lenticular freshwater snail shells. The exteriors are white and covered with transverse growth lines. The shells have two whorls, deep sutures, and open umbilici. The dextral shells have rounded apertures.
Record Type: Object
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Viviparus contectus
Six marine, turbinate snail shells. The shells are brown in color, except for specimen 21-087.3, which is pink in color. Each shell has five rounded whorls with deep sutures. The ornamentation consists of subtle horizontal color bands varying from light to dark. The shell exteriors are smooth with vertical striations or growth lines along each whorl. The shells are dextral, with oval-shaped apertures. Accompanying the shells, are three small oper...
Record Type: Object
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Viviparus georgianus
Sample of tightly packed cluster of fossilized gastropods cemented with limestone cement. Many in the large cluster are broken and several casts are present where shells once were. One small sample of three shells cemented together and three isolated shells are also present.
Record Type: Object
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Viviparus subpurpureus
Seven marine, turbinate snail shells. The shells are white to gray in color. Each shell has four whorls that are smooth and contain vertical striations. The shells are dextral, with oval-shaped apertures.
Record Type: Object
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Viviparus viviparus
Eleven turbinate, marine snail shells. The shells range in color from white to tan to brown. There are approximately four whorls to each shell; however, some shells are significantly smaller in size and contain less whorls. The whorls are separated by pronounced sutures. Horizontal color bands tan to pink in color and vertical growth lines are easily recognizable. The shells are dextral with oval-shaped apertures. One specimen still has the oper...
Record Type: Object
