• Source: Agladrillia

Agladrillia is a genus of sea snails, marine gastropod mollusks in the family Drilliidae.




Description


A specific characteristic for this genus is that the outer lip is strongly drawn in towards the base.
(Description by W.P. Woodring) The shell is small and moderately slender, with the body whorl featuring a varix some distance from the outer lip. The protoconch is rather stout, consisting of about two smooth whorls.
The aperture is long and narrow, with an anterior canal that is strongly constricted. The siphonal notch is moderately deep and asymmetrical, with a siphonal fasciole that is hardly inflated. The base of the outer lip has a relatively deep notch, and the inner lip is detached. The anal sinus is deep and adjoins the suture, with a rounded apex. The parietal wall is heavily callused where it adjoins the suture. The sculpture of the shell consists of narrow axial ribs and spiral threads or grooves. The anal fasciole bears a swelling across which obscure prolongations of the axial ribs extend.
This genus is proposed for small “Drillias” that have a narrow aperture, definitely formed anterior canal, rather deep stromboid notch on the outer lip, and an asymmetrical siphonal notch. The sculpture of Agladrillia s. s. consists of axials and spirals and the anal fasciole is set off by discrepant sculpture.




Species


Species within the genus Agladrillia include:

Agladrillia anadelgado Rolán et al., 2007
Agladrillia aureola Fallon, 2016
Agladrillia badia McLean & Poorman, 1971
Agladrillia benjamini (Bartsch, 1915)
† Agladrillia callothyra Woodring, 1928
Agladrillia flucticulus McLean & Poorman, 1971
Agladrillia fuegiensis (Smith E. A., 1888)
Agladrillia gorgonensis McLean & Poorman, 1971
Agladrillia leptalea W.P. Woodring, 1928
Agladrillia macella (Melvill, 1923)
† Agladrillia nakazaense MacNeil, 1961
Agladrillia nitens (Hinds, 1843)
Agladrillia piscorum Kilburn, 1988
Agladrillia plicatella (Dall, 1908)
Agladrillia pudica (Hinds, 1843)
Agladrillia rhodochroa (Dautzenberg, 1900)
Agladrillia torquata Fallon, 2016
Agladrillia ukuminxa Kilburn, 1988
Species brought into synonymy

† Agladrillia oyamai Shuto, 1965: synonym of † Thelecytharella oyamai (Shuto, 1965), synonym of Otitoma oyamai (Shuto, 1965)
† Agladrillia serra Woodring, 1928: synonym of Eumetadrillia serra (Woodring, 1928)




References



Woodring, W.P. (1928). "Miocene mollusks from Bowden, Jamaica. 2. Gastropods and discussion of results". Carnegie Institution of Washington Publication. 385 (VII): 158. Retrieved 2024-06-26. This article incorporates text from this source, which is in the public domain.




External links



WMSDB - Worldwide Mollusc Species Data Base: family Drilliidae

Kata Kunci Pencarian:

• Agladrillia
• Agladrillia anadelgado
• Agladrillia nakazaense
• Agladrillia leptalea
• Agladrillia callothyra
• Agladrillia badia
• Agladrillia torquata
• Agladrillia aureola
• Agladrillia flucticulus
• Agladrillia gorgonensis