Cerodrillia thea

Cerodrillia thea is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.[1][2]

Cerodrillia thea
Shell of Cerodrillia thea
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Superfamily: Conoidea
Family: Drilliidae
Genus: Cerodrillia
Species:
C. thea
Binomial name
Cerodrillia thea
(Dall, 1884)
Synonyms[1]
  • Cymatosyrinx thea (Dall, 1884)
  • Drillia thea Dall, 1884

Description

The elongate shell size varies between 13 mm and 19 mm. The shell is ashy olivaceous, covered with a shiny very thin epidermis, and is claret-brown within the aperture. The whitish apex is small and rather blunt. There are eight, moderately convex, smooth whorls with eleven short, somewhat oblique, slightly curved, strong axial ribs, more prominent on the periphery and fading away towards the sutures and not distinctly differentiated from the interspaces. They are somewhat irregularly waved and concave anteriorly. The shell shows an evanescent spiral strife, not always visible, and eight or ten spiral raised threads on the anterior third of the body whorl. The body whorl is otherwise smooth. The notch is deep, rounded and leaving no fasciole. The short siphonal canal is straight. The sutures are distinct and slightly appressed. The wide, oval aperture is short and is internally claret brown. The inner lip shows a slight callus. The outer lip is much curved forward, polished and smooth within.[3][4]

Distribution

This species occurs in the Gulf of Mexico, the Caribbean Sea and the Lesser Antilles; in the Atlantic Ocean off Eastern Brazil at depths up to 203 m.

References
  1. Cerodrillia thea (Dall, 1884). 6 September 2011. Retrieved through: World Register of Marine Species.
  2. P. Bouchet; Yu. I. Kantor; A. Sysoev; N. Puillandre (2011). "A new operational classification of the Conoidea (Gastropoda)". Journal of Molluscan Studies. 77 (3): 273–308. doi:10.1093/mollus/eyr017.
  3. Dall, W. H. 1884. On a collection of shells sent from Florida by Mr. Henry Hemphill Proceedings of the United States National Museum 6(384) 318–342, pl. 10
  4. George Washington Tryon, Manual of Conchology vol. VI, p. 189; 1884 (described as Drillia thea)
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