Conus larvatus (Pilsbry & Johnson, 1917)





The shell is extremely slender, the length about 38times the diameter, fusiform. Spire produced, composed of flat whorls, the beaded periphery projecting above the suture; apical whorls lost. The last whorl is angular, the angle set with 25 bead-like tubercles, which are a little lengthened in the spiral direction; elsewhere, above and below the angle, it has close, even fine spiral cords with very sharp axial striation in the intervals. Upward, towards the shoulder, the striae slowly retract. The aperture is extremely narrow. The inner lip is excavated in its lower fourth (1). 

Length (truncated) 33, diam. 9.5 mm.; 5  ½  whorls remaining. 

Type No. 2550, A. N. S. P. 

This species, C. gabbi and C. pernodosus, were lumped by Gabb under C. orbignyi Audouin, a recent species inhabiting the Eastern Seas. C. gracilissimus Guppy, from the Oligocene of Jamaica, is 
closely allied, but it is a distinct species, with wide, flat, revolving costae (1). 

C. larvatus is narrower than C. tortuosostriatus Toula, and differs conspicuously in contour. Toula's species has more resemblance to C. gracilissimus Guppy.  (1)





Conus larvatus (2)

Plate XXI

fig. 10: mm. 33,0

Oligocene – Santo Domingo


Conus orbignyi (Audouin, 1831)

Holotype MNHN

mm. 53,5 x 20






Bibliografia Consultata


·         (1) - Pilsbry, H. A., and Johnson, 1917. Oligocene Fossils from the Neighborhood of Cartegena, Columbia, with Notes on Some Haitian Species. Proceedings of the Academy of Natural Sciences of Philadelphia, 69

·         (2) - Pilsbry HA. Revision of W. M. Gabb’s Tertiary Mollusca of Santo Domingo. Proc Acad Nat Sci Phila.1921; 73: 305–435.