Range: Philippines and Solomon Is.
Description: Moderately small, moderately light to moderately solid. Last whorl ventricosely conical to conical; outline convex adapically, straight (right side) or concave (left side) below. Shoulder angulate. Spire of moderate height to high, slightly stepped; outline concave. Larval shell of 2-2.25 whorls, maximum diameter 0.8-0.9 mm. First 1-2 postnuclear whorls often weakly tuberculate. Teleoconch sutural ramps flat to slightly concave, with 0-1 increasing to 4-7 spiral grooves. Last whorl with spiral ribs from base to shoulder, sometimes ribs basally and ribbons adapically; grooves between axially striate containing a fine spiral rib and/or 1-3 spiral threads.
| Shell Morphometry | ||
|---|---|---|
| L | 25-35 mm | |
| RW | 0.07-0.12 g/mm | |
| RD | 0.53-0.59 | |
| PMD | 0.80-0.87 | |
| RSH | 0.22-0.25 | |
Ground colour white. Last whorl with spiral rows of brown dots on ribs; brown dots often reduced in large specimens. Dots fusing into spots and axial streaks below shoulder, above centre and occasionally also below centre, forming 1-2 or sometimes 3 spiral bands. Larval whorls white. Postnuclear sutural ramps with brown radial streaks and blotches. Aperture white.
Habitat and Habits: In 35-200 m.
Discussion: C. leobrerai resembles juvenile C. australis, which is distinguished by the less sigmoid left side of its last whorl, smaller number (3-4) of spiral grooves on the sutural ramps, 3 brown spiral bands on last whorl, and larger number of larval whorls (3.25 vs. 2-2.25). In similarly sized specimens, C. mucronatus differs in its straighter last whorl outline basally, its lower spire (RSH 0.13-0.22), and in a usually weaker spiral sculpture of last whorl; its larval shell also has more whorls (3) and is narrower (about 0.7 mm).
C. leobrerai range map
This section contains verbatim reproductions of the accounts of 316 species of Conus from the Indo-Pacific region, from Manual of the Living Conidae, by Röckel, Korn and Kohn (1995). They are reproduced with the kind permission of the present publisher, Conchbooks.
All plates and figures referred to in the text are also in Röckel, Korn & Kohn, 1995. Manual of the Living Conidae Vol. 1: Indo-Pacific Region.
The range maps have been modified so that each species account has it own map, rather than one map that showed the ranges of several species in the original work. This was necessary because each species account is on a separate page on the website and not confined to the order of accounts in the book.