Cerithium balteatum Philippi 1848

Cerithium balteatum Philippi, 1848

Cerithium planum Anton, 1838:66 [no figure; type not found; type locality: not given; nomen dubium].—Philippi, 1849:7, pl. 1: fig. 18.—Sowerby, 1855:862, pl. 181: figs. 111–113; 1865, pl. 12: fig. 79.—Kobelt, 1895:187, pl. 34: fig. 10.—Cernohorsky, 1972:65, pl. 14: fig. 7 [not Cerithium planum Anton, 1838; is C. balteatum Philippi, 1848].

Cerithium balteatum Philippi, 1848:22–23 [type not found; type locality unknown; neotype, herein selected: USNM 695399, Georgia Cove, Rambi Id, Vanua Levu, Fiji, 13.3 mm × 5.4 mm]; 1849:4, pl. 1: fig. 10.—Sowerby, 1855:862–863, pl. 181: figs. 116, 117; 1865, pl. 11: fig. 72a,b.—Tryon, 1887:131, pl. 23: figs. 2, 3.—Kobelt, 1895:189–190, pl 34: figs. 16, 17.

Cerithium invagination Gould, 1849:120, pl. 10: fig. 169 [holotype: USNM 5569; type locality: Fiji].—Sowerby. 1865, pl. 10: fig. 64a,b.—Tryon, 1887:131, pl. 23: fig. 97.—Kobelt. 1895:189, pl 34: figs. 14, 15.

Cerithium coronation Sowerby, 1855:863, pl. 181: fig. 118 [holotype: BMNH 1986285; type locality: Philippines; not Cerithium coronatum Bruguière, 1792]; 1865, pl. 8: fig. 48a,b.—Tryon, 1887:131.

Cerithium custos Bayle, 1880:244 [new name for Cerithium coronatum Sowerby. 1855].

Cerithium nigrobalteatum E. A. Smith, 1884:65, pl. 5: fig. n. [holotype: BMNH 1882.12.6.85; type locality: Prince of Wales Channel, Torres Strait].—Cernohorsky, 1978:52, pl. 13: fig. 7.

Cerithium planum Philippi [sic].–Tryon, 1887:131, pl. 23: figs. 97–99.

Cerithium planiusculum Kobelt, 1895:188, pl. 34: fig. 11 [name proposed for Cerithium planum Anton, 1838, as depicted by Sowerby (1855, pl. 181: figs. 111–113) and Sowerby (1865, pl. 12: fig. 79) but not Cerithium planum Anton, 1838, as depicted by Philippi (1849, pl. 1: fig. 18)].

Cerithium balteatum Philippi.—Cernohorsky, 1972:65, pl. 14: fig. 5 [not Cerithium balteatum Philippi; is C. phoxum Watson, 1880].

Cerithium (Thericium) schmidti Ladd, 1972:30, pl. 9: figs. 13, 14 [holotype: USNM 650470, paratype USNM 650420; type locality: Tagpochau Limestone of Saipan, Miocene].

DESCRIPTION.—Shell (Figures 17, 18): Shell fusiform, elongate, pagoda-shaped, comprising about 12 convex whorls, reaching 27.7 mm length and 8.1 mm width. Protoconch (Figure 18C) comprises 2.5 smooth whorls. Early teleoconch (Figure 18D) sculptured with two major spiral cords, minor spiral lirae, and wide, straight, axial ribs. Adult teleoconch sculpture extremely variable, generally comprising 0–4 major, spiral cords, many fine spiral striae and incised lines, and 0–18 axial ribs. Presutural spiral thread frequently beaded. Major spiral cords drawn out, thickened, forming beads or nodes where axial ribs cross spirals. Axial ribs very wide in some specimens, dominant on middle whorls, sometimes weak on penultimate and body whorls. Suture deeply impressed, wide postsutural ramp on adult whorls. Former varices thick, randomly distributed. Body whorl sculptured with 6 or 7 spiral, beaded cords and weak, colabral axial ribs. Two weak, beaded to spinose spirals define margin of basal constriction of body whorl. Base of body whorl deeply excavated, sculptured with many fine, spiral lirae. Aperture ovate, about one-fourth the shell length. Anterior canal well developed, long, tubular, slightly reflected to left of shell axis. Anal canal small, well defined by parietal columellar tooth. Columella concave, white, with narrow callus. Outer lip of aperture convex, finely crenulate, with weak, elongate, interior denticles. Shell color highly variable, generally with brown bands over white background. Nodes and ribs usually white. Early whorls bluish between presutural axial ribs. Anterior canal frequently dark brown; wide, presutural, brown, spiral band common. Measurements (Table 12). Periostracum thin.

Radula (Figure 19): Type-2 radular ribbon (Figure 3B) very small, about one twenty-first the shell length. Rachidian tooth (Figure 19C,D) triangular-shaped; basal plate narrower than anterior front and with pair of basal lunule ridges and with posteriorly extending, long, central ridge. Cutting edge of rachidian tooth with long central pointed cusp, flanked on each side by 2 or 3 small pointed denticles. Lateral tooth (Figure 19D) with broad basal plate having strong central ridge, and long, lateral-posterior, outer extension. Cutting edge of lateral tooth with large, blunt main cusp, small inner flanking denticle and 3 or 4 outer flanking denticles. Marginal teeth (Figure 19A,B) with long, narrow, curved shafts, hooked, comb-like apices and narrow bases. Inner marginal tooth apex with long spoon-shaped main cusp, 2 or 3 inner flanking denticles, and 1 or 2 outer flanking denticles. Outer marginal tooth same, but lacking outer flanking denticles.

Anatomy: Unknown.

SYNONYMIC

Cerithium balteatum is a species of sea snail, a marine gastropod mollusk in the family Cerithiidae.