Amplirhagada katerana Solem 1981
Creators: name: Köhler, Frank
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Camaenidae
Amplirhagada
Amplirhagada katerana

description: <i>Amplirhagada katerana</i> Solem, 1981 <i>Amplirhagada katerana</i> Solem, 1981a: 198–201, figs. 37d, 41a, 43e–f. <b>Material examined</b>. AMS C463692, WAM S36601 (preserved specimens, Bonaparte Archipelago, Montague Sound, Kater’s Island, 14°26'51.6"S 125°31'07.1"E), WAM S36878 (preserved specimens, 14°26'52"S 125°31'13"E), AMS C463695, WAM S36879 (preserved specimens, 14°26'49"S 125°31'15"E), AMS C463696, WAM S36880 (preserved specimens, 14°26'56.8"S 125°31'11.0"E) (Fig. 1). Sealing strategy. Free sealer. <b>Shell</b> (Fig. 27A–C, Pl. 1.13). Semi-globose with medium spire; solid. Periphery evenly rounded to angulate. Umbilicus forming a chink or narrowly winding opening, 80–90 percent concealed by columellar reflection. Background colour horn; with diffuse to well marked, dark brown, moderately to very thick sub-sutural and mod-whorl bands; bands may fuse with each other concealing background colour completely; ventral colour, outer lip and inner lip horn. Protoconch c. 2.3 mm in diameter, comprising 2 whorls, sculptured by fine, indistinct axial lirae. Teleoconch smooth except for axial growth lines. Angle of aperture 30°; outer lip rounded, sharp to moderately thick, slightly expanded, not or slightly reflected, basal and palatal node absent. Parietal wall of inner lip inconspicuous. <b>Pallial morphology</b>. Pallial cavity deep, comprising one whorl. Mottled pigmentation on mantle dark greyish brown. Kidney extending about half of pallial cavity. <b>Genital morphology</b> (Figs. 28–29). Penis straight, of about same length as anterior part of oviduct. Vas deferens forms simple loop or coils before entering penis. Penial retractor muscle shorter than penis of same length. Penial sheath evenly thick. Penial verge short (<b> 1</b> ⁄ <b> 8</b> –¼ of penial chamber), broad, with pointed tip. Penial wall covered by small pustules, arranged in rows over entire length of inner penial wall. Main stimulatory pilaster not differentiated. Three pilasters are formed by rows of thickened pustules comprising entire length of inner penial wall. Vas deferens slightly undulated, entering penial sheath close to apical portion. Vagina elongated, tubular. Inner vaginal wall with smooth longitudinal pilasters. Spermathecal duct and head not well-differentiated; duct moderately thick, internally with smooth longitudinal pilasters; head globular to elongately inflated, internally smooth, with delicate wall; only tip of head connected with oviduct by connective tissue. Free oviduct comprising more than half of anterior part of oviduct, more or less straight. Spermoviduct slightly longer than anterior part of oviduct. Talon embedded in albumen gland close to anterior end of albumen gland. <b>Radular morphology</b> (Fig. 27E–F). Rectangular. Tooth formula C+14–20+3–4+15–22. In aerage with 126±7.0 rows of teeth, 30.7±0.1 rows per mm (n = 2). Central teeth with bluntly pointed, triangular mesocones, shorter than base of tooth; ectocones vestigial. Lateral teeth with bluntly pointed, triangular mesocones, shorter than base of tooth; ectocones and endocones vestigial. Marginal teeth with rounded mesocones; ectocones shorter and narrower than mesocones, simple; endocones vestigial. <b>Comparative remarks</b>. Shell more conical in shape and whorls more flattened in diameter than in any species listed so far. Dark brown colour of most shells with pronounced different ventral colour is very characteristic. Penial interior with three longitudinal pilasters formed by enlarged wall pustules is peculiar to this species. For comparison with other species also see Solem (1981a: 198–199).
description: Published as part of <i>Köhler, Frank, 2010, Uncovering Local Endemism in the Kimberley, Western Australia: Description of New Species of the Genus Amplirhagada Iredale, 1933 (Pulmonata: Camaenidae), pp. 217-284 in Records of the Australian Museum 62 (2)</i> on pages 236-237, DOI: 10.3853/j.0067-1975.62.2010.1554, http://zenodo.org/record/5239086
description: {"references": ["Solem, A., 1981 a. Camaenid land snails from Western and central Australia (Mollusca: Pulmonata: Camaenidae). II. Taxa from the Kimberley, Amplirhagada Iredale 1933. Records of the Western Australian Museum Supplement 11: 147 - 320."]}