“Aeneator castillai new species
Figures 45-50
DESCRIPTION. Shell large, fusiform, length of aperture and canal more than half the length of the shell; canal relatively short, twisted. Shell light brown under a thin periostracum, often with a lighter colored band coinciding with the periphery. Whorls six, protoconch and early whorls eroded; whorls convex but for a concave subsutural area; suture not deeply impressed. Axial sculpture on penultimate whorl of about 16 low ribs, strong across the periphery but faint in the subsutural area; final whorl with weak sculpture; axial sculpture lacking altogether on the final half whorl. Spiral sculpture of fine cords alternating in strength, all cords in the concave subsutural area fine; those of the periphery and base coarser, frequently darker in color. Lip faintly lirate within, sinuate on upper part, final lip not expanded. Parietal and columellar area well defined, glazed.
Dimensions: height 78.7 mm, diameter 39.8 mm (holotype, Fig. 45); height 75.7 mm, diameter 37.8 mm (Fig. 47).
Radula (Fig. 50): typical for the genus, central and lateral teeth tricuspid.
MATERIAL. Chile: Coquimbo (LACM, Fig. 49), Los Vilos (LACM, Figs. 46-48), Papudo (LACM, type lot, Fig. 45), Zapallar (LACM), Quintero (LACM), Punta Penablanca (LACM). Specimens examined: 23.
TYPE MATERIAL. Nine specimens from the type locality, collected 29 March 1977, by Andrade, shrimp trawler GODEN WIND. Holotype, LACM 1986; paratypes, LACM 1987; paratypes, MNHN 200492; paratypes, MZICB 15.532; paratypes, USNM 784741.
TYPE LOCALITY. 300 m off Papudo, Chile (32°31'S; 71°54'N[sic]).
DISTRIBUTION. Coquimbo (29°55'S), to Punta Penablanca, Chile (33°22'S). Depth range: 200-450 m.
DIAGNOSIS. A species of Aeneator characterized by its rather short, twisted canal and the absence of axial ribs in the concave subsutural area. It differs from both A. fontainei and A. loisae in these features. Additionally it differs from the offshore form of A. fontainei in having more numerous spiral cords and a flesh colored surface. From A. loisae, it also differs in having a brown rather than white shell coloration.
REMARKS. The surface layers of the shell of A. castillai are particularly prone to erosion, leaving an unsculptured, chalky shell surface upon loss of the sculptured layer. A number of the specimens are partially or completely eroded (Fig. 49).
ETYMOLOGY. We are pleased to name this species after Dr. Juan Carlos Castilla, of the Universidad Catolica, Santiago.”
(McLean & Andrade, 1982: 14-15)
Aeneator castillai is een slakkensoort uit de familie van de Buccinidae.[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1982 door McLean & Andrade.
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