Abbottella (Abbottella) abbotti Bartsch, 1946

Watters, G. Thomas, 2013, New taxa and distributional notes on Abbottella and related taxa (Gastropoda: Littorinoidea: Annulariidae), Zootaxa 3646 (1), pp. 1-22 : 11

Abbottella (Abbottella) abbotti Bartsch, 1946

Figures 3 A–E , 7 F

Type material. USNM 504108, holotype.

Type locality. Near Laguna, Samaná Bay [sic, probable error for Samaná Peninsula, see below], Dominican Republic.

Other material examined. UF 215981, El Valle, Samaná Province, Dominican Republic; UF 215983, 2 km S of El Valle, Samaná Province, Dominican Republic, at 20 m; UF 215980, 2 km S of El Valle, Samaná Province, Dominican Republic; UF 215982, hills E and W of El Valle, Samaná Province, Dominican Republic; GTW 10829a, Cayo Levantado, Samaná Province, Dominican Republic.

Distribution and habitat. This species occurs in the Sierra de Samaná of the Cordillera Septentrional. Bartsch (1946) did not give any additional information on the type locality in his description of this species. However, under his description of Lagopoma lagopoma , he stated that Laguna was 4 miles north of Samaná. This is probably Punta Laguna Salada, which is adjacent to El Valle, the source of most of our material. Contrary to Bartsch’s description, Laguna is not on Samaná Bay but on the north coast of the peninsula; this was probably an error for Samaná Peninsula. All of our records are for the El Valle and the Las Galeras areas on the northeast coast of the peninsula. This species is probably distributed around the base of the outcrop between these two areas, a distance of ca. 20 km. Snails occur on and at the base of the steep limestone walls in cool, shaded areas with abundant vegetation and mosses.

Comparison with other species. Abbottella abbotti is one of a group of small species on the Samaná Peninsula characterized by thorny sculpture. It differs from similar species in its deeply fimbriated outer lip and coarse sculpture arranged in prominent keels.

Figures

FIGURE 7. Distributions are approximate. Base map courtesy of NASA. A. Abbottella (Abbottella) calliotropis new species. B. Abbottella (Abbottella) diadema new species. C. Abbottella (Abbottella) dichroa new species. D. Leiabbottella soluta (Pfeiffer, 1852). E. Leiabbottella thompsoni new species. F. Abbottella (Abbottella) abbotti Bartsch, 1946. G. Abbottella (Abbottella) crossei (Pilsbry, 1933). H. Abbottella (Abbottella) milleacantha Watters & Duffy, 2010. I. Rolleia haitensis Bartsch, 1946.

FIGURE 3. A – E. Abbottella (Abbottella) abbotti Bartsch, 1946. A – C. UF 215980, 5.6 mm width. D. UF 215983, 6.0 mm width. E. UF 215981, 5.2 mm width. F. Choanopoma adolfi Pfeiffer, 1852. Pfeiffer, 1854: pl. 48, fig. 8. G – I. Abbottella (Abbottella) cf. adolfi adolfi (Pfeiffer, 1852). GTW 7020 c, 5 mm width. J – L. Abbottella (Abbottella) adolfi peninsularis Bartsch, 1946. GTW 9430 a, 7.8 mm width. M. Abbottella (Abbottella) newcombi (Crosse, 1873). Syntype (MNHN 5436), 5.7 mm length. Photo courtesy of MNHN. N – R. Abbottella (Abbottella) aenea Watters, 2010. N – P. GTW 14181 a, 6.5 mm width. Q. GTW 14181 a, 6.1 mm width. R. Paratype (OSUM 35490), 6.0 mm width. S – W. Abbottella (Abbottella) crossei (Pilsbry, 1933). S – U. GTW 9432 a, 7.3 mm width. V. UF 216146, 7.6 mm width. W. UF 216146, 7.2 mm width. X – BB. Abbottella (Abbottella) milleacantha Watters & Duffy, 2010. X – Z. Holotype (UF 420728), 7.5 mm width. AA. Grego, 7.4 mm width. BB. Grego, 8.1 mm width.