Abbottella (Abbottella) adolfi peninsularis 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 : 13

Abbottella (Abbottella) adolfi peninsularis Bartsch, 1946

Figures 3 J–L, 8 H

Type material. USNM 504095, holotype.

Type locality. On the trail from Samaná to Rio San Juan, Samaná Peninsula.

Other material examined. UF 216164, 8 km W of Samaná, Samaná Province, Dominican Republic; UF 215974, 10 km E of Las Terrenas, Samaná Province, Dominican Republic at sea level; UF 215975, 8 km WNW of Sánchez, Samaná Province, Dominican Republic; UF 215976, 11 km E of Sánchez, Samaná Province, Dominican Republic; UF 215979a, b, 7 km E of Sánchez, Samaná Province, Dominican Republic; UF 215978a, b, 5 km E of Sánchez, Samaná Province, Dominican Republic; UF 215977, 10 km SW of Las Terrenas, Samaná Province, Dominican Republic; GTW 9430a, several km W of Sánchez, Samaná Province, Dominican Republic.

Distribution and habitat. Records place this species closer to Sánchez than to Rio San Juan in the Sierra de Samaná of the Cordillera Septentrional; also on the north coast of the peninsula near Las Terrenas. Specimens have been found at the base of limestone mogotes and chimneys in lowland rain forests on damp, algae-covered rocks; some areas are now cacao groves.

Comparison with other species. This subspecies is very similar to A. newcombi ( Figure 3 M), a species described without an exact locality. Both species have two prominent spiral cords in the umbilicus, nearly identical sculpture, and similar dark coloration. Abbottella newcombi has a lower spire and less developed outer lip than does A. a. peninsularis , but additional material may indicate that the two taxa are not distinct from each other, in which case the name A. newcombi would have priority.

Figures

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.