Brotia armata, (BRANDT, 1968)

Strong, Ellen E., 2011, More than a gut feeling: utility of midgut anatomy in phylogeny of the Cerithioidea (Mollusca: Caenogastropoda), Zoological Journal of the Linnean Society 162 (3), pp. 585-630 : 605

BROTIA ARMATA (BRANDT, 1968)

Material examined

Thailand: Tung Salang Luang rapids [ USNM 794081; as Paracrostoma paludiformis (Yen, 1939) ].

Remarks

Very similar to Brotia pagodula (see Fig. 13A ), in shape and configuration of the inner crescentic pad, glandular pad, accessory marginal fold, and proximal tip of the major typhlosole. Brotia armata differs from the former primarily in the presence of a broader, more flattened outer crescentic pad, with only weak striae on the surface, an accessory marginal fold that extends back from the posterior tip of the outer crescentic pad, and typhlosoles that are fused only along the distal two-thirds.

Figures

Figure 13. Midgut anatomy of Pachychilidae. A, Brotia pagodula (ZMH 3891). B, Faunus ater (USNM 1143354). C, Pachychilus indiorum (AM C.324125). D, Potadoma cf. freethi (MRAC 796831). Scale bars: 1.0 mm; refer to the text for a list of anatomical abbreviations.