Bulimulus (Drymaeus) dukinfieldi Melvill, 1900

Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 51

Bulimulus (Drymaeus) dukinfieldi Melvill, 1900 Figs 60C-D , L19i

Bulimulus (Drymaeus) dukinfieldi Melvill 1900: 116, fig.

Bulimulus dukinfieldi ?; Breure 1979: 62.

Bulimulus dukenfieldi ; Simone 2006: 118, fig. 359.

Thaumastus dukinfieldi ; Simone 2006: 152, fig. 518.

Type locality.

"Salto Grande do Rio dos Patos (upper waters of Rio Ivahy), Paraná, Brazil".

Label.

"Salto Grande do Rio / dos Patos. (Upper waters of River Ivahy). / Paraná. Brazil.".

Dimensions.

"Long. 28, lat. 13 mm"; figured specimen herein H 28.1, D 14.8, W 5.9.

Type material.

NHMUK 1900.9.27.2, lectotype (ex Melvill).

Remarks.

Melvill wrote "Two specimens, precisely similar, were obligingly handed me by Mr. R. Dukinfield Darbishire"; "the type" was placed in the NHMUK collection, the whereabouts of the second specimen are unknown. The reference to "HT 1900.9.27.2" in Breure 1979 has to be interpreted as lectotype designation under Art. 74.6 ICZN. This shell seems to have been damaged several times during life-time, which may have influenced the shape of the shell and aperture. This is probably the reason why this taxon has been referred to different genera ( Simone 2006: 118, 152); the classification of Breure (1979) is here tentatively retained until further studies have clarified the systematic position of this nomen inquirendum.

Current systematic position.

Bulimulus (?) dukinfieldi Melvill, 1900. Nomen inquirendum.

Figures

Figure 60. Bulimulus species. A-B Bulimulus fuscus (Guilding, 1828), lectotype of Bulimus barbadensis Pfeiffer, 1853 NHMUK 1974054 (H = 21.3) C-D Bulimulus (?) dukinfieldi Melvill, 1900 [nomen inquirendum], lectotype NHM 1900.9.27.2 (H = 28.1) E-F Bulimulus cacticolus (Reeve, 1849), syntype NHMUK 20100515 (H = 24.4) G-H Bulimulus erectus (Reeve, 1849), syntype NHMUK 20100516 (H = 22.0) I-J Bulimulus mollicellus (Reeve, 1849), lectotype NHMUK 1975185 (H = 17.2) K-L Bulimulus coriaceus (Pfeiffer, 1857), syntype NHMUK 1975409 (H = 17.1). All enlarged.

Figure L 19. Labels. i Bulimulus (Drymaeus) dukinfieldi Melvill, 1900 ii Bulimus dunkeri Pfeiffer in Philippi 1846 iii Bulimulus (Peronaeus) durangoanus Martens, 1893 iv Bulimus dutaillyi Pfeiffer, 1857 v Bulimus dysoni Pfeiffer, 1846 vi Bulimus edwardsi Morelet, 1863.