Zebra hackeri xanthus Strebel, 1909

Breure, Abraham S. H., 2013, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda) in the Museum fuer Naturkunde, Berlin, ZooKeys 279, pp. 1-101 : 53

Zebra hackeri xanthus Strebel, 1909 Figs 25E-F, 25iii

Zebra hackeri xanthus Strebel 1909: 51, pl. 7 fig. 108.

Type locality.

[Mexico] "Dos Arroyos bei Acapulco".

Label.

"Dos Arryos / b. Acapulco", with a second, taxon label in Strebel’s handwriting.

Dimensions.

"43,6 × (24,0)28,3 [H × (Dmin)Dmax in mm]"; figured specimen herein H 57.4, D 31.8, W 6.4.

Type material.

ZMB 101833, holotype; H.H. Smith leg.

Remarks.

Strebel described this taxon as a “heterom[orph].” and from "ein unausgewachsenes Stück”. The shell, corresponding to Strebel’s figure 108, is thus the holotype. It may be noted that the taxon name xanthus was introduced three times by Strebel (1909) for a “heteromorph”; the others were Zebra princeps xanthus (1909: 20) and Zebra boucardi xanthus (1909: 74). The current systematic position follows Thompson (2011).

Current systematic position.

Orthalicidae , Orthalicus hackeri (Strebel, 1909).

Figures

Figure 25. Orthalicus species A-D Orthalicus undatus (Bruguiere, 1789) A-B, i Syntype of Zebra zoniferus naesiotes Strebel, 1909 ZMB 117785 (H = 53.4) C-D, ii Syntype of Zebra selectus Strebel, 1909 (H = 50.3) E-F, iii Orthalicus hackeri (Strebel, 1909), holotype of Zebra hackeri xanthus Strebel, 1909 ZMB 101833 (H = 57.4).