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. 2015 Aug 12;(517):39–57. doi: 10.3897/zookeys.517.10154

Figure 9.

Figure 9.

SEM of microstructure pattern on surface of teleoconch fragments of Koreozospeum nodongense sp. n. paratype (NMBE 534361/2) showing tightly spaced irregular spiral striae of densely interconnected pits.