Laotiinae Pall-Gergely 2024, subfam. nov.

Subfamily Laotiinae Páll-Gergely subfam. nov. (Fig. 13C–F) h t t p: / / z o o b a n k.o r g/ 3D 2 6 7 C 2 2 -E B D 9- 4 5B 5- A7 5 1- B5BA463EC511 Tope genus: Laotia Saurin, 1953. Content: Laotia Saurin, 1953 (Fig. 13C) and Messageria Bavay & Dautzenberg, 1904 (Fig. 13D–F), containing three and two species, respectively. Diagnosis: Inner tube missing, but a series of distinct inner sutural chambers situated below the suture; as the shell grows, old chambers are closed and new ones open, four or five open simultaneously; microtunnels long (start in umbilical area), two or three connected to a single sutural chamber. Distribution: Northern Laos, Northern Vietnam, Southern China (Guangxi) (Fig. 11).