P. verecunda ZBK:

ZRC 46316, (holotype), 131.6 mm SL; Vietnam: Hai Phong, Cat Ba Island, stream near eastern entrance of Trung Trang cave, 20°47'17"N; 107°00'04"E. CMK 14821 (2 paratypes), 84.8-97.5 mm SL; Vietnam: Hai Phong, Cat Ba Island, first unnamed stream on road from National Park headquarters to Gia Luan (Ra Luan), 1 km, 20°48'01"N; 106°59'03"E.