山烙铁头蛇属在中国海南岛的发现（蛇亚目：蝰科：蝮亚科）

作者有幸在上海自然历史博物馆收藏中发现采于海南岛的山烙铁头蛇属（Ovophis Burger in Hoger and Romano Hoge,1981）标本1号。该属广泛分布于中国、东亚和东南亚大部地区，但在海南岛尚无报道。本文对该标本详加描记。根据其鳞被特征，特别是尾下鳞成单，将其鉴定为过去仅知分布于越南山区的越南山烙铁头蛇Ovophis tonkinensis (Bourret，1934）是为中国蛇类的新纪录。

ON THE OCCURRENCE OF THE SNAKE GENUS OVOPHIS (SERPENTES:VIPERIDAE:CROTALINAE) ON HAINAN ISLAND, CHINA

A specimen collected on Hainan Island and belonging to the pitviper genus \%Ovophis \% Burger in Hoge \%et\% Romano Hoge,1981 was fortuitously discovered in the collections of the Shanghai Museum of Natural History.This genus,though widely occurning in China and much of eastern and southeastern Asia,was previously unknown from Hainan Island.The specimen is here described in detail.Based on its scalation,especially its undivided subcaudal plates,it is referrable to the species \%Ovophis tonkinensis\% (Bourret,1934),previously known only from the mountains of Vietnam.