Notes on some Siboga Expedition pipefishes previously referred to the genus Syngnathus

Syngnathus maxweberi Whitley, 1933 ( = S. punctatus Weber, 1913, preocc.) is referred to the genus Cosmocampus. Two lots of pipefishes from the """"Siboga"""" collections, referred to Syngnathus sp. by Weber, 1913, are described and provisionally identified as incompletely metamorphosed planktonic specimens of Penetopteryx taeniocephalus Lunel, 1891 (Sta. 136) and Enchelyocampus sp. (Sta. 252). Representative specimens of these, as well as the first known male of E. brauni Dawson & Allen, 1978, are illustrated.