Image from page 180 of "Water reptiles of the past and present" (1914) (14586414668), Gustav Mützel

'fig. 81. —hydrns bicolor; sea-snake. (from brehm) identifier: waterreptilesofp1914will title: water reptiles of the past and present year: 1914 (1910s) authors: williston, samuel wendell, 1851-1918 subjects: aquatic reptiles publisher: chicago, ill. , the university of chicago press contributing library: boston public library digitizing sponsor: boston public library.