The Collaborative International Dictionary of English v.0.48:
Sea adder \Sea" ad"der\ (Zool.) (a) The European fifteen-spined stickleback (Gasterosteus spinachia); -- called also bismore. (b) The European tanglefish, or pipefish (Syngnathus acus). [1913 Webster]The Collaborative International Dictionary of English v.0.48:
Bismer \Bis"mer\, n. 1. A rule steelyard. [Scot.] [1913 Webster] 2. (Zool.) The fifteen-spined (Gasterosteus spinachia). [1913 Webster]