Authors: Matthew T Wayland Data type: morphological The file is a comma separated value (CSV) format suitable for input to the Acanthocephalan Proboscis Profiler software (http://acanthocephala.sourceforge.net). It includes data from one of the paratypes of Echinorhynchus bothniensis from the Bothnian Bay, Baltic Sea (specimen: b1.01). The file has 5 columns: specimen, group, hook, length and base. specimen - unique identifier for the specimen group - name of group (Echinorhynchus bothniensis and Echinorhynchus \'bothniensis\' are listed as bothniensis1 and bothniensis2, respectively) hook - numerical position of hook in longitudinal row as counted from the distal end of the probocis length - length of hook blade (micrometres) base - width of hook base (micrometres) File name: 2743.csv