The Wormpep database is in fasta format. It is made up of the name of the clone from which the gene is partially or wholly derived, in this case the cosmid B0041, followed by a number.
Every accession number corresponds to one particular protein sequence.
Therefore, the same accession number can be associated with several different CDS identifiers. If you think the annotation for any protein is inappropriate, wrong, misleading or can be improved please let us know. Every time the sequence changes, but still represents the same CDS, the version number gets incremented by one. The Wormpep database also contains each of the individual proteins derived from alternatively spliced sequences. This may cause different CDS' to get the same name, e.g. F38E1.11 and F38E11.1.