ncbi_getbyname(taxa, gene = "COI", seqrange = "1:3000",
getrelated = FALSE, verbose = TRUE)"1:1000". This is the range of
sequence lengths to search for. So "1:1000" means search for sequences from 1 to 1000
characters in length.TRUE, gets the longest sequences of a species
in the same genus as the one searched for. If FALSE, returns nothing if no match
found.TRUE (default), informative messages printed.ncbi_search, ncbi_getbyid