lamprey
3.large anadromous lamprey sometimes used as food; destructive of native fish fauna in the Great Lakes.
4.Any of various primitive eellike vertebrates of the class Agnatha, such as a lamprey, lacking jaws and true teeth and having a circular, sucking mouth.
5.Phylogenetic analysis showed that the ELR motif in mammalian may be typical evolved for chemotactic special cell from the ancient IL8.It is absent in lamprey and only has substitution in piscine IL-8.
6.A kidneylike organ, being either part of the most anterior pair of three pairs of organs in a vertebrate embryo, disappearing early in the embryonic development of higher vertebrates, but functioning as a kidney in some simple vertebrates, such as the lamprey.
7.The tree built from the 26 apolipoprotein sequences by above method clearly shows:(1) The common ancestor of ApoA-I ApoA-II,ApoA-IV,ApoE may appear 460 million years ago in an ordovician vertebrate which may be related with the major apolipoprotein LAL 1 and LAL2 in Lamprey from the evidence of sequence alignment;
