How many valid species of fish are there ? How many valid saltwater species of fish are there ? How many species are in a particular genus ? How many valid species are in a particular family ? How many valid species are in a particular order ? How many valid species are in a particular class ? How can I find out how many species were described by a particular Author ? How can I display the taxonomic hierarchical ranking of a species or of other taxa ? I know the common name, how do I find the scientific name and then view pictures ? How can I find the Scientific Names of the Disney fish characters in "Finding Nemo" ? What is a good mnemonic for remembering the main taxonomic rankings ? Why are less than 104 000 species displayed in the Species List ? How many Eponyms has a particular author been the recipient of ? How can I sort a list of Authors by the number of Species described ? How can I find out more information about a particular author ? How can I generate a fish checklist for a place or country ? How can I Create and Manage my own Gallery of Fish Pictures ? How can I increase the number of rows displayed on a page ? Why do the scientific names of fishes change ? How can I show the pictures of a particular species ? How can I show all the pictures of species in a particular genus ? How can I show the pictures of all species in a particular family ? How can I show pictures of 2 or more different species on the same page ? How can I display all the pictures of species in a particular family taken by a particular photographer ? How many valid species still have their original name How many species were described in a particular year How can I show pictures of undescribed species How can I list undescribed species which have pictures How can I show the co-authors of a particular author that were involved in describing a new species or genus.