Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

Online Dictionary of Invertebrate Zoology 837that has adapted to a habitat or condition during the courseof evolution.speciation n. [L. species, kind] The division of a phyletic line;the process of species multiplication; the origin of discontinuitiesbetween populations resulting from the developmentof reproductive isolating mechanisms. see allopatry,sympatric speciation.species n.; sing. & pl. [L. species, kind] A group of interbreeding(or potentially interbreeding) natural populationsthat are reproductively isolated from other such groups.see subspecies, isolate.species group A group of closely related species, usually withpartially overlapping ranges.species inquirenda A species of doubtful status due to inadequatedescription and lack of preserved specimens.species name 1. A scientific name of a taxon at the rank ofspecies. 2. A binomen, the combination of a generic nameand a specific name.species nova New species; sp. nov.; sp. n.specific character A common feature or structure in all individualsof a species.specific density see economic densityspecific epithet see specific namespecificity n. [L. species, kind] Condition of an individual orgroup of organisms being specific to a host, locale, etc. seehost specificity.specific name The second name in a binomen and in a trinomen.specophile see sphecophilespectrum n.; pl. spectra [L. spectrum, appearance] A statisticalsurvey of species distribution.specular membrane see mirrorspeculum n.; pl. -ula, ums [L. dim. specere, to look at] 1. Anocellus. see eyespots 2. (ARTHRO: Insecta) a. In Lepidoptera,the brilliant metallic markings, or transparent spotson the wing. b. The thin, delicate membrane of the tym-