For species originally described from a set of syntypes, most of the existing syntypes are gradually being replaced by lectotypes. A lectotype is the single specimen selected from among the syntypes to serve as the only name-bearing type specimen, and is formally designated as such. Having a single name-bearing type reduces the potential for confusion, especially considering that it is not uncommon for a series of syntypes to contain specimens of more than one species.
The additional specimens from the original set of syntypes, after a lectotype has been designated from among them, are reduced to the status of paralectotype. They are no longer name-bearing types, though if the lectotype is lost or destroyed, it is generally preferrable to use a conspecific paralectotype as a replacement.
A redescription of Arostrilepis horrida (Linstow, 1901) and descriptions of two new species from Palaearctic microtine rodents, Arostrilepis macrocirrosa sp. n. and A. tenuicirrosa sp. n. (Cestoda: Hymenolepididae)
Jun 01, 2011; Abstract: The type species of the cestode genus Arostrilepis Mas-Coma et Tenora, 1997, Arostrilepis horrida (Linstow, 1901), is...