To resolve this difficulty, Internal Transcribed Spacer (ITS) sequences have been extensively used to differentiate among species, specifically cryptic species
which appear currently in the genus (Burgess et al., 2006; Alves et al., 2008).
Some limitations of studying cryptic organisms are the negative response of cryptic species
towards the presence of divers, their small size, and their camouflage ability, among others making traditional visual surveys difficult, and can also affect the significance level, which can take values of up to 45% (Stewart & Beukers, 2000; Willis, 2001).
An added advantage of becoming familiar with more commonly encountered species is the subsequent greater likelihood of seeing the more cryptic species
in later travels, simply because the more species you are familiar with, the more able you will be to pick out a 'new' species.
DNA barcodes can help in the routine identification of species in applied settings, in the detection of morphologically cryptic species
, for host-specific lineages, and in the association of morpho-logically distinct life cycle forms within a species.
was demonstrated, using various techniques, to be a complex of cryptic species
(Steck 1991; Selivon & Perondini 1998, 2007; Selivon et al.
This suggests the existence of a complex of at least two cryptic species
among the C.
Additionally, sequencing techniques permit the identification of cryptic species
such as C.
Recently, some pycnogonid species previously thought to have circumpolar distributions have been shown to be a cryptic species
complex (Krabbe et al, 2010; Weis et al, 2014; Domel et al, 2017).
Allopatric speciation within a cryptic species
complex of Australasian octopuses.
Chromosomal variation and genome size support existence of cryptic species
of Triatoma dimidiata with different epidemiological importance as Chagas disease vectors.
The pseudoscorpions are a taxonomically challenging group and some widely distributed species may actually constitute cryptic species
complexes that could be characterized by deep molecular divergences but otherwise display morphological stasis (Wilcox et al.