eugeniae shows an exclusive apomorphy
, gall indumentary with trichomes (38), not shared with others Stephomyia.
The presence of an internal odontophore in relation to the mouth frame ossicles is an apomorphy
for recent asteroids (Mooi and David, 2000).
Timema have only a few, large appendices while (considerably longer) Euphasmatodea species have dozens of smaller bulbs, suggesting the increases in the numbers of appendices are an apomorphy
of Euphasmatodea and/or due to allometric differences.
of metriorhynchids is state (1) instead of state (0) as was said in Young et al.
This infraorder represents a monophyletic taxon, which is supported by one syn(apomorphy
) character (27-1; absence of the elongated plate sensillum).
It is not clear why Brooks  considered this feature as an apomorphy
for the Nothochrysa group, when earlier Brooks and Barnard  reported several genera in the group as being without microtholi and it was known that the structures occur within Pimachrysa.
This has been strongly refuted by Scholtz and Kamenz (2006) who argue that booklungs are an apomorphy
of Araneae, that the Araneae are monophyletic and that they resulted from a single terrestrialisation event in their common stem lineage.
The detection of this apomorphy
can be correlated to ecological peculiarities of this species, whose studied population is relatively isolated in the lakes inside the Parque Ambiental de Belem.
He argued that the unusual pretarsal structure can be considered as an apomorphy
of the genus and noted the striking similarity of the toothed shape of the claw to emesine species of assassin bugs living in spider webs.
of relatively short spermathecal duct and tube like spermathecal gland, broadly long arms of vertical process and paramere with three teeth like processes closely relate concinnulus, evanescens, festivus, koenigii, olivaceus, poecilus, rosaceus, similis, solenis and transversalis.
Transition-transversion ratios were counted by hand from apomorphy
Though Solenostomidae - the sister-group of Syngnathidae - share many characters and a common evolutionary history with them, the new movement of seahorse tail can be considered a real apomorphy
into this family (Hale, 1993).