TY - JOUR
T1 - Two New Cave-Dwelling Species of the Short-Tailed Whipscorpion Genus Rowlandius (Arachnida: Schizomida: Hubbardiidae) from Northeastern Brazil, with Comments on Male Dimorphism
AU - Santos, Adalberto J.
AU - Ferreira, Rodrigo Lopes
AU - Buzatto, Bruno A.
N1 - Copyright the Author(s) 2013. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.
PY - 2013/5/22
Y1 - 2013/5/22
N2 - Two new species of the arachnid order Schizomida, Rowlandius ubajara sp. nov. and Rowlandius potiguar sp. nov., are described based on both male and female specimens collected in caves from northeastern Brazil. Rowlandius ubajara is known only from the Ubajara Cave, in the state of Ceara; R. potiguar is recorded from 20 caves of the Apodi Limestone Group, in the state of Rio Grande do Norte. A remarkable dimorphism in male pedipalp length is described and analyzed in R. potiguar. The distribution of male pedipalp length is clearly bimodal in the species, but the two male morphs (homeomorphic and heteromorphic) present some overlap in the sizes of this structure. Moreover, males show a steeper allometry in pedipalp length than females, indicating that this trait is under a different selective regime in males and in females.
AB - Two new species of the arachnid order Schizomida, Rowlandius ubajara sp. nov. and Rowlandius potiguar sp. nov., are described based on both male and female specimens collected in caves from northeastern Brazil. Rowlandius ubajara is known only from the Ubajara Cave, in the state of Ceara; R. potiguar is recorded from 20 caves of the Apodi Limestone Group, in the state of Rio Grande do Norte. A remarkable dimorphism in male pedipalp length is described and analyzed in R. potiguar. The distribution of male pedipalp length is clearly bimodal in the species, but the two male morphs (homeomorphic and heteromorphic) present some overlap in the sizes of this structure. Moreover, males show a steeper allometry in pedipalp length than females, indicating that this trait is under a different selective regime in males and in females.
U2 - 10.1371/journal.pone.0063616
DO - 10.1371/journal.pone.0063616
M3 - Article
C2 - 23723989
SN - 1932-6203
VL - 8
SP - 1
EP - 12
JO - PLoS ONE
JF - PLoS ONE
IS - 5
M1 - e63616
ER -