Revision of the species of the genus Cathorops (Siluriformes: Ariidae) from Mesoamerica and the Central American Caribbean, with description of three new species Author Marceniuk, Alexandre P. Museu de Zoologia da Universidade de São Paulo, Caixa Postal 42494, 04218 - 970 São Paulo, SP, Brazil a_marceniuk@hotmail.com Author Betancur-R, Ricardo Department of Biological Sciences, Auburn University, 331 Funchess Hall, Auburn, AL 36849, USA betanri@auburn.edu text Neotropical Ichthyology 2008 2008-03-31 6 1 25 25 http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000100004&lng=en&tlng=en journal article 312306 10.1590/S1679-62252008000100004 20063e32-2edc-4e82-9daa-ca17286cea93 1982-0224 5419649
Table 2. Morphometrics for Cathorops aguadulce. Standard length is expressed in millimeters, other measurements are percents of standard length. Ranges include paratypes only.
HolotypenMeanRange
Standard length (mm)227.08-134.0-227.0
Head length26.0---
Snout length9.3710.69.3-11.6
Distance between anterior nostrils4.0---
Distance between posterior nostrils4.9---
Distance between anterior nostril and orbit6.9---
Distance between posterior nostril and orbit5.5---
Orbital diameter4.686.04.6-6.9
Interorbital distance11.8811.19.9-12.3
Maxillary barbel length25.9829.525.9-32.1
External mental barbel length18.5219.418.5-20.4
Internal mental barbel length12.8213.312.8-13.9
Distance from snout to maxillary barbel1.8---
Distance from snout to external mental barbel3.8---
Distance from snout to internal mental barbel3.4---
Mouth width9.5---
Premaxilla length1.4---
Premaxilla width5.4---
Width of cephalic shield at lateral ethmoid area11.8---
Width of cephalic shield at frontal area6.5---
Width of cephalic shield at supracleithrum area17.3---
Distance between lateral ethmoid and supracleithrum21.2722.221.2-22.8
Distance between snout and post. margin of dorsomedian groove of neurocranium25.4724.922.9-26.4
Supraoccipital process length12.1713.911.5-16.3
Supraoccipital process width2.522.52.5-2.6
Nuchal-plate length5.7---
Nuchal-plate width6.3---
Body depth17.8---
Body width19.2---
Distance from snout to pectoral fin22.9---
Distance from snout to dorsal fin39.7739.939.0-40.7
Distance from snout to pelvic fin53.3753.451.0-56.1
Distance from snout to adipose fin74.5776.674.5-79.9
Distance from snout to anal fin69.2766.763.8-69.4
Caudal-peduncle depth8.078.07.7-8.3
Pectoral-fin spine length17.2---
Dorsal-fin spine length18.2719.217.5-21.9
Pelvic-fin base length3.9---
Pelvic-fin height17.1217.017.0-17.1
Adipose-fin base length5.576.64.9-8.0
Adipose-fin height3.1---
Anal-fin base length16.5717.416.4-19.7
Anal-fin height17.1---
Caudal-fin upper lobe length34.4---
Caudal-fin lower lobe length29.1---