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 4. Morphometrics for Cathorops higuchii. Standard length is expressed in millimeters, other measurements are percents of standard length. Ranges include paratypes only. | Holotype | n | Males | n | Females |
|---|
| Mean | Range | Mean | Range |
|---|
| Standard length (mm) | 129.0 | 11 | - | 125.0-163.0 | 11 | - | 97.0-192.0 |
|---|
| Head length | 23.3 | 11 | 26.0 | 23.3-28.5 | 11 | 24.6 | 23.3-26.0 |
|---|
| Snout length | 8.0 | 11 | 7.1 | 6.3-8.0 | 11 | 6.7 | 6.1-8.0 |
|---|
| Distance between anterior nostrils | 5.1 | 11 | 4.9 | 4.6-5.7 | 11 | 4.7 | 4.0-5.3 |
|---|
| Distance between posterior nostrils | 6.7 | 11 | 6.0 | 5.3-7.1 | 11 | 5.9 | 5.1-6.5 |
|---|
| Distance between anterior nostril to orbit | 6.4 | 11 | 6.8 | 6.2-7.7 | 11 | 6.7 | 6.1-7.2 |
|---|
| Distance between posterior nostril to orbit | 4.7 | 11 | 4.9 | 4.6-5.7 | 11 | 4.9 | 4.7-5.2 |
|---|
| Orbital diameter | 4.1 | 11 | 3.9 | 3.3-4.3 | 11 | 3.7 | 3.4-4.4 |
|---|
| Interorbital distance | 12.7 | 11 | 13.3 | 12.6-14.7 | 11 | 12.9 | 12.1-13.8 |
|---|
| Maxillary barbel length | 41.5 | 11 | 37.6 | 30.6-42.2 | 11 | 36.8 | 31.5-43.3 |
|---|
| External mental barbel length | 29.0 | 11 | 26.2 | 22.5-30.3 | 11 | 25.5 | 20.2-29.4 |
|---|
| Internal mental barbel length | 17.4 | 11 | 17.1 | 13.7-19.3 | 11 | 16.8 | 13.8-19.6 |
|---|
| Distance from snout to maxillary barbel | 1.6 | 11 | 1.9 | 0.8-2.7 | 11 | 2.4 | 1.4-3.2 |
|---|
| Distance from snout to external mental barbel | 3.0 | 11 | 3.9 | 3.3-4.6 | 11 | 4.0 | 3.2-5.1 |
|---|
| Distance from snout to internal mental barbel | 2.9 | 11 | 3.0 | 2.5-3.9 | 11 | 3.0 | 2.4-4.0 |
|---|
| Mouth width | 9.5 | 11 | 9.8 | 8.8-10.8 | 11 | 9.7 | 8.5-11.3 |
|---|
| Lower-jaw length | 2.3 | 11 | 2.0 | 1.5-2.9 | 11 | 1.8 | 1.0-2.2 |
|---|
| Premaxilla length | 1.9 | 11 | 1.4 | 0.9-1.9 | 11 | 1.5 | 1.3-1.7 |
|---|
| Premaxilla width | 7.7 | 11 | 7.0 | 6.2-7.7 | 11 | 6.7 | 5.7-7.7 |
|---|
| Distance between accessory tooth plates | 5.3 | 11 | 5.3 | 4.3-6.6 | 11 | 4.9 | 4.1-5.9 |
|---|
| Length of accessory tooth plates | 3.8 | 11 | 3.4 | 2.8-3.8 | 11 | 3.6 | 2.6-4.7 |
|---|
| Width of accessory tooth plates | 1.6 | 11 | 1.1 | 0.7-1.6 | 11 | 1.6 | 0.8-2.2 |
|---|
| Width of cephalic shield at lateral ethmoid area | 12.4 | 11 | 12.7 | 12.2-13.6 | 11 | 12.4 | 11.9-13.0 |
|---|
| Width of cephalic shield at frontals area | 7.7 | 11 | 7.2 | 6.3-7.7 | 10 | 7.2 | 6.9-7.8 |
|---|
| Width of cephalic shield at epioccipital area | 11.2 | 11 | 12.1 | 11.2-12.8 | 11 | 12.2 | 11.6-13.4 |
|---|
| Width of cephalic shield at supracleithrum area | 17.6 | 11 | 17.7 | 17.0-18.6 | 11 | 17.8 | 16.9-18.3 |
|---|
| Distance between lateral ethmoid and supracleithrum | 20.8 | 10 | 22.7 | 20.8-25.0 | 11 | 22.4 | 20.4-25.9 |
|---|
| Distance between snout and post. margin of dorsomedian groove of neurocranium | 21.5 | 11 | 23.7 | 21.5-26.3 | 11 | 22.5 | 20.9-25.6 |
|---|
| Supraoccipital process length | 11.3 | 11 | 9.9 | 9.0-11.3 | 11 | 10.5 | 9.1-12.1 |
|---|
| Supraoccipital process width | 3.0 | 11 | 2.9 | 2.7-3.1 | 11 | 3.0 | 2.7-3.3 |
|---|
| Nuchal-plate length | 6.3 | 11 | 6.6 | 6.3-7.2 | 11 | 6.8 | 6.3-7.5 |
|---|
| Nuchal-plate width | 7.4 | 11 | 7.5 | 7.2-8.2 | 11 | 7.4 | 7.2-7.9 |
|---|
| Body depth | 17.7 | 11 | 17.6 | 16.5-18.6 | 11 | 17.9 | 16.9-19.0 |
|---|
| Body width | 20.8 | 11 | 21.3 | 20.6-21.7 | 11 | 21.1 | 20.1-22.4 |
|---|
| Distance from snout to pectoral fin | 21.6 | 11 | 23.0 | 21.0-25.9 | 11 | 22.1 | 20.6-25.9 |
|---|
| Distance from snout to dorsal fin | 33.6 | 11 | 35.7 | 33.2-38.8 | 11 | 34.8 | 32.3-37.4 |
|---|
| Distance from snout to pelvic fin | 50.6 | 11 | 51.5 | 49.0-53.3 | 11 | 51.2 | 48.9-53.3 |
|---|
| Distance from snout to adipose fin | 75.2 | 11 | 76.3 | 74.7-79.4 | 11 | 76.3 | 74.7-78.2 |
|---|
| Distance from snout to anal fin | 68.8 | 11 | 66.4 | 63.7-68.8 | 11 | 65.3 | 62.3-68.3 |
|---|
| Caudal-peduncle height | 9.1 | 11 | 8.7 | 8.0-9.5 | 11 | 8.3 | 7.8-8.9 |
|---|
| Pectoral-fin spine length | 19.6 | 11 | 19.2 | 17.4-20.0 | 11 | 19.1 | 17.7-20.7 |
|---|
| Dorsal-fin spine length | 20.2 | 11 | 20.3 | 18.6-21.7 | 11 | 20.6 | 18.8-22.2 |
|---|
| Pelvic-fin base length | 4.3 | 11 | 3.9 | 3.1-4.7 | 11 | 4.0 | 3.7-4.4 |
|---|
| Pelvic-fin height | 13.2 | 11 | 13.1 | 10.1-13.9 | 11 | 15.3 | 12.3-17.6 |
|---|
| Adipose-fin base length | 8.1 | 11 | 7.9 | 6.5-9.7 | 11 | 7.5 | 6.0-8.8 |
|---|
| Adipose-fin height | 3.9 | 11 | 3.9 | 3.5-4.3 | 11 | 3.7 | 2.8-4.6 |
|---|
| Anal-fin base length | 17.4 | 11 | 18.9 | 16.7-20.0 | 11 | 19.5 | 18.1-20.0 |
|---|
| Anal-fin height | 13.0 | 11 | 13.3 | 10.5-15.7 | 11 | 14.6 | 13.5-15.8 |
|---|
| Caudal-fin upper lobe length | 32.3 | 11 | 32.8 | 30.1-41.4 | 9 | 32.7 | 30.3-35.1 |
|---|
| Caudal-fin lower lobe length | 29.9 | 10 | 30.6 | 26.9-35.1 | 8 | 32.5 | 29.4-39.9 |
|---|