 Summary of Lasiancistrus |
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| New spp. / time |  | | | |  | | | | | | | | | | | 1750 | 1770 | 1790 | 1810 | 1830 | 1850 | 1870 | 1890 | 1910 | 1930 | 1950 | 1970 | 1990 | 2010 |
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| Species | There are 26 "species" in our database. Lasiancistrus tentaculatus has the most images (i: 16). |
| Pronunciation | LASS ee an SISS truss |
| Etymology | Greek, lasios, -a, -on = hairy + Greek, agkistron = hook |
| Identification | Adult Lasiancistrus can be separated from all other loricariids by the presence of whisker-like odontodes on the cheeks. In addition, they have evertible cheek odontodes; three rows of plates on the caudal peduncle; and a modified, bar-shaped opercle. The caudal fin is slightly emarginate to forked, with the lower lobe longer than upper. Nuptial males have tentacules on the pectoral-fin spines longer than their associated odontodes; and transluscent tentacules on the snout that have odontodes associated with them. Nuptial males lack hypertrophied odontodes on top of the head and lack long, bristle-like odontodes on the leading edge of the pectoral-fin spine. |
| Sexing | Snout of nuptial males almost square (vs. rounded in females and juveniles). Adult males of most species (except Lasiancistrus tentaculatus) with whisker-like odontodes at anterolateral corner of snout; males of L. tentaculatus have tentacules instead of whisker-like odontodes along anterior margin of snout. Nuptial males have tentacules longer than their associated odontodes on the pectoral-fin spine. |
| Size | Smallest 75 mm, largest 198 mm, average 135mm, most commonly 150mm. All SL. |
| Distribution |
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| Genus Thumbnails |
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