|Cat-eLog Data Sheet|
|Scientific Name||Lasiancistrus scolymus Nijssen & Isbrücker, 1985|
|Common Names||Pearl Lasiancistrus
|Type Locality||Rio Aripuana, Humboldt, 10°10'S, 59°27'W, Rio Madeira system, Mato Grosso do Sul, Brazil.|
|Pronunciation||LASS ee an SISS truss|
|Etymology||Greek, lasios, -a, -on = hairy + Greek, agkistron = hook This specific epithet literally means thistle (scolymus=thistle).|
|Size||144mm or 5.7" SL. Find near, nearer or same sized spp.|
|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.|
|Distribution||South America: Madeira River basin.
Amazon, Middle Amazon (Solimoes), Madeira (click on these areas to find other species found there)
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|Temperature||25.0-27.0°C or 77-80.6°F (Show species within this range)|
|Breeding Reports||There is no breeding report.|
|References||Bijdr. Dierkd.v. 55 (no. 2) - pp242 - Figs. 1-3|
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|More on Lasiancistrus scolymus|
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|Last Update||2008 Apr 25 05:47 (species record created: 2001 May 05 00:00)|