Cat-eLog Right Arrow Loricariidae Right Arrow Hypostominae Right Arrow Lasiancistrus

Down arrow Cat-eLog Data Sheet
Scientific Name Lasiancistrus scolymus  Nijssen & Isbrücker, 1985
Common Names Pearl Lasiancistrus
Netzmuster-Harnischwels (Germany)
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).
Down arrow Species Information
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.
Down arrow Habitat Information
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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IUCN Red List Category Not Evaluated
Temperature 25.0-27.0°C or 77-80.6°F (Show species within this range)
Down arrow Husbandry Information
Breeding Unreported.
Breeding Reports There is no breeding report.
Down arrow Further Information
Reference Bijdr. Dierkd.v. 55 (no. 2) - pp242 - Figs. 1-3
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Last Update 2008 Apr 25 05:47 (species record created: 2001 May 05 00:00)