Cat-eLog Right Loricariidae Right Hypostominae Right Lasiancistrus  |  | 

Down Cat-eLog Data Sheet
Scientific Name Lasiancistrus sp. (L337)   
Common Names L337, Dotted Halffin Pleco
Prikket Halvfinnesugemalle (Denmark)
Pronunciation LASS ee an SISS truss
Etymology Greek, lasios, -a, -on = hairy + Greek, agkistron = hook 
Down Species Information
Size 150mm or 5.9" 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 Habitat Information
Distribution Rio Tocantins
Amazon, Lower Amazon, Tocantins (click on these areas to find other species found there)

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Temperature 24.0-27.0°C or 75.2-80.6°F (Show species within this range)
Down Husbandry Information
Breeding Unreported.
Breeding Reports There is no breeding report.
Down Further Information
Registered Keepers There is but a single registered keeper, view all "my cats" data.
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There are 2 records of this fish being seen, view them all.
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Last Update 2022 Jan 21 12:17 (species record created: 2006 Jul 31 00:00)