Cat-eLog Right Arrow Loricariidae Right Arrow Hypostominae Right Arrow Pterygoplichthys

Jump to next section Cat-eLog Data Sheet
Scientific NamePterygoplichthys weberi  Jonathan W. Armbruster and Lawrence M. Page, 2006
Common NameRanger Pleco
Type LocalityLaguna El Vaticano, Río Caqueta drainage, Caquetá, Florencia,Colombia,
Pronunciationterry gop LICK thees
EtymologyGreek, pterygion, diminutive of pteryx = wing, fin + Greek, hoplon = weapon + Greek, ichthys = fish. Named for Claude Weber of the Muséum d?histoire naturelle, Geneva.
Jump to next section Species Information
Size 197mm or 7.8" SL. Find near, nearer or same sized spp.
IdentificationPterygoplichthys can be identified by the number of rays in the dorsal fin. More than 10 indicates that it's a Pterygoplichthys. Most other plecos have 8 or fewer rays (in particular the larger Hypostomus species that are most likely to be confused with Pterygoplichthys).

Most similar to P. punctatus. Easiest identification character is the spots on the abdomen, which are few on this species and many on P. punctatus. For further details, see reference.
SexingComparison of the genital papilla in mature fish shows the differences in the sexes to the trained eye. In males this is a small yet thick stump which noticeably protrudes from the fish's undercarriage. In females it is less obvious and is recessed or lies flat with the body.
Jump to next section Habitat Information
DistributionUpper Amazon basin (Caqueta, Napo, Bobonaza and Amazon drainages are listed in original description)
Amazon, Upper Amazon (click on these areas to find other species found there)
Amazon, Upper Amazon, Napo (click on these areas to find other species found there)
Amazon, Middle Amazon (Solimoes), Japurá, Caquetá (click on these areas to find other species found there)
Amazon, Upper Amazon, Marañón, Pastaza, Bobonaza (click on these areas to find other species found there)
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Jump to next section Husbandry Information
FeedingOmnivorous and a good algae eater, especially when young.
Suggested TankmatesAlmost any medium sized community fish.
Jump to next section Further Information
ReferencesNeotropical Ichthyology, 4(4):401-409, 2006
Registered Keepers(1) smithrc, (2) Freakdaddy (k: 4), who also notes: "thse fish came from fellow forum member Smithrc summer 07", (3) Rory, (4) Bas Pels (k: 5), (5) AleGer (k: 3), (6) prairiefire, (7) GER1023 (k: 3), (8) rayfong (k: 2), (9) Ibn, (10) mikemaes, (11) msjinkzd (k: 70), (12) Narwhal72, (13) Heyguy74, (14) Electrocat (p: 2), (15) Jakesilvester1996.

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Breeding ReportsNone.
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Last Update2016 May 16 10:09 (species record created: 2004 Jul 05 00:00)