A contraction of the Greek hypo (meaning less than) and ancistrus, an allusion to
the reduced number of teeth (particularly in the lower jaw) found in this genus.
Often referred to by the trade name of ''Peckoltia angelicus'' which is not a valid scientific label. This is a small, attractively patterned species. The white spots adorning this species are medium sized and well spaced out. L004 is the juvenile phase of L005 (which has slightly smaller spots - still well spaced out) and also L028 and L073. Even if it is not a big Loricariid, it has a rather massive appearance.
Male in breeding condition have odontodes (~2mm) on the plate on the body. Odontodes on pectoral are bigger on male, dominant males have long interopercular odontodes which is not the case with submissive male, in which interopercular odontodes are barely bigger than those on the female. Females are more rounder in the ventral region when viewed from above.
L004 & L005 : Brazil: Rio Tocantins at Cametá
L028 : Brazil : Guamá by Ourem
L073 : Brazil : Portel at the Rio Do Pará, Pará. Amazon, Lower Amazon, Tocantins(click on these areas to find other species found there)
A lot of caves made of slate plates and bamboo. Caves have to be just a bit bigger than the fish so he can squeeze himself in it in case of danger Driftwood, fine sand, not too bright light. Plants can be kept with them as they don't touch them!
Females lay about 45 eggs in a cave guarded by the male. The eggs hatch after 8 days. The young absorb the yolk sac in about 18 days. After this time the young usually stay in the cave and venture a bit at night, they are not kicked out by the male but he does not provide any protection as the male goes out to search for food and let the young unguard, they will benefit from the protection when he comes back. The male does not disallow the young to go in or out as he does when they are still absorbing the yolk sac.
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Cat-eLog 
Loricariidae 
/1.jpg "Hypancistrus sp. (L004)(1) - Click to enlarge")
/2.jpg "Hypancistrus sp. (L004)(2) - Click to enlarge")
/3.jpg "Hypancistrus sp. (L004)(3) Adult L028 - Click to enlarge")
/4.jpg "Hypancistrus sp. (L004)(4) Adult L028 - Click to enlarge")
/5.jpg "Hypancistrus sp. (L004)(5) - Click to enlarge")
/6.jpg "Hypancistrus sp. (L004)(6) - Click to enlarge")
/7.jpg "Hypancistrus sp. (L004)(7) - Click to enlarge")
/8.jpg "Hypancistrus sp. (L004)(8) - Click to enlarge")
/9.jpg "Hypancistrus sp. (L004)(9) Female - Click to enlarge")
/10.jpg "Hypancistrus sp. (L004)(10) - Click to enlarge")
/11.jpg "Hypancistrus sp. (L004)(11) - Click to enlarge")
/12.jpg "Hypancistrus sp. (L004)(12) Lateral view - Click to enlarge")
/13.jpg "Hypancistrus sp. (L004)(13) Adult (L073) - Click to enlarge")
/14.jpg "Hypancistrus sp. (L004)(14) - Click to enlarge")
/15.jpg "Hypancistrus sp. (L004)(15) Close-up of mouth (L028) - Click to enlarge")
/16.jpg "Hypancistrus sp. (L004)(16) Close-up of mouth (L028) - Click to enlarge")
/17.jpg "Hypancistrus sp. (L004)(17) Male")
/18.jpg "Hypancistrus sp. (L004)(18) Male (:L028) - Click to enlarge")
/19.jpg "Hypancistrus sp. (L004)(19) - Click to enlarge")
/20.jpg "Hypancistrus sp. (L004)(20) Adult (L028) - Click to enlarge")
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