Snout length/head length ratio 55.5–65.3%; head-eye
length/snout length 53.9–72.1% in specimens
greater than 60 mm SL; dark spots on fins relatively
small, forming 6–9 irregular bands on the caudal
fin and 7–9 spots along the pectoral-fin spine.
Typical Ancistrus shape with both sexes sporting
bristles to the head area with the male having the
larger and more impressive tentacles. Aquarium
Care: Quite an easy species to keep as long
as there is adequate aeration in the aquarium and
giving them a choice of pipes, stones or rockwork.
Reproduction: The female lays her
eggs in caves or crevices... that the male has chosen
and cleaned.... as a cluster. The male usually then
guards the eggs after ejecting the female. The fry
then cling to the sides of the cave and when they
use up their yolk sac, which is around the four to
seven day period, they will be ready to feed on infusuria,
vegetable matter, brine shrimp naupli or micro worms.
In a community tank a few will survive if enough hiding
places are afforded to them. Etymology:
The specific name martini: In honour of geologist
Bethea Martin, Lago Petroleum Corporation, who aided
Schultz in the collection of fishes in Venezuela.
Ancistrus triradiatus martini
Zulia River basin in the Catatumbo River drainage,
Lake Maracaibo drainage, Venezuela. Type
locality: Río Táchira, 7 km.
north of San Antonio, Catatumbo system; Venezuela.