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Andreas Tanke (2)

Description: Body and head broad and flat, without keels or elevations. Triangular head with tip of snout slightly prominent and naked. Head plates smooth, without bristles. Large eyes; orbit almost quadrangular; supraoccipital flat. Subpreopercle large, triangular, and partly covered by odontodes. Large mouth, well developed, thick upper lip. Rictal barbels extremely reduced and attached to the lower lip by well developed membrane, not papillated. Incomplete abdominal covering. Lateral plates 29-30, carinate, arranged in 2 confluent series. Colouration: Head light brown blotches over a dark brown surface. Five broad transversal dark bars covering body and caudal peduncle; last bar very dark, surrounding caudal fin insertion and covering part of supracaudal plates. Aquarium Care: Not the easiest genera to keep as they will need clean, oxygen rich water and a strong current. Does not do well in imports due to its difficulty in traveling containers. Diet: Dry foods, algae wafers, Spirulina and normal tablet foods. Frozen foods, Artemia nauplii, glass worms and Daphnia. Sexual Differences: Males tend to have odontodes (hair like structures) on the first ray of the pectoral fins and the head in males is broader. Etymology: The genus name Harttia: –ia, belonging to: Charles Frederick Hartt (1840-1878), geologist, paleontologist and naturalist, who collect many specimens that Steindachner studied during the Thayer Expedition (1865-1866) to Brazil. The specific name of uatumensis: –ensis, suffix denoting place: Uatumã River basin, Brazil, type locality. Remarks: The successive construction of dams over the last 25 years (Balbina, Paranapanema and Jatapú) has changed the environment from lotic to lentic, resulting in a continued decline in habitat quality. Thus, H. uatumensis was categorised as Near Threatened (NT), as it approaches the Vulnerable (VU) category according to the B1b(iii) criteria (2022).

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Loricariidae

South America: Uatumã River basin, Amazonas - Guiana Shield, northern Brazil. Type locality: Brazil: Amazonas: Rio Uatumã, at Santa Luzia (59º28'36"W, 1º50'13"S).

12.0cm. (4¾ins)

25-30°c (75-87°f.)

6.0-7.0.