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Steven Grant (3) Lance R. Peck (1)

Description: Dorsal spines (total): 1; Dorsal soft rays (total): 6-7; Anal spines: 1; Anal soft rays: 4; Vertebrae: 33 - 34. Distinguished from all other species of Rhadinoloricaria by having more teeth (4-8 premaxillary and 8-11 mandibular teeth); more coalescing plates (17-20); maxillary barbel longer (68-109 % HL), reaching middle or proximal third of pectoral fin; barbels of lower lip more developed (16-27% HL); interorbital width greater (16-21% HL); and first ray of dorsal, pectoral and pelvic fins produced beyond branched fin rays. Furthermore, it is distinguished from R. rhami by these osteological features: tip of first dorsal-fin pterygiophore passes between paired neural spines of 8th centrum and contacts posterior border of transverse process of 7th centrum; pectoral fin reaches anterior half of pelvic fin; pelvic skeleton with ischiac process of basipterygia elongated, longer than in R. rhami; and last pterygiophore of anal fin bears a bifid posterior process, ending at the middle of haemal spine of 18th centrum. Habitat: Occurs in the main river and major tributaries, always over sandy beaches. Reproduction: The holotype (male, 11.59 cm SL) carried 53 fertilized eggs (3.2-3.4 mm diameter) on its lips and another specimen was carrying 31 unfertilized eggs. Aquarium Care: Likes to bury itself in a deep sandy bottom substrate with only the eyes being visible so you would need to provide this for aquarium maintenance. Diet: In its natural habitat the stomach contents included larvae of aquatic insects, small seeds and debris. Feed with tablet foods, frozen mosquito larvae, daphnia etc. Remarks: This species is listed as Least Concern (IUCN Red List) because it is widely distributed, is locally abundant, is present in protected areas and because there are no major widespread threats currently affecting its population in the Peru population.

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Crossoloricaria bahuaja

Loricariidae

South America: Madre de Dios basin in Peru; Rio Grande and Rio Manuripe in Pando, Bolivia. Type Locality: Tambopata River (12°47'05"S, 69°18'55"W), Tambopata Province, Madre de Dios Department, Peru.

16.5cm (6½inch)

25-29°c (77-85°f)

6.5-7.5.

Chang, F. and E. Castro, 1999. Crossoloricaria bahuaja, a new loricariid fish from Madre de Dios, southeastern Peru. Ichthyol. Explor. Freshwat. 10(1):81-88.
Chuctaya, J. 2016. Crossoloricaria bahuaja. The IUCN Red List of Threatened Species 2016.
Froese, R. and D. Pauly. Editors. 2019. FishBase. World Wide Web electronic publication. www.fishbase.org, ( 12/2019 ).