Glaridoglanis Norman, 1925

Alfred W. Thomson & Lawrence M. Page, 2006, Genera of the Asian Catfish Families Sisoridae and Erethistidae (Teleostei: Siluriformes)., Zootaxa 1345, pp. 1-96 : 67-68

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Glaridoglanis Norman, 1925


Glaridoglanis Norman, 1925   ZBK

Fig. 20

Glaridoglanis Norman, 1925   ZBK : 574. (Type species: Exostoma andersonii Day, 1870   ZBK , by monotypy). Gender masculine.

Diagnosis: Interrupted post-labial groove; gill openings not extending onto venter; homodont dentition; strong, distally flattened teeth in both jaws; slightly crescent-shaped tooth patch in upper jaw; 10-11 branched pectoral rays.

Glaridoglanis   ZBK is distinguished from Oreoglanis   ZBK , Pseudexostoma   ZBK , Exostoma   ZBK , Myersglanis   ZBK , and Parachiloglanis   ZBK by having an interrupted past-labial groove (Table 5). Glaridoglanis   ZBK is distinguished from Glyptosternon   ZBK , Euchiloglanis   ZBK , and Pareuchiloglanis   ZBK by having strong, distally flattened teeth in both jaws (vs. small pointed teeth). Glaridoglanis   ZBK is further distinguished from Pareuchiloglanis   ZBK and Euchiloglanis   ZBK by having 10-11 branched pectoral rays (vs. 13-16 in Pareuchiloglanis   ZBK and 12-14 in Euchiloglanis   ZBK ). It is further distinguished from Glyptosternon   ZBK by having the gill openings not extending onto the venter.

Description: 6 dorsal rays; 10-11 branched pectoral-fin rays; 6 pelvic-fin rays; 7-8 anal-fin rays. Head depressed; body elongate, flattened ventrally to s. Eyes minute, dorsal. Lips thick, fleshy, papillated. Post-labial groove broadly interrupted medially. Teeth flattened, strong, blunt; tooth patches in upper jaw joined, formeding a slightly crescentshaped band. Maxillary barbel with well-developed membrane, soft base, and striated pad of adhesive skin. Gill openings narrow, not extending below pectoral-fin base. Branchiostegal membranes confluent with isthmus. Coracoid process not externally visible. No thoracic adhesive apparatus. Paired fins plaited to form an adhesive apparatus.

Distribution: Irrawaddy drainage, Myanmar and China (Day, 1870b; Hora & Silas, 1952b; Chu et al., 1999).