Smith 1934. Contributions to the ichthyology of Siam. IX. Siamese Clariid catfishes. X. Note on the mountain catfish Oreoglanis. XI. Status of the catfishes Mystus tengara and Mystus vittatus in the Siamese fauna. XII. The catfish Pseudobagrus nudiceps as a Siamese Journal of the Siam Society, 9(3) 1934: pp. 287-325