Diagnosis: All external teeth with truncate cutting edges. Anteriormost pair in each jaw extending across full width of mouth. Two vertical small tusk-like processes on internal surface of anteriormost pair of teeth in lower jaw. First dorsal spine originates over posterior half of eye, armed with 2 series of prominent downward-directed barbs on anterior face, much smaller and more numerous than those in postero-Iateral rows. Scales on body with 1 central spinule supported by a transverse ridge, those spinules on caudal peduncle of adult male moderately elongate, curving anteriorly. Pelvic bony structure movably articulated with pelvis (Ref. 35708).