sentences:  The two dorsal fins are set far back on the body, the first originating behind the pelvic fin midbases and the second originating behind the anal fin midbase.The pectoral fins are moderately large; the dorsal, pelvic, and anal fins are of similar size.The broad caudal fin comprises a fifth of the total length; the upper lobe has a deep ventral notch near the tip and the lower lobe is virtually absent.