Figure 46.1 - 46.7. 46.1. Rhacochilus vacca (Pile Perch); large size; scale bar = 1.0 mm. 46.2. Rhacochilus vacca (Pile Perch); medium size; scale bar = 1.0 mm. 46.3. Rhacochilus vacca (Pile Perch); small size; scale bar = 1.0 mm. 46.4. Rhacochilus vacca (Pile Perch); scale bar = 1.0 mm. 46.5. Rhacochilus vacca (Pile Perch); scale bar = 1.0 mm. 46.6. Rhacochilus vacca (Pile Perch); scale bar = 1.0 mm. 46.7. Rhacochilus vacca (Pile Perch); sketch of living specimen; length = 44 cm. (To see enlargement, click on image.)