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<br />r <br /> <br /> <br /> <br /> <br /> <br /> <br />Fig. 62. Frontoparietal fontanelle of Catostomus <br />discobolus. Top - juvenile, 27.1 mm SL, 32.5 mm TL. <br />Bottom - juvenile, 32.4 mm SL, 38.5 mm TL. <br /> <br />Table 20. Dimensions of frontoparietal fontanelle for <br />Catostomus discobolus larvae> 16 mm SL, early juveniles, <br />and yearling. <br /> <br /> Specimens Max. width Max. length Width as % <br /> mmSL n (mm) (mm) ofleng1h <br /> 17-19 4 0.6-0.9 1.4-1.8 41-50 <br /> 20-21 2 0.5-0.9 1.7 -1.7 29-35 <br />Fig. 61. Inlerneurals of Catostomus discobolus. Top- 22- 25 3 0.5-0.8 1.3-2.8 29-38 <br />postflexion mesolarva, 15.3 mm SL, 17.0 mm TL. 26- 34 2 0.6-0.7 2.0-2.2 27-35 <br />Middle - metalarva, 21.8 mm SL, 25.5 mm TL. Bottom 35-46 1 0.7 2.7 26 <br />- juvenile, 43.0 mm SL, 52.5 mm TL. 76-81 I 0.7 3.7 19 <br /> <br />59 <br />