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TABLE II
<br />PROPORTIONAL MEASUREMENTS OF
<br />-CHUS PLATOH)_',f'11I_S- I`XPRESSED �S
<br />SANDTHS OF THE STANDARD LENGTH 'To END OF LAST LATERAL PLArEl
<br />Ranges of variation and means include measurements of specimens riot tabulatc'U ht-re
<br />as follows: 1. UNIMZ 944-14. near mouth of Powder River. Prairie Co.. )foul —na; 2, UMMZ 0":w5.
<br />Stout,Adurns Co.. Ohio: 3. !iT_- 211,30. 5. fit- '_'350.0, 1i1- 2167, and 7, Iii 2342. Kansas River. L-twrence , K.r,. :
<br />4. UMNIZ 111542. Raver. just above mouth of Ohio River. Alexrind,r Co, Illinois; 5 -10. UMNIZ
<br />Missouri River. Yankton. South Dakota.
<br />Measurement
<br />1
<br />2
<br />3
<br />4
<br />5
<br />6
<br />7
<br />S
<br />9
<br />10
<br />1
<br />Standard lenrth (mrii.-i
<br />Snout to caudal fork ; nini.)
<br />Snout to :.rrz;-j .......
<br />Snout to peicic insertion .....
<br />Pelvic insertion to ri%i origin
<br />-,�,o
<br />754
<br />774
<br />030
<br />171
<br />rif*
<br />6313
<br />74-1
<br />600
<br />172
<br />524
<br />563
<br />714
<br />-554
<br />172
<br />466
<br />.503
<br />6S2
<br />561
<br />165
<br />3,S6
<br />414
<br />706
<br />555
<br />175
<br />340
<br />307
<br />700
<br />.573
<br />177
<br />2j,3
<br />309
<br />P,90
<br />571
<br />155
<br />207,
<br />225
<br />7'_''3
<br />595
<br />156
<br />136
<br />150
<br />67.9
<br />357
<br />151
<br />56
<br />"IS
<br />619
<br />147,
<br />.54
<br />i.5
<br />16
<br />16
<br />10
<br />4-';n
<br />130-7,4
<br />67, 9-, 7, 4
<br />557
<br />147.-!7,7,
<br />411
<br />An nrigin to call if,:
<br />195
<br />2-2:
<br />2:35
<br />27S
<br />255
<br />203
<br />2`0
<br />251
<br />2,19
<br />2:5
<br />1
<br />Body. greatest aep;:7 ....... .
<br />136
<br />129
<br />144
<br />1 �
<br />119
<br />11-2
<br />104
<br />69
<br />77
<br />Body, greatest width ........ ,
<br />125
<br />115
<br />110
<br />118
<br />111
<br />111
<br />110
<br />122
<br />113
<br />126
<br />Caudal-peduncle length
<br />157
<br />1S,;
<br />195
<br />236
<br />214
<br />2112
<br />242
<br />21'_'
<br />257
<br />212
<br />16
<br />Caudal-peduncle depth .....
<br />17
<br />i 16
<br />12
<br />16
<br />13
<br />1,3
<br />15
<br />15
<br />1 i
<br />i6
<br />Caudiil-redur,3e .......
<br />27
<br />24
<br />-16
<br />-27
<br />26
<br />-27
<br />24
<br />25
<br />25
<br />23
<br />16
<br />_22- 27,
<br />25
<br />lle:ia
<br />295
<br />2q
<br />276
<br />263
<br />2rZ4
<br />_,5y
<br />3,021
<br />303
<br />13 15
<br />'30
<br />54
<br />2343,5')
<br />2 9
<br />Head depth ...... .
<br />79
<br />76
<br />77
<br />74
<br />1-9
<br />7-1
<br />70
<br />: T.
<br />S1
<br />� -5
<br />10
<br />-7- -.5
<br />-,1
<br />Head width. .....
<br />133
<br />133
<br />12S
<br />132
<br />135
<br />147
<br />155
<br />174
<br />1`3
<br />-'-'3
<br />16
<br />*
<br />.2S -23
<br />Interorbital width .............
<br />90
<br />•S-6
<br />S3
<br />14
<br />S9
<br />`7
<br />`6
<br />`3
<br />92
<br />::u
<br />i6
<br />Rostral length
<br />191
<br />M4
<br />202
<br />197
<br />21S
<br />214
<br />2-17
<br />249
<br />'35
<br />Snout length .... ...
<br />155
<br />15S
<br />159
<br />152
<br />165
<br />165
<br />179
<br />171
<br />175
<br />162
<br />54
<br />.......
<br />Orbit lenam . __ _ - - .
<br />13
<br />14
<br />11
<br />9
<br />13
<br />16
<br />15
<br />17
<br />'23
<br />32
<br />116
<br />?- 32
<br />16
<br />anterior-:ic:e-ml width .........
<br />12
<br />10
<br />14
<br />io
<br />11
<br />14
<br />12
<br />JA
<br />17
<br />25
<br />13
<br />10-- 25
<br />13
<br />Posterior - nostril width
<br />26
<br />23
<br />26
<br />27
<br />127
<br />312
<br />36
<br />45
<br />l0
<br />20- 45
<br />28
<br />Mouth width -- -------
<br />S5
<br />S4
<br />77
<br />7S
<br />3
<br />77
<br />7,3
<br />�4
<br />92
<br />IN
<br />54
<br />71-M)
<br />A
<br />.....
<br />Snout to outer barbel ......
<br />95
<br />Ioq
<br />101
<br />104
<br />112
<br />109
<br />122
<br />107
<br />114
<br />115
<br />54
<br />S6 -!31
<br />105
<br />Snout to inner barbel ...
<br />SS
<br />106
<br />95
<br />Q4
<br />102
<br />104
<br />!115
<br />r'7
<br />106
<br />!22
<br />o4
<br />-'2
<br />0.5
<br />Mouth to inner barbel ......
<br />0S
<br />59
<br />62
<br />56
<br />63
<br />71
<br />7 '1
<br />73
<br />Q5
<br />51
<br />Outer-barbel length ......... .
<br />go
<br />6j
<br />S6
<br />Si
<br />S2
<br />79
<br />n2
<br />2
<br />>9
<br />105
<br />54
<br />Inter -bar i-el length ..........
<br />73
<br />54
<br />%
<br />66
<br />q
<br />i:3
<br />5,
<br />•4
<br />^5
<br />72
<br />.54
<br />5-
<br />6 4-
<br />,5
<br />74
<br />Dorsal-fin base
<br />SC
<br />73
<br />64
<br />�2
<br />•3
<br />•9
<br />A9
<br />`
<br />69
<br />�3
<br />Dorsal -fin height ............
<br />S
<br />So
<br />9S
<br />�5
<br />i,;
<br />^•
<br />2
<br />79
<br />62
<br />.5
<br />Anal-fin base
<br />31
<br />42
<br />*39
<br />44
<br />45
<br />49
<br />,2
<br />43
<br />44
<br />15
<br />16
<br />3Q,_ 51
<br />44
<br />.... ......
<br />Anal-fin height . - � � - -
<br />114
<br />SS
<br />91
<br />102
<br />06
<br />iol
<br />S.
<br />.
<br />1
<br />, :,
<br />94
<br />1 0i
<br />i
<br />��- 114
<br />95
<br />(-:kudn!-rn lenvrh ... ------
<br />131
<br />'-5 2
<br />iobe
<br />113
<br />105
<br />115
<br />IIS
<br />109
<br />-::n
<br />156
<br />135
<br />134
<br />147
<br />144
<br />14
<br />lenarii
<br />115
<br />1 - j
<br />92
<br />104
<br />104
<br />10LI
<br />Tenth iaterai piste, height ....
<br />40
<br />43
<br />43
<br />46
<br />3S
<br />41
<br />35
<br />:i)
<br />_,7
<br />JI
<br />54
<br />;6
<br />37
<br />Inter-pace. lateral and ventro-
<br />�,
<br />1-,
<br />lateral plates . ...........
<br />'24
<br />20
<br />19
<br />25
<br />11
<br />20
<br />�,z
<br />14
<br />1
<br />54
<br />50
<br />143
<br />Air-bladder length .... ..... .
<br />...
<br />162
<br />143
<br />IS7
<br />175
<br />142
<br />145
<br />S4
<br />• The mean standard length of the
<br />16 specimens that were
<br />:,.-eas,.)re,,i
<br />for
<br />all
<br />characters
<br />is
<br />.750
<br />178
<br />H
<br />IS
<br />Z
<br />
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