The variations and ecological distribution of the snails of the genus Io . 1000 1 \ Plate 16 Height of Spinesholsron river system goo 850600 1 4— i 1 -4 \\ Gf^ipi? 700 ?SBO6005505U4,iO \-l_ 1 Oroup 17. ^,^ 1 Gr^fs. 1 j 1—\— 1 I 1 y 400350300230200^150 en feioo mOO 3 /k- 1 c\ \ ^r ^ A--^ 14 \i / . V ; / \ V ~i ^ \ \ \\ tx. 1 r^f\ _s|r^ \ . A / \ i / \ 1) ~^ 0 3 a« 1,5 IS Z6 Sj 18 45 S3 5i6 1 Heightof Spines IN/)//!/. ,.„-».-» 1. EXPLANATION TO PLATES 18-2L (Distance between spines.) Flattings of quantitative data to show the average distance between the spines, by groups,thronghont the
The variations and ecological distribution of the snails of the genus Io . 1000 1 \ Plate 16 Height of Spinesholsron river system goo 850600 1 4— i 1 -4 \\ Gf^ipi? 700 ?SBO6005505U4,iO \-l_ 1 Oroup 17. ^,^ 1 Gr^fs. 1 j 1—\— 1 I 1 y 400350300230200^150 en feioo mOO 3 /k- 1 c\ \ ^r ^ A--^ 14 \i / . V ; / \ V ~i ^ \ \ \\ tx. 1 r^f\ _s|r^ \ . A / \ i / \ 1) ~^ 0 3 a« 1,5 IS Z6 Sj 18 45 S3 5i6 1 Heightof Spines IN/)//!/. ,.„-».-» 1. EXPLANATION TO PLATES 18-2L (Distance between spines.) Flattings of quantitative data to show the average distance between the spines, by groups,thronghont the Temiessee o CM COU Q_ to Z u Ui (3 u on -> |f^ O !>. ^ ^ §^ §^ §^ §^ §^ §. vs > <^ ^ y, cs o oo CO Ul Q. (O Q. CO z O UJ < ^ LiJ Cj uo z <3 ^ .-. 5 ,., 3 t 15 55 &5 K Distance Between Spines inmm. sFr^jc-n.,, 5 I 950900 ago800750700550SCO550500450400350300250200 diso Iin^lOO c Di ATc 9n \\ AVERAGE Distance Between Spinesholston river system i ! Gr GroupGroup ouP9l2-i8 1 ! /2 . 1 Grou^ /S —.. 1
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