Journal of experimental zoology . Fig. 23 Anasa tristis; frequency distribution of head-lengths of 384 sper-matozoa from left testis of same individual as figure 22. Valuein/x 26 5 Frequency 1 3 5 13 35 22 47 50 s8 44 36 20 19 18 5 4 3 1 SIZE DIMORPHISM IN SPERMATOZOA 215. 24 Anasa tristis; frequeue} distribution of head-lengths of 394 sper-matozoa from right testis. ValueiriM

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Journal of experimental zoology . Fig. 23 Anasa tristis; frequency distribution of head-lengths of 384 sper-matozoa from left testis of same individual as figure 22. Valuein/x 26 5 Frequency 1 3 5 13 35 22 47 50 s8 44 36 20 19 18 5 4 3 1 SIZE DIMORPHISM IN SPERMATOZOA 215. 24 Anasa tristis; frequeue} distribution of head-lengths of 394 sper-matozoa from right testis. ValueiriM Frequency 2 2 2 7 8 20 32 41 56 41 24 29 28 33 20 22 8 5 2 2 0

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1904