Journal of experimental zoology . 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. 33 48 34 56 Fig. 25 Anasa tristis; frequencj* distribution of head-lengths of 322 sper-matozoa from left testis of same individual as the one in figure 24. Valueinpi Frequency 1 1 3 5 7 10 ,11 24 45 !)0 40


Journal of experimental zoology . 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. 33 48 34 56 Fig. 25 Anasa tristis; frequencj* distribution of head-lengths of 322 sper-matozoa from left testis of same individual as the one in figure 24. Valueinpi Frequency 1 1 3 5 7 10 ,11 24 45 !)0 40 41 37 21 13 12 5 4 2 216 CHARLES ZELENY AND E. C. FAUST


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1904