Tables 3 and 4 show the distribution of sexes for two subsections of our sample. The ratio of males to females in the total sample was nearly 1:1. There were differences in ratios between the three general localities: the two northerly sites had fewer females than males, when compared with the Cloudcroft samples. This is true for the samples of adults, but not for the juveniles, where in each instance the females predominated. We cannot absolutely explain these differences in ratios. Possibly the data on adults reflect different patterns of activity among the sexes so that adult females are simply not present in numbers where we looked for them. They could be located underground, in connection with "incubating" duties; if this is true it would account for the fact that so few egg-clusters have been found in logs. Table 3.--Sex Ratios in Aneides hardii, Total Sample =================================================== | Number | Number | Ratio of Locality | of | of | males to | males | females | females ---------------------+--------+---------+---------- Capitan Mountains | 35 | 31 | 100:87 Sierra Blanca | 28 | 21 | 100:75 Sacramentos, 1958 | 23 | 20 | 100:121 Sacramentos, '56-'57 | 34 | 43 | 100:126 +--------+---------+---------- All | 120 | 123 | 1:1 ---------------------+--------+---------+---------- Table 4.--Sex Ratios in Aneides hardii, Adults =================================================== | Number | Number | Ratio of Locality | of | of | males to | males | females | females ---------------------+--------+---------+---------- Capitan Mountains | 35 | 19 | 100:54 Sierra Blanca | 22 | 7 | 100:32 Sacramentos, 1958 | 15 | 14 | 100:93 Sacramentos, '56-'57 | 22 | 16 | 100:73 ---------------------+--------+---------+---------- _Age-ratio_ The data in Table 5 show adult salamanders to outnumber young at each collecting locality. This is probably not an accurate reflection of actual age composition in this species. Yet, we obtained the same general result in all three years of the study. We assume, therefore, that young were located where we could not catch many of them; probably they were underground. Sites of hatching and of the activities of early life would thus occur where we think the bulk of eggs are laid. Table 5.--Age Ratios, Adults-juveniles