33 P. PEARSON 1952 3873 ♀ Ctenomys peruvian. Edge of census area (but outside) 402g. 290 x 73 x 38 Vagina open, bloody. mipple 4mm., milk. Left ovary with 2 or more cl. of different sizes. Rt ovary w/ cl. (same note bit of bone left from recently partur'd (1sti) 3874 ♂ " "" just outside census area. Testis 8mm. SV large. 537g, 332 x 82 x 39 Big ♂ & another throat slain for ?? 3875 ♀ " "" testis 2 mm. 326 x 78 x 41 600gm. SV large c. 3876 ♂ Lagrid Belly pale yellow-green, back greenish + black mottled. SA 85mm. Both testis 7 mm 3877 ♀ Dicrogryon Uterine horns, no 42½ x 13½ x 5.7 x 3½ emb. 10km. SW Huacullani, 12,900 ft., Dept of Puno, Peru April 29 +SKEL 3878 ♀ Ctenomys leucodon vagina scrotum closed. Mipple 2mm., no milk 268g. 285 x 79 x 36½ Uterus full around parina, ovary with large follicle cl., some at-on w/ piece of uterus. 3879 ♀ " Vagina closed. Mipple 3mm. no milk. 248g. 262 x 68 x 35 = middle 3 mm. mammary 2½" lost used uterus near 3880 ♀ " " Vagina closed. Mipple 3mm., no milk. 258g 264 x 67 x 34 25km. N.W. Cuyaniri, 12,900ft, Dept of Puno, Peru May 2 3881 ♂ Hezperomys duilla testis 6mm. SV very large. 116 x 39 x 16. 13 gm. 3882 ♂ Akodon boliviensis testis 6mm. 150 x 62 x 20 x 15 16 gm 3883 ♂ Akodon boliviensis uterus 5 mm. Tres Ornes 147 x 62 x 20 x 13 16 gm 18km. N. Pacaestambo, 14,900ft; Dept of Cuzco, Peru. May 4 3884 ♀ Akodon boliviensis 126 x 60 x 20 x 14. Uterus. 13 gm 3885 ♀ Akodon boliviensis 6 embry., lactating. 172 x 76 x 20 x 14 26 gm. 3886 ♀ Akodon boliviensis embryos. 163 x 71 x 19 x 14 26g. 3887 Frog. undergrowth on dry hillside May 6 3877 ♀ Long-tailed mouse? Thomasonys gracil. On edge of cloudforest. Uterus. 109gm, 195 x 114 x 23 x 2½