P. PEARSON 1949 71 1530 ♀ Corynorhinus rafinesquae intermedius 110 x 51 x 10 x 37 8.9 g. Caught 6:30 a.m. in litter room hanging in contact with 1531. Mother present at 10 p.m. or 3a.m. Banded 46-16726. Mipple medium - large. Rt ov. with embryo 3mm thick but spherical rather than flat as in late-preg. Interi, L.V. with walls slightly thickened. Small med. follicle in both ovaries. Probable joint corpus in left. Banded march 8, 1947. 4 other ♀♀ present at that time. 1531 ♀ Corynorhinus rafinesquae intermedius 108 x 50 x 11 x 37 8.8 g. Caught as 1530. Mipple small-medium. Banded 46-16728. Brump in L. system. 3a.m. B.V. thick-walled. Ovaries with small-med. follicle but no corpus seen under direct scope. Banded march 8, 1947. 4 other ♀♀ present at that time [2 of them were 1529 and 1530] Lucerne, 1330ft., Lake Co., Calif 1532 ♀ Myotis thysanodes thysonodes 103 x 45 x 9 x 21 7.2 g. Caught April 15/7 a.m. in chaser with 11 thysonodes, 4♀ gymnaccensis, and 1♂ gymnaccensis. Killed 8 p.m. Uterus puffy but not markedly preg. No corpus or large folicle seen under direct scope. Aetna Springs, 800 ft., Napa Co., Calif 1533 ♀ Corynorhinus rafinesquae 9.7 g. Chittered in litter with other ♀♀. Caught 11 a.m. April 15. Killed 8:30 p.m. Mipple small. Lower fat. Fetma most large, Brump 8 x 9, embryo 7mm C.R. with both eyes about, front limbs not at all wing-like, "handle" slightly mitten-shaped. Heart of embryo beating after mother killed until ether. 60/sec. at 20°. Ovaries with small-med. follicles, no corpus seen under direct scope. Not observable mammary tissue. 1534 ♀ Corynorhinus rafinesquae 9.8 g. as 1533. Mipple medium. Not much mammary tissue. Brump in L. horn 9 x 12, embryo 9.5mm C.R with digits begining to elongate and ear formed, with tiny tail. No corpus seen. 1535 ♀ Corynorhinus rafinesquae 9.9 g. as 1533 Medium mipple. Trace of mammary tissue. Brump in L. horn 8.5 x 10, placentals anti-recessified. Embryo 7mm C.R. Digits begining to elongate, ear just seperating. No corpus seen in either ovary.