Duke S Pozner 1982 Catalogue 5.0 km NE (by rd.) Tilarán, 675 m, Prov. Guanacaste; Costa Rica Coll. 23 July, died 28 July nulliparous 2140 ♀ Heteromys desmarestianus + part skel, + tissue, chromo 278-143-38-18 = 40 g 4.1 km NE (by rd.) Tilarán, 650 m, Prov. Guanacaste, Costa Rica Coll. 23 July, died 28 July parous 2141 ♀ Heteromys desmarestianus + part skel, + tissue, chromo 317-170-37-18 = 56 g Coll. 26 July, died 28 July uteri swollen, no sacs 2142 ♀ Heteromys desmarestianus + part skel, + tissue, chromo 331-189-40-19 = 73 g 2143 ♂ " " + part skel, + tissue, chromo. 268-141-36-18 = 39 g 8 km NNE (by rd.) Cañas, 300 m, Prov. Guanacaste, Costa Rica Coll. 22 July, died 28 July nulliparous 2144 ♀ Liomys salvini + tissue, skel only 166 + 58 + 27-13 = 36 g 5.0 km NE (by rd.) Tilarán, 675 m, Prov Guanacaste; Costa Rica Coll 23 July, died 28 July + = 6 x 4 mm 2145 ♂ Heteromys desmarestianus + tissue, skel only 278-148-36-17 = 48 g 3.9 km SE (by rd) Playas del Coco, 100 m, Prov. Guanacaste; Costa Rica Coll. 24 July, died 28 July + = 12 x 8 mm 2146 ♂ Liomys salvini + tissue, skel only 234 + 117 + 28-13 = 30 g nulliparous 2147 ♀ " " + tissue, skel only 218-112-27-13 = 25 g 1.6 km W (by rd.) Villa Colon, 750 m, Prov. San José, Costa Rica 1 August 1° nulliparous 2148 ♀ Proechimys semispinosus + body skel + tissue, blood, chromo, spleen 294-120-45-21 = 160 g 4.6 km W (by rd.) Limón, 25 m, Prov. Limón, Costa Rica Coll 31 July, died 1 August nulliparous 2149 ♀ Proechimys semispinosus + tissue, blood, chromo, spleen 290-107-44-21 = 192 g parous 2150 ♀ Heteromys desmarestianus + body skel + tissue, blood, chromo, spleen 258-128-36-17 = 70 g + = 19 x 13; SD = 25 mm 2151 ♂ Heteromys " " + body skel + tissue, blood, chromo, spleen 321-172-38-18 = 96 g