Pal. Soc. India Monogr. No. 3: 1-48. 6 figs. 6 pls. Apr. 7, 1975.

–Reports sir. fossils from three separate horizons in Kutch, western India: Protosiren fraasi from the Middle Eocene (27-29, pl. 6), Halitherium from the Late Oligocene (35-37, pl. 6), and Indosiren koenigswaldi n.sp. from the Early Miocene (37-40, pl. 6). The material referred to P. fraasi consisted of a fragmentary pelvis, later referred by Gingerich et al. (1993) to the cetacean Indocetus ramani.