. The American journal of anatomy. A. s. m Figs. VII and VIII. Two abnormalities of the postrenal division of the post-cava of JDldeJpIn/s ?nuivxiipiidix. Ventral views. , A. iliaca communis; , A. iliaca externa; , A. iliaca interna; Ao.,Aorta; , A. spermatica interna anterior; , A. spermatica interna poster-ior; , A. sacralis media; pc, postcava; , V. iliaca communis; , externa; , V. iliaca interna ; , V. iliolumbalis , , V. renalis ; ,V. sacralis media; V. , V. spermatica interna. In view o
. The American journal of anatomy. A. s. m Figs. VII and VIII. Two abnormalities of the postrenal division of the post-cava of JDldeJpIn/s ?nuivxiipiidix. Ventral views. , A. iliaca communis; , A. iliaca externa; , A. iliaca interna; Ao.,Aorta; , A. spermatica interna anterior; , A. spermatica interna poster-ior; , A. sacralis media; pc, postcava; , V. iliaca communis; , externa; , V. iliaca interna ; , V. iliolumbalis , , V. renalis ; ,V. sacralis media; V. , V. spermatica interna. In view of the circumstance that variations in the mode of origin ofthe postcava are not exceptional but are the rule in Didelphys, and thatthese two particular cases differ fundamentally from the usual Types ofvariation, they must be regarded as the only genuine abnormalities thatwere met with among the one hundred and one opossums examined. An explanation of the development of these two abnormalities willbe deferred until the second part of this paper. It appe
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectanatomy, bookyear1901
