Papers on Mammalogy
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LI B R.ARY OF THL UNIVERSITY Of ILL1 NOIS The person charging this material is re- sponsible for its return to the library from which it was withdrawn on or before the Latest Date stamped below. Theft, mutilation, and underlining of books are reasons for disciplinary action and may result in dismissal from the University. UNIVERSITY OF ILLINOIS LIBRARY AT URBANA-CHAMPAIGN L161 O-1096 I 27 Papers on Mammalogy Published in honor of WILFRED HUDSON OSGOOD ZOOLOGICAL SERIES FIELD MUSEUM OF NATURAL HISTORY VOLUME 27 DECEMBER 8, 1941 PUBLICATION 511 ' i OF Tfi OF iuiais Field Museum of Natural History Zoology, Vol. 27, Plate 1 WILFRED HUDSON OSGOOD PAPERS ON MAMMALOGY Published in honor of WILFRED HUDSON OSGOOD PRINTED IN THE UNITED STATES OF AMERICA BY FIELD MUSEUM PRESS Papers on Mammalogy Published in honor of WILFRED HUDSON OSGOOD THE UbKAKY OF THE DEC 30 1941 WERSITV OF JLL/NOJS ZOOLOGICAL SERIES FIELD MUSEUM OF NATURAL HISTORY VOLUME 27 DECEMBER 8, 1941 PUBLICATION 611 *** *J. '*-. CONTENTS PAGE LIST OP ILLUSTRATIONS 7 THE WORK OF WILFRED HUDSON OSGOOD. By Stanley Field 11 PERSONAL APPRECIATION. By Clifford C. Gregg 15 PYGMY SPERM WHALE IN THE ATLANTIC. By Glover M. Allen 17 MAMMALS COLLECTED BY THE VERNAY-CUTTING BURMA EXPEDITION. By H. E. Anthony 37 CRANIAL AND DENTAL CHARACTERS OF SOME SOUTH AMERICAN CERVIDAE. By Angel Cabrera 125 THE ARTERIES OF THE FOREARM IN CARNIVORES. By D. Dwight Davis. 137 A PLEISTOCENE OTTER FROM IOWA. By Edward A. Goldman 229 REVISION OF THE RODENT GENUS MICRODIPODOPS. By E. Raymond Hall . 233 THE FEMORAL TROCHANTERS. By A. Brazier Howell 279 ON THE IDENTITY OF THE PORPOISE SAGMATIAS AMBLODON. By Remington Kellogg 293 INCISOR TIPS OF YOUNG RODENTS. By Barbara Lawrence 313 THE RACES OF THE OCELOT AND THE MARGAY. By R. I. Pocock 319 DESCRIPTIONS AND RECORDS OF NEOTROPICAL BATS. By Colin Campbell Sanborn 371 INDEX . 389 LIST OF ILLUSTRATIONS PLATES 1. Wilfred Hudson Osgood. 2. Gangfang, a trading post and the base camp of the expedition. Ngawchang River with Gangfang in background. 3. Salween Divide viewed from ridge above Imaw Bum camp. Near Chimeli Pass. 4. Imaw Bum from trail. Looking west from trail, Gangfang to Hpawte. 5. Looking east from Hpimaw Fort toward Salween Divide. Native deadfall set for large rat, near Gangfang. 6. Delphinus obscurus. Lagenorhynchus fitzroyi. Delphinus fitzroyi. 7. Delphinus breviceps. Delphinus obscurus var. Phocaena posidonia. Delphinus superciliosus. 8. Phocaena australis. Lagenorhynchus australis. 9-12. Lagenorhynchus australis. TEXT FIGURES PAGE 1. Fetus of Kogia breviceps 27 2. Tracing of outline of dorsal fin of Kogia breviceps 28 3. Tracing of outline of pectoral limb of Kogia breviceps 29 4. Sternum of Kogia breviceps 30 5. Map showing principal collecting sites of Vernay-Cutting Burma Expedition 41 6. Side view of anterior part of rostrum in Hippocamelus bisulcus, Odocoileus gymnotis, Blastocerus dichotomus, and Ozotoceros bezoarticus 128 7. Orbital region in Hippocamelus bisulcus, Odocoileus gymnotis, Blastocerus dichotomus, and Ozotoceros bezoarticus 130 8. Side view of occiput in Hippocamelus bisulcus, Odocoileus gymnotis, Blasto- cerus dichotomus, and Ozotoceros bezoarticus 131 9. Bullar region in Hippocamelus bisulcus, Odocoileus gymnotis, Blastocerus dichotomus, and Ozotoceros bezoarticus 132 10. Incisiform teeth in Hippocamelus bisulcus, Odocoileus gymnotis, Blasto- cerus dichotomus, and Ozotoceros bezoarticus 133 11. Types of arches found in the Carnivora 150 12. Vessel pattern in Echinosorex albus; volar view 152 13. Vessel pattern in Echinosorex albus; dorsal view 153 7 8 LIST OF ILLUSTRATIONS PAGE 14. Vessel pattern in Cants familiaris; volar view 156 15. Vessel pattern in Canis familiaris; dorsal view 157 16. Vessel pattern in Bassariscus astutus; volar view 162 17. Vessel pattern in Bassariscus astutus; dorsal view 163 18. Vessel pattern in Procyon lotor; volar view 166 19. Vessel pattern in Procyon lotor; dorsal view 167 20. Vessel pattern in Potos flavus; volar view 170 21. Vessel pattern in Potos flavus; dorsal view 171 22. Vessel pattern in Ailurus fulgens; volar view 172 23. Vessel pattern in Ailurus fulgens; dorsal view 173 24. Vessel pattern in Ailuropoda melanoleuca; volar view 176 25. Vessel pattern in Ailuropoda melanoleuca; dorsal view 177 26. Vessel pattern in Euarctos americanus; volar view 179 27. Vessel pattern in Euarctos americanus; dorsal view 180 28. Vessel pattern in Mustela putorius; volar view 184 29. Vessel pattern in Mustela putorius; dorsal view 185 30. Vessel pattern in Tayra barbara; volar view 190 31. Vessel pattern in Tayra barbara; dorsal view 191 32. Vessel pattern in Taxidea taxus; volar view 192 33. Vessel pattern in Taxidea taxus; dorsal view 193 34. Vessel pattern in Paradoxurus hermaphroditus; volar view 198 35. Vessel pattern in Paradoxurus hermaphroditus; dorsal view 199 36. Vessel pattern of Herpestes ichneumon; volar view 204 37. Vessel pattern of Herpestes ichneumon; dorsal view 205 38. Vessel pattern of Hyaena striata; volar view 208 39. Vessel pattern of Hyaena striata; dorsal view 209 40. Vessel pattern of Felis domestica; volar view 212 41. Vessel pattern of Felis domestica; dorsal view 213 42. Vessel pattern of Panthera leo; volar view 214 43. Vessel pattern of Panthera leo; dorsal view 215 44. Diagram of chief vessels of forearm in Carnivora 219 45. Lutra iowa sp. nov 230 46. Skulls of Microdipodops megacephalus megacephalus and M. pallidus pallidus 243 47. Teeth, lower jaw, and left side of part of skull of Microdipodops mega- cephalus megacephalus; plantar view of right hind foot of Perognathus parvus columbianus and Microdipodops pallidus pallidus; left side of cranium and lower jaw of M. pallidus pattidus 245 48. Map showing geographic range of subspecies of Microdipodops mega- cephalus 247 49. Dorsal and ventral views of cranium of Microdipodops megacephalus sabulonis and Mus musculus subsp.? 261 50. Skeleton of Microdipodops megacephalus sabulonis 262 51. Typical habitat of Microdipodops pallidus 267 LIST OF ILLUSTRATIONS 9 PAGE 52. Map showing geographic range of subspecies of Microdipodops pallidus . 268 53. Live adult of Microdipodops pallidus pallidus 270 54. The proximal right femur of man, Iguana, and Gallus 283 55. The proximal right femur of man and Iguana 287 56. Incisors of Aethomys kaiseri hindei 314 57. Incisors of Neotoma fuscipes annectens 315 THE WORK OF WILFRED HUDSON OSGOOD The Trustees and Scientific Staff of Field Museum of Natural History have felt that a volume composed of papers on mammalogical topics and dedicated to Wilfred Hudson Osgood would form a testi- monial to him of their appreciation of his eminence as a museum zoologist. Papers have accordingly been invited from some of his colleagues, more particularly those of his own generation, and from the Field Museum Staff. Such a testimonial volume is the more appropriate in Field Museum's Zoological Series since this series for twenty years has borne the stamp of his editorship and thereby of his personality. This stamp, and the high level of editorial con- scientiousness it denotes, is perhaps best known to the younger members of Dr. Osgood's staff. Their papers have gone through his hands, and the resulting improvements in the form of their scien- tific contributions reflect fundamental improvements in their very thinking. It is not difficult to trace some of the environmental factors which made Wilfred H. Osgood a great museum zoologist. He grew up in a generation when private collections of birds and mam- mals still provided a great stimulus to outdoor natural history, and began his career with collecting and field observation. His connec- tion with the "Biological Survey" began in the year 1897 while he was still an undergraduate at Stanford University. The idea of a true biological survey of the North American continent was a grand one. Building on the necessarily more scattered results of the early biological explorations of the west under the direction of Spencer Fullerton Baird, it was proposed under C. Hart Merriam's leadership to define the distributions of plants and animals in order to relate them to the underlying climatic and physiographic condi- tions. Thus there was current an understanding of some of the broad biological implications of taxonomic work, and there could scarcely have been a more satisfactory background for a career as a systematic zoologist. The development of the "closet naturalist" type is one of the pitfalls of systematic zoology which has been largely avoided in America. Dr. Osgood's career, with its constant alternation of field observation and collecting on one hand and critical study of the resulting collections on the other, exemplifies the almost ideal correlation of studies in nature with studies in museum and labora- tory toward which we strive. He began with collecting expeditions 11 12 OSGOOD TESTIMONIAL VOLUME in the Pacific northwest to Alaska in 1899, to the Queen Charlotte Islands in 1900, to the base of the Alaska Peninsula again in 1902, and again to the interior of Alaska in 1903 and 1904. Reports on these several expeditions appeared in the "North American Fauna." In the intervals between periods of field work he carried on studies of various groups of North American rodents, of which the most noteworthy were embodied in a comprehensive report on the white- footed mice (PeromySOILS), published in 1909. This group of small rodents, ubiquitous in North America, required the study of an extraordinary wealth of material; it is gratifying to the systematic zoologist to find that it has supplied the basis for broadly ramifying studies of ecology and genetics that are still in progress. The early part of his career, with its emphasis on North America and Alaska, came to an appropriate end with his studies and the published report on the Alaska fur seal (with other members of the Fur Seal Commission), in 1915. Within his career in Field Museum, beginning in 1909, Dr.