920 



U. S. NATIONAL MUSEUM BULLETIN 205 



Microsciurus — Continued 



venustulus, 267 



vivatus, 267 

 Microsorex, alnorum, 34 



eximius, 34 



hoyi, 33 



intervectus, 33 



thompsoni, 33 



washingtoni, 34 



winnemana, 34 

 microspilotus, Spermophilus, 



201 

 Microti, 567 

 Microtinae, 559 

 microtis, Micronycteris, 62 



Putorius, 730 

 Microtus, 581 



abbreviatus, 606 



abditus, 599 



acadicus, 584 



admiraltiae, 587 



adocetus, 582 



aequivocatus, 595 



aestuarinus, 593 



alcorni, 587 



alticola, 598 



amakensis, 604 



amosus, 591 



andersoni, 607 



angusticeps, 599 



angustus, 600 



aphorodemus, 585 



arcticus, 586 



arizonensis, 592 



artemisiae, 613 



arvicoloides, 582 



auricularis, 610 



aztecus, 588 



baileyi, 598 



bairdi, 581 



bernardinus, 598 



breweri, 588 



californicus, 592 



canescens, 590 



canicaudus, 590 



cantator, 607 



cantwelli, 581 



carolinensis, 603 



caryi, 592 



cautus, 600 



chrotorrhinus, 603 



constrictus, 593 



coronarius, 600 



cummingi, 597 



drummondii, 586 



dutcheri, 589 



elymocetes, 605 



endoecus, 606 



enixus, 585 



Microtus — Continued 

 eximius, 593 

 fisheri, 606 

 fontigenus, 585 

 fucosus, 591 

 fulviventer, 602 

 fundatus, 601 

 funebris, 588 

 fusus, 592 

 gilmorei, 606 

 gregalis, 604 

 grinnelli, 595 

 guadalupensis, 602 

 guatemalensis, 581 

 halli, 600 

 halophilus, 593 

 haydenii, 609 

 hualpaiensis, 602 

 huperuthrus, 595 

 hyperythrus, 595 

 innuitus, 604 

 insperatus, 585 

 insularis, 588 

 intermedius, 613 

 kadiacensis, 605 

 kernensis, 594 

 kincaidi, 588 

 labradorius, 585 

 laingi, 596 

 latus, 598 

 leucophaeus, 598 

 littoralis, 600 

 longicaudus, 597 

 ludovicianus, 609 

 macfarlani, 606 

 macropus, 583 

 macrurus, 599 

 madrensis, 601 

 mariposae, 594 

 mexicanus, 601 

 micropus, 591 

 minor, 609 

 miurus, 607 

 modestus, 587 

 mogollonensis, 602 

 mohavensis, 594 

 montanus, 589 

 mordax, 597 

 morosus, 581 

 muriei, 607 

 nanus, 590 

 navaho, 602 

 neglectus, 595 

 nemoralis, 611 

 nesophilus, 588 

 nevadensis, 591 

 nexus, 592 

 nigrans, 584 

 ochrogaster, 608 



Microtus — Continued 

 oeconomus, 604 

 ohionensis, 608 

 operarius, 603 

 oreas, 607 

 oregoni, 581 

 paludicola, 593 

 paneaki, 607 

 pennsylvanicus, 583 

 perplexabilis, 595 

 phaeus, 601 

 popofensis, 605 

 pratincolus, 590 

 principalis, 583 

 provectus, 589 

 pugeti, 596 

 pumilus, 578 

 punukensis, 604 

 ratticeps, 604 

 ravus, 603 

 richardsoni, 58? 

 rivularis, 591 

 rubidus, 586 

 salvus, 601 

 sanctidiegi, 595 

 scalopsoides, 610 

 scirpensis, 594 

 serpens, 582 

 shattucki, 584 

 sierrae, 599 

 sitkensis, 605 

 slowzowi, 606 

 stephensi, 595 

 stonei, 586 

 subsimus, 601 

 tananaensis, 587 

 taylori, 609 

 terraenovae, 584 

 terrestris, 581 

 tetramerus, 596 

 townsendii, 596 

 umbrosus, 580 

 unalascensis, 604 

 undosus, 591 

 vallicola, 594 

 vellerosus, 600 

 wahema, 586 

 xanthognathus, 602 

 yakutatensis, 605 

 yosemite, 589 



micrura, Cryptotis, 41 



micrurus, Sorex, 41 



micrus, Nesophontes, 53 



Mictomys, 563 



innuitus, 563, 565 



Midas bicolor, 127 

 geoffroyi, 128 

 oedipus, 127 



middendorffi, Ursus, 710 



