34 Mamm , 
II. MAMMALIA. 
7. Geomyidal. 
Geomys scalops , n. sp., Thomas, Ann. Nat. Hist. (6) xiii, p. 437, Tehuan- 
tepec. 
Geomys bursarius , note on ; Osborn, Science, xxiii, p. 102. 
Dipodomys simiolus , p. 410, similis , p. 411, P. Ac. Philad. 1893 ; parvus , 
Amer. Natural, xxviii, p. 69, n. spp., Rhoads, California. 
Dipodomys elator , p. 109, ornatus, p. 110, perotensis , p. Ill, n. spp., 
Merriam, P. Soc. Washington, ix, N. America. 
Dipodomys merriami nevadensis, p. Ill, nitratus, nitratoides , p. 112, exilis, 
atrouasus , p. 113, n. subsp., Merriam, t . c., sfo'cJ. 
Perodipus streatori , p. 113, panamintinus, p. 114, orcfo* columbianus, p. 115, 
n. spp. & subsp., Merriam, t. c., 2626?. 
Perognathus latirostris , n. sp., Rhoads, Amer. Natural, xxyiii, p. 185, (?) 
Nebrasca or Wyoming. 
Perognathus baileyi , columbianus, nevadensis , nelsoni , Stephens* i, ji. spp., 
Merriam, P. Ac. Philad, 1894, pp. 262-268, N. America. 
Perognathus longimembris panamintinus , Jlavus inexicanus , intermedins 
canescens, n. subspp., Merriam, J. c. pp. 265-267, N. America. 
Perognathus copei, p. 404, Texas, alticolus , p. 412, California, n. spp., 
Rhoads, op. c«7. 1893. Notes on several other species also given. 
Perognathus pricci and conditi , Allen, Bull. Amor. Mus. vi, p. 318, 
Arizona. 
Perognathus bryanti , p. 458, tnargaritce , p. 459, spinatus peninsulas, p. 460, 
arenarius, p. 461, n. spp. & subsp., Merriam, Pap. Calif. A.c. (2) iv, 
Lower California. 
. 8. Dipodida 1 . 
Sminthus Jlavus, n. sp., True, P. U. S. Mus, xvii, p. 341, Kashmir. 
Zapus, tricinctus, n. sp., Rhoads, P. Ac. Philad. 1894, p. 421, Brit. 
Columbia. 
9. OCTODONTIDAi). 
Aulacodus gregorianus, n. sp., Thomas, Ann. Nat. Hist. (6) xiii, p. 202, 
Brit. E. Africa. The milk-dentition of the adult also noticed. 
Aulacodus swinderianus , anatomical notes ; Langkavel, supra , p. 10. 
t Neoremys variegatus, n. sp., Amegiiino, Bol. Ac. Cordoba, xiii, p. 324, 
Tertiary, Patagonia. 
f Scleromys osbornianus, n. sp., Amegiiino, t. c. p. 325, ibid. 
fAdelphomys eximius, n. sp., Amegiiino, l. c., ibid. 
f Stichomys arenarus and regius, n. spp., Amegiiino, t. c. p. 326, ibid,. 
\Spaniomys biplicatus , n. sp., Amegiiino, l. c. t ibid. 
