284 SCAI'ANI's DVMKCODON — r^KrHOTKICiniS. 



except loss of last left upjier molar. The side view of tliis skull is lijrureil by 

 True (I'rof. l'. S. Nat. Mus., XIX, No. 1101, j)]. ;{, tig. 'A). 



This skeleton is one of Dr. Ayres's original specimens, and probably the 

 only one of them now in existence. It seems well to treat it as a tyjje, although 

 it was not so indicated by the original describer. 



Scapanus orarius Trut'. 



\'rnr. I'.S. \at. Mus., XIX, No. llOi, December 21, ISllt;, p. ry2. 



:t\'VVi- ''*^l<iii siiul skull. Adult tVuiiiie. Shojilwiiter Hay, Washing- 

 ton. August :^(», 1855. Collected by Dr. ,]. (J. Cooper. Skin 

 catalogued February 26, 185H; skull. May 23, 1898. 



SjH'cimen recently made into a good study skin. The posterior half of the 

 cranium is broken off, though most of it is still present; the part of the skull 

 anterior to the middle of the cranium and the mandibles, perfect. 



Type flesignated by number 'i81, an errrJr for 1381. 



Scapanus truei Merriani. Biological Survey collection. 



I'roc. I'.iol. Soc. Wash., XI, p. 102, April 2(), 1.S97. 



79290. Skin and skull. Adult. Lake City, Modoc County, Califor- 

 nia, .lunc 15. lsim;. Collected by (-. P. Streatoi". Original num- 

 ber 5!>89. 



Well-maile skin in good condition; skull perfect, except for slJLdit irrcirularily 

 ol foi-iuneii magmiiii. 



Genus DYMECODON. 



Dymecodon pilirostris True. 



Proc. V. S. Xat. .Mus., IX, p. 97, September 25, ISSti. 



iS^;^.^ Alcoholic (skull removed). Immature male. Mouth of Yeddo 

 iiay, Yenosima, -Japan. Collected by l*rof. E. S. Morse. Received 

 from the I^oston Society of Natural History February 19, 1878. 

 C-atalogued December 21, 1885. 



The ak;oholic is in rather bad condition. Considerable hair has slipped from 

 the belly. It has been split open from the chin nearly to the anus, to permit 

 the removal oi the .skull and shoulder girdle. The right zyg(mia is lacking and 

 the left basal ])itrtion of the l)rain case is injured, both ascemling rami of the 

 mandible broken. 



The single specimen is referred to by nimiber in the original description. 



Genus N E U ROTR ICH US. 



Urotrichus gibbsii Baird. 



Mammals of North America, i>. 7(), pi. 2S, 1857. 

 = Neurothrichus gibbsii (Baird). See Giinther, Proc. Zool. Soc. London, 1880, 

 pi. 42, June 1, 1880. 



AV:c ^l<i'i ii'ifl skull. Immature. White River, Cascade Moun- 

 Iniiis, \N':isliingt()n. .Iidy 15, 1S54. Collect<Hl by George Gibbs. 



