Nelson and Goldman — Neiv Mammals from Lomer California. 27 



Compared with palinarius iiiterpterygoid fossa longer, reaching further 

 forward between last molars, and bullse less inflated. The skull differs 

 from that of raptor in sliglitly smaller size, with interpterygoid fossa 

 usually narrower and reaching furtht'r forward; fourth uj^per premolar 

 narrower au<l bulla* less iuHated. 



MeanKrcniciits of type. — Total length, 715; tail vertebree, 362; hind 

 foot, 70. 



Sorex lagunae sp. nov. 



LAGUNA MOUNTAIN SHREW. 



Type from T^a Laguna, Sierra Laguna, Lower California, ]\h'xico 

 (5,500 ft.). No. 147,110, U. S. National Museum, Biological Survey Col- 

 lection. 9 adult. Collected January 20, 1906, by E. W. Nelson and 

 E. A. Goldman. Original number 10,0oC). 



General characters. — Similar in size to »S'. ornatus but underparts dark 

 grayish brown instead of silvery grayish; tail dusky, nearly unicolor (in 

 ornatufi tricolor) ; feet darker. 



Color (f type (fresh pelage). — ITpperparts nearly uniform dark grayish 

 brown, Ijrowuer than ornatus; underparts brownish, only slightly jtaler 

 than l)ack; feet dusky, darker than in ornatus; tail blackish, under side 

 slightly paler than upper. 



Skull of type. — Generally similar to that of ornatus but upper outline 

 of braincase higher arched, or rising more abruptly from base of rostrum 

 ajid more inflated, l)ringing higlu'st point farther forward; molariform 

 teeth slightly narrower, tliinl unicuspid smaller. 



Measurements of type. — Total length, 08; tail vertebne, 41; hin<l foot, 

 12.5. Skull: breadth of braincase, 7.S; i)0st-])alatal length, 7.5; inter- 

 orbital breadth, :).5. 



Sorex californicus juncensis subsp. nov. 



Tl'LE SIIKKW. 



Type from Socorro, 15 miles south of San Quintin, Lower California, 

 Mexico. No. 130,504, U. S. National Museum, Biological Survey Collec- 

 tion. 9 (?) young adult. Collected September 1, 1005, by E. W. Nelson 

 and E. A. (4oldnuin. Original number 17,010. 



Geiiend characters. — Size small; most like callfornicns, but tail slightly 

 longer; feet darker; underparts tinged with dull brownish (grayish in 

 californicus) ; l)raincase higher, narrower, less datteued. 



Color (rather worn pelage). — Upperparts dull smoky brown mixed with 

 grayish; underparts plumbeous overlaid with dull brownish gray; tail 

 bicolor, dusky above, grayish below, becoming darker near tip. 



Skull. — Similar to that of californicus, but braincase narrower, higher 

 (more arched on upper outline) ; third unicuspid very small, as in cali- 

 fornicus. 



Measurements of type. — Total length, 101; tail vertebra^, 41; hind foot, 

 12.5. Skull: greatest length (condyle to front of iiu'isor), l(i.2; basion 

 to gnathion, i;!.0; breadth of braincase, 7.5; post-palatal length, 7.2; 

 interorbital l)readth, ;).5. 



