1899.] NATURAL SCIENCES OF PHILADELPHIA. 389 



basal length, 54 (54); basilar length, 50 (50); henseliou to pos- 

 terior edge of bony palate (median), 25 (25.4); least (lateral) 

 length of bony palate, 5.8 (6.4); posterior edge of bony palate to 

 hamular, 15.4 ( — ); length of incisive foramen, 16.4 (16) ; width 

 of incisive foramina, 6.8 (7); zygomatic breadth, 33 (33); inter- 

 orbital breadth (inclusive of supraorbital processes), 16.4 (17); 

 greatest breadth of brain case, 27 (27); breadth of rostrum at 

 anterior base of zygomata, 7.6 (9); greatest (diagonal) length 

 of nasals, 29.2 (29); greatest breadth across both nasals, 14 (15) ; 

 least breadth across both nasals, 8.4 (8.4); depth of brain case 

 at anterior end of basioccipital, 22.8 (22.6); diastema, 18 (18); 

 maxillary molar series (alveoli), 12.4 (12 4); mandible, 49 (49); 

 mandibular molar series (alveoli), 13.6 (12.6). 



Specimens Examined. — Twelve, all from the type locality. 



General Remarks. — Lepus fioridanus caniclunis agrees with L. 

 floridanm chapmani in its small size, but differs in much paler 

 color — therefore in exactly the opposite direction from the dark 

 L. floridanus alacer Bangs. Its most striking peculiarity, as com- 

 pared with its nearest allies, is its very pale rump and tail. 



Lepus floridanus sanctidiegi subsp. nov. 



Tijpe adult 9 (skin and skull), No. 60,668 United States 

 National Museum, collected at monument No 258 (Pacific 

 Ocean), Mexican boundary line, San Diego County, California, 

 July 10, 1894, by Edgar A. Mearns. 



General Characters. — Like Lepus floridanus auduhoni Baird, but 

 color paler throughout and belly pure white. Ears probably 

 longer than in true auduhoni. 



Color. — Back a uniform grizzle of black and light cream buff, 

 the latter slightly predominating. On the sides the buff becomes 

 even paler, while the amount of black is noticeably reduced. On 

 the rump the buff fades abruptly to whitish gray, producing a 

 small but well-defined pale rump patch. Under fur on back light 

 bluish gray, changing to dull wood brown at tip. Long hairs of 

 back bluish gray at base, darkening to nearly black close below 

 broad subterminal cream buff band, and black at tip. Tail dark 

 brown above, the hairs inconspicuously paler tipped ; snowy white 

 beneath. Nape patch clear ochraceous buff, slightly more tawny 

 than the figure given by Ridgway (Nomencl. of Colors, pi. v. 



