1915.] 



SCALOPTJS INFLATUS, 



53 



SliulL — Much smaller, weaker, and Txarrower than that of S. a. 

 machrinoides , S. a. pulcJier, or S. a, interrnedius; larger than that 

 of S. a. texanus, relatively longer, less depressed postorbitally and less 

 swollen supraorbitally, with longer, na.rrower rostrum; teeth small. 



Measurements. — Type (adult female): Total length, 154; tail 

 vertebrae, 24; hind foot, 19. SlcuTl (of type) : Greatest length, 33.2; 

 palatilar length, 14; mastoidal breadth, 17; interorbital breadth, 7.5; 

 maxillary tooth row, 10.6; mandibular molar-premolar row, 10.5, 



Remarks. — The status and relationships of this form are unknown. 

 The type and only specimen in collections was taken August 13, 

 1896; the rich coppery color may be due in part to a deadening of 

 the summer fur preceding molt and if such proves to be the case 

 the coppery color will not be of diagnostic value. The skull is weak, 

 narrow, moderately high and rounded, and has a long, narrow 

 rostrum; the teeth are much worn, the sutm^s closed, and from all 

 appearances the animal was adult; it was sexed female by the 

 collector. 



Specimen examined. — One, the type. 



SCALOPUS INFLATUS Jackson. 

 Tamaulipas Mole. 

 (PI. II, fig. 11; PL III, figs. 6, 6a; PL VI, fig. 8.) 

 Scalopus inflatm Jackson, Proc. BioL Soc. Washington, voL 27, p. 21, February 2, 1914. 



Type locality. — State of Tamaulipas, Mexico (45 miles from Browns- 

 ville, Texas). 



Type specimen. — No. 52709, U. S. Nat. Mus., Biological Survey 

 collection; young adult, sex unknown; skin and imperfect skull; col- 

 lected in 1892 by F. B. Armstrong. 



Geograpliic range. — Known only from type locahty. 



General cliaracters. — Size smaU, larger than ^S'. a. texanus; skull 

 broad, high, and arched, much inflated in prelachrymal region; 

 rostrum broad, truncate; zygomata heavy. 



Color. — Back between wood brown and drab, becoming ochraceous- 

 buff on cheeks; general tone of underparts much as on back but 

 more mixed with mouse gray. 



Shull. — Size medium, high and arched; prelachrymal region much 

 swollen; audital bullae high and well defined; zygomata heavy; 

 posterior edge of lachrymal foramen meets zygoma at nearly right 

 angle; rostrum broad; mandible heavy, horizontal ramus much 

 arched ventrally; outer groove in third upper premolar pronoimced; 

 first lower premolar small and inconspicuous. 



Measurements. — Type (from dry skin, foot relaxed) : Tail vertebrae, 

 18 ; hind foot, 16.5. Skull (of type) : Palatilar length, 13.4 ; mastoidal 

 breadth, 17; interorbital breadth, 7.1; maxillary tooth row, 11.1; 

 mandibular molar-premolar row, 11. 



