Archive image from page 30 of Description of fourteen new species. Description of fourteen new species and one new genus of North American mammals descriptionoffou02merr Year: 1889 DESCRIPTION OF A NEW SPECIES OF FREE-TAILED BAT FROM THE DESERT REGION OF SOUTHERN CALIFORNIA, By Dr. C. Haet Mekeiam. NYCTINOMUS FEMOEOSACCUS sp. nov. Type '2-276 $ ad. Agua Caliente, Colorado Desert, California, March 27, 1885. Collected by F. Stephens. Measurements (from the alcoholic specimen).—Total length, 103; head and body, 60; tail, 41; exserted part of tail, 23; head, 23 ; ear from crown, 14; ear from bas
Archive image from page 30 of Description of fourteen new species. Description of fourteen new species and one new genus of North American mammals descriptionoffou02merr Year: 1889 DESCRIPTION OF A NEW SPECIES OF FREE-TAILED BAT FROM THE DESERT REGION OF SOUTHERN CALIFORNIA, By Dr. C. Haet Mekeiam. NYCTINOMUS FEMOEOSACCUS sp. nov. Type '2-276 $ ad. Agua Caliente, Colorado Desert, California, March 27, 1885. Collected by F. Stephens. Measurements (from the alcoholic specimen).—Total length, 103; head and body, 60; tail, 41; exserted part of tail, 23; head, 23 ; ear from crown, 14; ear from base of antitragus, 20: tragus, 1: humerus, 28; fore-arm, 17: third finger: metacarpal, 15; first phalanx, 20; sec- ond phalanx, 19; fifth finger, 44. Fig. 3.—Head of Xycrinomus feoiorosaccus. General characters.—Incisors ~. Lower incisors bifid and crowded ; first upper premolar small, but well developed; second very large, with a large and high antero-internal cusp. Ears thick, united by bases of inner margins from end of nose; ear keel greatly devel- oped, with a large lobe on its lower third: antitragus higher than long, convex anteriorly, slightly concave posteriorly, and separated by a deep notch; tragus subquadrate, hidden behind the large antitragus, its outer angle projecting upward in the form of a small pointed lobule ; upper margin of ear conch with two minute horny projections, not symmetrical on the two sides. Tail more than half exserted. Gular sac present (opening on right side of median line). There is a curious fold of membrane stretching from the inner third of the femur to the middle of the tibia, forming a deep pocket between it and the interfemoral membrane. The wing membrane is attached to the leg at the same point (immediately below the middle of the tibia), so that there are three folds of membrane here. The fur extends out on the wing mem- brane, above and beneath, as far as a line drawn from the middle of the humerus to the junction of the
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