Another specimen from "Souinlonie" Creek, Clark County, Mississippi, has the coloration and rostral configuration of _primulina_, narrow mastoidal breadth and smaller teeth of _noveboracensis_ and skull of large size with "full" braincase as in _olivacea_. No. 235364, U. S. Nat. Mus., from the Mobile River at the "L. and N. RR. Crossing," Mobile County, Alabama, although definitely _olivacea_, shows approach to _arthuri_ in that the dorsal outline of the skull is longitudinally more convex and the tympanic bullae are less inflated than in _olivacea_ and in that the color of the underparts is almost exactly as in the type specimen of _arthuri_. The young specimen labeled as from "Silver Springs," Florida, has large tympanic bullae (17 mm. long) and several characters that show its relationship to _peninsulae_ as that race is now understood. Because the sex is unknown the identification as _olivacea_ is tentative and is made on the assumption that the specimen is a male. If it is instead a female, the animal is referable to _peninsulae_. An adult, female specimen in the Charleston Museum, no. 27.239.1, taken at St. Matthews, South Carolina, on December 8, 1927, contained four embryos which averaged 19 mm. in length and 47.75 centigrams in weight. Another adult female, in the Charleston Museum, no. 32.32, taken on February 21, 1932, at the same place, has prominent mammae, and the collector has noted that two were slightly active. Sixteen of twenty-nine adults examined show infestation of the frontal sinuses by parasites. However, in none is the malformation of the frontal region so great as frequently occurs in _M. f. noveboracensis_. _Specimens examined._--Total number, 52, arranged alphabetically by states and from north to south by counties in each state. Except as otherwise indicated specimens are in the University of California Museum of Vertebrate Zoölogy. =Alabama.= _Lawrence County_: White Creek, 1; Little Sand Mt., Shoal Creek, 2. _Winston County_: 7-1/2 mi. N Nauvoo, 1; 8 mi. N Nauvoo, 1. _Lauderdale County_: near Leighton, 9 mi. N Tennessee River, 1[91]. _Colbert County_: Leighton, 1[91]. _Autauga County_: Autaugaville, 1[91]. _Dale County_: Midland City, 1[91]. _Mobile County_: Mobile River, 12 mi. NE Mobile, 1[91]. =Florida.= _Alachua County_: Gainesville, 4[61]. _Marion County_: "Silver Springs," 1.