214 Mr. O. Thomas on some small EXPLANATION OF PLATE VL* Fig.i-Amphidromus sumbaensis*. Fig. 2. Jloresimnis. Fiq. 3. consohriiiiis. Fi(js. 4, A a, 4 h. Trochomorpha andamanica. Fiys, 5, 5 a, 5 h. pseudosanis. Fiy. 6. Porphyrohnphe cqjproxiniatn *. Fi(/s. 7, 7 a. Helix (Xenothauma) Baro7iif. Fiy. 7 b. Ditto *. Nucleus. Figs. 8, 8 «, 8 b. Bidimulus Baroni. Fiy. 9, Oleacina Underwoodi. XIX. — On some small Mammals from Salta, iV. Argentina. By Oldfield Thomas. Dr. C. SpeGAZZINI, the well-known fungologist of La Plata, has been good enouph to present for division between the Buenos Ayves and British Museums a small collection of Bats and Rodents made by him in Salta during the last southern summer season (Dec. 1896-Feb. 1897). Among these specimens there are representatives of two new mice, now described, while the other species obtained also deserve some mention. 1. Vesper ttliOf sp. a-c. Upper Cachi. d. Viiia. c,/. Pampa Grande. This fawn-coloured Vespertilio I can identify with no Bpecies contained in Dobson's Catalogue ; but it may perhaps prove to be one of Azara's species, and 1 do not therefore care to describe it as new. A full identification of Azara's bats and murines is very much needed before Argentine specimens, whether from the north or south, can be satisfactorily determined. Thanks to the collections made by Messrs. Perrens, Borelli, Spegazzini, and otheis, I hope soon to be in a position to publish an identification of all the species described by the Spanish author referred to. * I take this opportunity of figuring some of the species described by me in this Ma^aznie (ser. 6, \ol. xviii., July 1896). t Dr. Kobeit, in the Conch. Cab. ed. ii., Helix, p. 843, pi. xxviii. figs. 4-6, places this species in the subgenus Bostnjx; he evidently did not read the original aetcription or examine his specimen with a lens, as he makes no mention of the remarkable sculpture of the nucleus of X. Baroni, which separates it from Bostryx and other genera.
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