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Show 1887.] MAMMALS FROM DEMERARA. 151 peculiar Dormouse-like subgenus Rhipidomys is a very interesting fact, and shows how much these small mammals have been neglected by the very numerous collectors who have worked in the different parts of ATU'aoa," T h e following is a list of the species, with short notes by Mr. Sclater upon their habits, &c. 1. VESPERUGO (VESPERUS) HILARII, Geof. a. Maccasseema, Pomeroon R., 15/12/86. " Caught in the store-room in the daytime ; apparently it was crawling about the place, and made no attempt to fly away."- 2. FURIA HORRENS, F. CUV. a. Maccasseema, 11/86. " This was the common House-bat of Maccasseema and flew about the premises at dusk. The individual obtained was killed by Mr. im Thurn."- W.L. S. 3. RHYNCHONYCTERIS NASO, Wied. a-d. Marakka, 20 miles up the Pomeroon, 15/12/86. e. Near Maccasseema, 5/12/86. " These Bats cling most of the day to the stump of a tree overhanging the water, and when disturbed take short flights and again return to the same place."-TV. L. S. See also Dobson, Cat. Chiropt. B. M. p. 368 (1878), and im Thurn, 'Among the Indians of Guiana,' p. 115 (1883). 4. SACCOPTERYX LEPTURA, Schr. a. Calicoon, close to the junction of the Essequibo and Maza-runi Rivers, 14/11/86. "This Bat I knocked down about dusk, say 5.30 P.M., with a long stick, just outside the house. Several others were flying about, but I was unable to secure any more."-W. L. S. In this specimen the wing-pouches are unusually large and distended, and from each of them there projects a prominent white frill of skin, which can apparently be exserted or withdrawn at pleasure. From the marked development of these organs, undoubtedly sexual in their nature, it may be inferred that the late autumn is the pairing-time of this species, at least in Guiana. 5. GLOSSOPHAGA SORICINA, Pall. a, b. Pen Hope, 13/10/86. On the coast 20 miles east of Georgetown. " This Bat was found in the house in considerable numbers."- TV. L. S. 6. HOLOCHILUS (NECTOMYS) SQUAMIPES, Brandt. a. Young. Pen Hope, 12/10/86. "Caught in the cane-fields, and brought to me by a coolie." - TV. L. S. |