Estrutura da pelagem e padrão cuticular de pêlos de Anoura caudifer (É. Geoffroy Saint-Hilare, 1818) e Anoura geoffroyi Gray, 1838 (Chiroptera, Phyllostomidae) como ferramenta de identificação

• Autor(a) principal: Carvalho, Andréia Matos de
• Data de Publicação: 2010
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/2242
• topic: Tricologia; Chiroptera; Anoura caudifer; Anoura geoffroyi; Trichology; Chiroptera; Anoura caudifer; Anoura geoffroyi; CNPQ::CIENCIAS BIOLOGICAS::ZOOLOGIA::TAXONOMIA DOS GRUPOS RECENTES

The trichological knowledge of chiropterans is still limited, and even the Phyllostomidae family, with a great species diversity, was little studied. The present work has as its objective to determine coat structure and hair cuticle pattern of Anoura caudifer (É. Geoffroy Saint-Hilare, 1818) and Anoura geoffroyi Gray, 1838, collected in Minas Gerais, by checking if there is variation among hair portions between the sampled points on the body of the animal. It was used 20 specimens of Anoura (five males and five females of A. caudifer and A. geoffroyi). Hair tufts were sampled from nine points of the body of the animal and mounted on histological blades (stereoscopic and optical microscopy) and on stubs (scanning electron microscopy). Types and subtypes of hair were defined according to their shape. It was evaluated five portions on the hair: proximal, stem, intermediate, shield and apex. Structure of the coat was defined based on types and distribution of hair and cuticle patterns based on type, shape, arrangement and dimension and opening of scales, ornamentation and visualization of edges of scales. For both species, it was identified six different types of hair in addition to vibrissae: straight hair (subtype: primary guard-hairs, 1B and 1C); 2: hair with wavy stem and straight shield (subtype: secondary guard-hair and 2B); wavy hair (sub-hair); 4 hair with straight stem and from the middle wavy stem; 5 straight hair but with a sharp curve on the shield; and 6 straight hair with waves at the intermediate portion. These hairs are presented with an irregular shape at the sampled points. Cuticle patterns were similar among all the variables analyzed, except for type 6 hair, which varied among species. Analysis among portions conferred homogeneous cuticle patterns (types 2B, 3, 4, 5, and 6 in A. caudifer) and cuticle heterogeneous patterns (types 1, 2A, 6 in A. geoffroyi and vibrissae). The results obtained were satisfactory because they conferred new founds on coat structure and detailed descriptions of Anoura hair cuticle patterns.