RESUMO
Two new earthworm species from grassland and herbaceous plant formations in the departments of Arauca y Casanare (Orinoquian region of Colombia) are described, Righiodrilus cusiani sp. nov. (Glossoscolecidae) and Andiodrilus cravijae sp. nov. (Rhinodrilidae). Righiodrilus cusiani sp. nov. is close to R. arapaco (Righi, 1982) in the position of the clitellum, but differs in the extension of the tubercula pubertatis, the extension of the seminal vesicles and the position of the male pores. Andiodrilus cravijae sp. nov. is close to A. major Michaelsen, 1900 in the position of the clitellum and the spermathecal pores, but is different in the extension of the tubercula pubertatis and in the position of the male and female pores.
Assuntos
Oligoquetos , Distribuição Animal , Animais , Colômbia , Feminino , MasculinoRESUMO
Two new earthworm species are described, Periscolex malibu sp. nov. (Rhinodrilidae) and Righiodrilus lebrijae sp. nov. (Glossoscolecidae). They were found in relicts of tropical dry forests surrounding wetlands in the southern department of Cesar, located near the Caribbean coast of Colombia. Periscolex malibu sp. nov. is close to P. fuhrmanni Michaelsen, 1913 by the position of both clitellum and tubercula pubertatis, but differs in the extension of the clitellum and in the presence of five pairs of spermathecae. Righiodrilus lebrijae sp. nov is close to R. paolettii Righi, 1984a by the extension of the clitellum, but differs in the extension of the tubercula pubertatis, the extension of the seminal vesicles, the position of the male pores, the arrangements of setae, and the shape of the spermathecae.
Assuntos
Oligoquetos/classificação , Distribuição Animal , Estruturas Animais/anatomia & histologia , Estruturas Animais/crescimento & desenvolvimento , Animais , Tamanho Corporal , Região do Caribe , Colômbia , Ecossistema , Feminino , Masculino , Oligoquetos/anatomia & histologia , Oligoquetos/crescimento & desenvolvimento , Tamanho do ÓrgãoRESUMO
Se describen e ilustran dos especies nuevas de lombrices de tierra (Oligochaeta: Annélida) de la familia Tumakidae; Tumak amari sp. nov. y Tumak congorum sp. nov., recolectadas en relictos de bosque seco aledaños a las ciénagas del Sur del departamento del Cesar, en el Caribe colombiano. La familia Tumakidae se caracteriza principalmente por presentar las glándulas calcíferas antes de la molleja, y por la presencia de poros dorsales. Tumak amari sp. nov. y Tumak congorum sp. nov. son próximas a Tumak hammeni (Righi, 1995), pero se diferencian por las características del clitelo, la zona pubertaria, los sacos testiculares, la posición de los poros masculinos y el número, la forma y la posición de las espermatecas. Las dos nuevas especies son los primeros registros del género después de la descripción original.
Two new species of earthworms (Oligochaeta: Annelida) Tumakidae family; Tumak amari sp. nov. and Tumak congorum sp. nov. are described and illustrated. They were collected in relict forest fragments adjacent to wetlands in the southerm region of Cesar department of Cesar, in the Colombian Caribbean. Tumakidae family is characterized mainly by of the calciferous gland before the gizzard, and the presence of dorsal pores. Tumak amari sp. nov. and Tumak congorum sp. nov. are close to Tumak hammeni (Righi, 1995), but they differ by the clitelum extension, the puberal zone, the testicular sacs, the position of the male pores, and by the number, shape and position of spermathecae. The new species are the first records of the genus after the original description.
Assuntos
Animais , Especificidade da Espécie , Oligoquetos/anatomia & histologia , Oligoquetos/classificação , Áreas Alagadas , ColômbiaRESUMO
Se describen e ilustran dos especies nuevas de lombrices de tierra (Oligochaeta: Annélida) de la familia Tumakidae; Tumak amari sp. nov. y Tumak congorum sp. nov., recolectadas en relictos de bosque seco aledaños a las ciénagas del Sur del departamento del Cesar, en el Caribe colombiano. La familia Tumakidae se caracteriza principalmente por presentar las glándulas calcíferas antes de la molleja, y por la presencia de poros dorsales. Tumak amari sp. nov. y Tumak congorum sp. nov. son próximas a Tumak hammeni (Righi, 1995), pero se diferencian por las características del clitelo, la zona pubertaria, los sacos testiculares, la posición de los poros masculinos y el número, la forma y la posición de las espermatecas. Las dos nuevas especies son los primeros registros del género después de la descripción original.(AU)
Two new species of earthworms (Oligochaeta: Annelida) Tumakidae family; Tumak amari sp. nov. and Tumak congorum sp. nov. are described and illustrated. They were collected in relict forest fragments adjacent to wetlands in the southerm region of Cesar department of Cesar, in the Colombian Caribbean. Tumakidae family is characterized mainly by of the calciferous gland before the gizzard, and the presence of dorsal pores. Tumak amari sp. nov. and Tumak congorum sp. nov. are close to Tumak hammeni (Righi, 1995), but they differ by the clitelum extension, the puberal zone, the testicular sacs, the position of the male pores, and by the number, shape and position of spermathecae. The new species are the first records of the genus after the original description.(AU)