Pariosternarchus amazonensis, new genus and species, is described from the Amazon river of Brazil and Peru. It is unique among apteronotids in possessing a wide head that is flattened on its entire ventral surface, and in possessing highly expanded mandibular laterosensory canals. The phylogenetic position of Pariosternarchus is hypothesized by inclusion in a previously published data matrix of...

the geographic location of the elamite terrain which lies in parts of today's khuzestan caused a middle-man-role for this region situated in between water-ways leading to the head of the persian gulf and iranian plateau and mesopotamia. in addition to the fact that this territory, possessing several rivers, was very fertile, the reality that of one of the most important iranian trade-route...

A new cucullanid nematode, Dichelyne mexicanus sp. n., is described from the intestine of three species of fishes, Agonostomus monticola (Bancroft) (Mugilidae, Perciformes) (type host), Ictalurus balsanus (Jordan et Snyder) (Ictaluridae, Siluriformes) and Cichlasoma beani (Jordan) (Cichlidae, Perciformes), from three rivers (La Maquina River, Veracruz; Chontalcoatlán River, Guerrero and Santiag...

Abstract This study examines how the availability of river transportation routes affected effectiveness Qing artillery corps. The Yangzi River system and Pearl guaranteed timely stable support for siege force in Jiangnan Liangguang respectively. was made possible by Qing’s large reserves cannons sizeable water forces at several strategically important cities along two rivers, which constituted ...

A new nematode species, Atractis vidali sp. n., is described from the intestine of cichlid fishes, Vieja intermedia (Günther) (type host) and Cichlasoma pearsei (Hubbs), from specimens collected in three localities in the Mexican states of Campeche (Santa Gertrudis Creek) and Chiapas (Cedros and Lacanjá Rivers). It differs from the only other atractid species reported in fishes of Mexico, Atrac...