Pallisentis


Pallisentis is a genus in Acanthocephala.

Taxonomy

The genus Pallisentis has three subgenera: Brevitritospinus, Demidueterospinus, and Pallisentis. The National Center for Biotechnology Information indicates that a phylogenetic analysis has been published on Pallisentis celatus.

Description

Pallisentis species consists of a proboscis covered in hooks and a trunk.

Species

Pallisentis Van Cleave, 1928 is divided into three subgenera: Brevitritospinus, Demidueterospinus, and Pallisentis with 26 species:Pallisentis channai Gupta, Maurya and Saxena, 2015Pallisentis vinodai Gupta, Maurya and Saxena, 2015
  • * Pallisentis Amin, Heckmann, Ha, Luc and Doanh, 2000Pallisentis allahabadii Agarwal, 1958Pallisentis cavasii Gupta and Verma, 1980Pallisentis croftoni Mital and Lal, 1981Pallisentis fasciati Gupta and Verma, 1980Pallisentis fotedari Gupta and Sinha, 1991Pallisentis guntei Sahay, Nath, and Sinha, 1967Pallisentis indica Mital and Lal, 1981Pallisentis mehrai Gupta and Fatma, 1986Pallisentis punctatiGupta, Gupta, and Singhal, 2015
Host: Channa punctatus in Bareilly, Uttar Pradesh, India.Pallisentis vietnamensis Amin, Heckmann, Ha, Luc and Doanh, 2000
  • * Pallisentis Amin, Heckmann, Ha, Luc and Doanh, 2000Pallisentis basiri Farooqi, 1958Pallisentis ophiocephali
  • * Pallisentis Van Cleave, 1928Pallisentis celatus Pallisentis cholodkowskyi Pallisentis chongqingensis Liu and Zhang, 1993Pallisentis clupei Gupta and Gupta, 1980Pallisentis colisai Sarkar, 1956Pallisentis gaboes Pallisentis garuai Pallisentis gomtii Gupta and Verma, 1980Pallisentis guptai Gupta and Fatma, 1986Pallisentis jagani Koul, Raina, Bambroo and Koul, 1992Pallisentis kalriai Khan and Bilqees, 1985Pallisentis magnum Saeed and Bilgees, 1971Pallisentis nagpurensis' Pallisentis nandai Sarkar, 1953Pallisentis pesteri Pallisentis rexus Wongkham and Whitfield, 1999Pallisentis singaporensis Khan and Ip, 1988
P. singaporensis has 8 to 12 proboscis hooks per circle, gradually declining in size posteriorly. They measure from the anterior are 62 to 64, 49 to 54, 36 to 46 and 24 to 28 um long. The trunk spines are conical and do not extend to the posterior end in 25 or 26 circles, each with 10 spines. In the male, the cement gland is long and has 23 to 25 giant nuclei and lack Saefftigen's pouch. They have unequal lemnisci. The female gonopore is terminal.Pallisentis sindensis Khan and Bilqees, 1987 Pallisentis umbellatus Van Cleave, 1928'Pallisentis ussuriensis'''''

Distribution

The distribution of Pallisentis species is determined by that of its hosts.

Hosts

The life cycle of an acanthocephalan consists of three stages beginning when an infective acanthor is released from the intestines of the definitive host and then ingested by an arthropod, the intermediate host. The intermediate hosts of most Pallisentis species are not known. When the acanthor molts, the second stage called the acanthella begins. This stage involves penetrating the wall of the mesenteron or the intestine of the intermediate host and growing. The final stage is the infective cystacanth which is the larval or juvenile state of an Acanthocephalan, differing from the adult only in size and stage of sexual development. The cystacanths within the intermediate hosts are consumed by the definitive host, usually attaching to the walls of the intestines, and as adults they reproduce sexually in the intestines. The acanthor is passed in the feces of the definitive host and the cycle repeats.
There are no reported cases of any Pallisentis species infesting humans in the English language medical literature.