Himalayacaris alaknanda n. gen., n. sp. (Copepoda: Harpacticoida: Parastenocarididae) from the hyporeic zone of a Himalayan River, northern India

Reddy, Y. Ranga; Totakura, Venkateswara Rao; Corgosinho, Paulo Henrique Costa

doi:10.1163/1937240x-00002281

Cited by 11 publications

(11 citation statements)

References 27 publications

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“…The monophyletic status of the Parastenocarididae, Parastenocaridinae and Fontinalicaridinae were discussed in previous studies (Martínez Arbizu and Moura 1994;Schminke 2010;Ranga Reddy et al 2014). Characters 1-29 are compiled from the contributions mentioned above.…”

Section: Discussionmentioning

confidence: 85%

“…Characters 1-29 are compiled from the contributions mentioned above. For polarization of these characters we recommend the studies of Martínez Arbizu and Moura (1994) and Ranga Reddy et al (2014). The diagnostic characters for Parastenocaridinae and Fontinalicaridinae are proposed and discussed by Schminke (2010).…”

Section: Discussionmentioning

confidence: 99%

“…There is a slight gap between the lateral setae (setae I, II and III) and dorsal seta VII in Remaneicaris euniceae Corgosinho & Martínez Arbizu, 2005, and Parastenocaris trichelata Reid, 1995(Schminke 2010. The lateral setae I, II and III are inserted at the middle of the furca, and the dorsal seta VII is inserted distally in Himalayacaris alaknanda Ranga Reddy, Totakura & Corgosinho, 2014. The anterior position of setae I, II and III, and the posterior situation of the dorsal seta VII is the condition described by Schminke (2010) for Fontinalicaridinae.…”

Section: Length and Shape Of Enp Of Female P3 (Character 30)mentioning

confidence: 99%

“…Ranga Reddy et al (2014) considered the female P3 with a terminal seta fused to the enp as a plesiomorphy for the Parastenocaridinae. However, we consider this character as an autapomorphy for the Parastenocaridinae, and the reduced, unarmed and linguiform enp as a plesiomorphy for the Fontinalicaridinae.…”

Section: Length and Shape Of Enp Of Female P3 (Character 30)mentioning

confidence: 99%

“…The morphology of the penultimate male A1 segment of Simplicaris veneris (Cottarelli and Maiolini, 1980 (2004), the transformation of the penultimate segment of the male antennule may have appeared independently within the family Parastenocarididae and should be considered a derived state. Instead, we consider the modifications of the 5th and 7th segment of the male A1 as synapomorphies for the Parastenocaridinae (Ranga Reddy et al 2014). However, the transformation series of the penultimate segment is difficult to establish.…”

Section: Penultimate Segment Of the Male A1 (Character 32) And Genicmentioning

confidence: 99%

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A new genus of Parastenocarididae (Copepoda, Harpacticoida) from the Tocantins River basin (Goiás, Brazil), and a phylogenetic analysis of the Parastenocaridinae

Corgosinho¹,

Schizas²,

Previattelli³

et al. 2017

ZSE

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Eirinicaris antonioi gen. et sp. n. (Parastenocaridinae) is described from the Brazilian rocky savannas, an ecosystem under heavy anthropogenic pressure. The subfamily is distributed worldwide, with representatives in Africa, Asia, Australia, Europe, and North America. This is the first time a non-Remaneicaris Parastenocaridinae is described from a Neotropical region indicating that Parastenocaridinae species were already present in a vast geographical area, before the split of the Gondwana. The new taxon is included within the subfamily Parastenocaridinae based on the following characters: 1) segments 5, 6, and 7 of the male antennules forming a functional unit for clasping the female; 2) segment 7 with small process at the inner margin, forming an incipient "pocket-knife" structure with segment 6; 3) last segment pointing medially when closed; 4) the endopod of female leg 3 one-segmented and spiniform, without distal seta; 5) the apophysis and terminal seta of the exopod of male leg 3 are fused; 6) the genital field is rectangular and much broader than the height in the female; 7) the group of three lateral setae I, II, and III of the furca and the dorsal seta are situated at the same level in the female; and 8) the basis of leg 1 has an inner seta. The new taxon can be distinguished from all other Parastenocaridinae genera by the unique sexually dimorphic telson and furca. In the male, the dorsal seta is inserted at the midlength of the furca and setae I, II, and III are displaced anteroventrally. A phylogenetic analysis of the subfamily Parastenocaridinae is given based on the description of the type species of each genus and available descriptions of all Parastenocaridinae species. Eirinicaris gen. n. is the sister taxon of a clade formed by Kinnecaris and Monodicaris, sharing with them the long male and female leg 5 with a long spiniform process, and with Kinnecaris, a distal pore on the spiniform process.

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Section: Discussionmentioning

confidence: 85%

Section: Discussionmentioning

confidence: 99%