Three new species of abdominal shrimp parasites (Crustacea: Isopoda: Bopyridae: Hemiarthrinae) from the Indo-West Pacific

Zootaxa ◽  
2020 ◽  
Vol 4845 (2) ◽  
pp. 264-274
Author(s):  
JIANMEI AN ◽  
RURU CHEN ◽  
GUSTAV PAULAY

Three new species of the parasitic isopod subfamily Hemiarthrinae Markham, 1972 are described. Allodiplophryxus unilateralis n. sp. is described from Western Australia, infesting the palaemonid shrimp Jocaste lucina (Nobili, 1901), and females differ from the only other species in the genus in possessing six pleomeres, an asymmetrical first oostegite and pleopods restricted to the short side of the body. Loki athanus n. sp. is described from Madagascar, infesting the alpheid shrimp Athanas parvus de Man, 1910, and females differ from the only other species in the genus in possessing well-developed lateral plates on pleomere 4 and four pairs of uniramous pleopods. Hemiarthrus alphei n. sp. is described from French Polynesia, infesting the alpheid shrimp Alpheus crinitus Dana, 1852, and females differ from the four other known Hemiarthrus species in having pleomeres with well-developed, symmetrical lateral plates, a barbula with three pairs of projections and a pointed pleotelson. Keys to species of Hemiarthrus and all genera of the Hemiarthrinae are presented. 

Zootaxa ◽  
2011 ◽  
Vol 2839 (1) ◽  
pp. 67 ◽  
Author(s):  
ARTHUR ANKER

Three new species of the alpheid shrimp genus Salmoneus Holthuis, 1955 are described from shallow waters of Guam (Mariana Islands), Moorea (Society Islands, French Polynesia), and Panglao (Bohol, the Philippines). The description of Salmoneus paulayi n. sp. is based on three specimens collected on reef flats in the vicinity of Guam’s Apra Harbor, Talofofo, and Mangilao. Salmoneus komaii n. sp. is described on the basis of a single specimen collected at Barracuda Rock, one of Guam’s popular diving sites. Finally, Salmoneus poupini n. sp. is described based on eight type specimens from several sites in the Moorea lagoon and one additional specimen from Panglao. The three new species appear to be closely related to each other, sharing several features on the minor and major chelipeds, the most obvious being the presence of widely spaced teeth on the finger cutting edges of the major chela. In addition, S. paulayi n. sp. is characterised by the presence of rounded, finely striated convexities intercalated between the teeth on the fingers of the major chela; these convexities are present, but much less developed in S. komaii n. sp. and S. poupini n. sp. The closest relative of these three new species appears to be S. sketi Fransen, 1991 from the eastern Atlantic, the only other species of the genus with widely spaced teeth (instead of serrations) on the cutting edges of the major chela.


1969 ◽  
Vol 47 (5) ◽  
pp. 829-840 ◽  
Author(s):  
R. V. Anderson

Three new species of soil-inhabiting nematodes, Teratocephalus decarinus, T. subvexus, and T. lirellus, are described. Contour and inclination of cephalic plicae, relative development of the cervical expansion, character of the body annules, number of longitudinal body ridges, and size of the metarhabdions are considered useful taxonomic characters. Morphology of the head, excretory and reproductive systems, and the cuticle is discussed and compared. All females have two uteri and bifurcated tail termini, which have not been reported previously for any known species in this genus. A taxonomic key to the nominal species is presented. T. demani Stefański, 1924 is transferred to Euteratocephalus Andrássy, 1958. T. terrestris, after De Coninck (1935), is regarded as different from T. terrestris (Bütschli, 1873) de Man, 1876 and is named T. deconincki.


Zootaxa ◽  
2018 ◽  
Vol 4482 (3) ◽  
pp. 579 ◽  
Author(s):  
JIANMEI AN ◽  
LING GONG ◽  
GUSTAV PAULAY

Three new species in the parasitic isopod genus Bopyrissa Nierstrasz & Brender à Brandis, 1931, recorded from Kiribati, the Mariana Islands and French Polynesia, are described. These three species, B. distorta sp. nov., B. guamensis sp. nov. and B. oceania sp. nov., are the first species of the genus recorded from Oceania, occurring on three different hermit crab host species of genus Calcinus. The diversity of the genus is therefore increased to ten species. Bopyrissa distorta sp. nov. can be distinguished from congeners by the markedly distorted sinistral body of females and fused pleon of males. Bopyrissa guamensis sp. nov. differs from other dextral species of Bopyrissa in having a strikingly tuberculated edge to the pleomeres of females. Bopyrissa oceania sp. nov. differs from related species in that females possess eyes and that the barbula has smooth falcate projections on each side. A key to the ten species of Bopyrissa is presented, together with a tabular summary of their known geographic and host ranges. 


2011 ◽  
Vol 20 (1) ◽  
pp. 161-173
Author(s):  
A.P. Kassatkina

Resuming published and own data, a revision of classification of Chaetognatha is presented. The family Sagittidae Claus & Grobben, 1905 is given a rank of subclass, Sagittiones, characterised, in particular, by the presence of two pairs of sac-like gelatinous structures or two pairs of fins. Besides the order Aphragmophora Tokioka, 1965, it contains the new order Biphragmosagittiformes ord. nov., which is a unique group of Chaetognatha with an unusual combination of morphological characters: the transverse muscles present in both the trunk and the tail sections of the body; the seminal vesicles simple, without internal complex compartments; the presence of two pairs of lateral fins. The only family assigned to the new order, Biphragmosagittidae fam. nov., contains two genera. Diagnoses of the two new genera, Biphragmosagitta gen. nov. (type species B. tarasovi sp. nov. and B. angusticephala sp. nov.) and Biphragmofastigata gen. nov. (type species B. fastigata sp. nov.), detailed descriptions and pictures of the three new species are presented.


Zootaxa ◽  
2021 ◽  
Vol 4996 (2) ◽  
pp. 363-373
Author(s):  
EMANUEL PEREIRA ◽  
BRENDA LÍA DOTI ◽  
DANIEL ROCCATAGLIATA

A new bopyrid, Pseudione chiesai n. sp., is herein described based on an ovigerous female and an adult male found in the right branchial chamber on a specimen of Munida spinosa Henderson, 1885. This parasite was collected in the Mar del Plata submarine canyon at 819 m depth during the expedition “Talud Continental I” carried out by the Argentine RV Puerto Deseado in 2012. P. chiesai n. sp. belongs to the Pseudione “crénelés” group sensu Bourdon (1972, 1976), which currently contains seven species, all of which have galatheoid crabs as hosts. P. chiesai n. sp. can be separated from the other species in the Pseudione “crénelés” group by the following combination of characters: (1) both sides of the body convex, (2) frontal lamina with a few, shallow indentations, (3) coxal plates 1–4 and tergal projections 1–4 with distinct irregular margins, mainly on the right side, (4) pereomeres 5–7 with single/branched lateral digitations, (5) maxilliped palp well-developed and setose, and (6) pleon with lateral plates 1–5 distally rounded and directed laterally. The taxonomic position of this new species is briefly discussed.  


Zootaxa ◽  
2006 ◽  
Vol 1117 (1) ◽  
pp. 1 ◽  
Author(s):  
H. H. TAN ◽  
Z. H. SULAIMAN

Three new species of Gastromyzon from Brunei Darussalam, on the island of Borneo, are described from recent collections and from older museum specimens. Gastromyzon cranbrooki, new species, is superficially similar to G. borneensis, but differs in having a distinct secondary rostrum; body brown with 9–10 grey bars, head dorsum dark brown with thin grey reticulate pattern; and 56–60 scales on lateral line. Gastromyzon aeroides, new species, is similar to G. punctulatus, but differs in having the body uniform brown, dorsum uniform brown; head dorsum with very fine cream reticulate pattern (similar to a cream head with brown spots and blotches); dorsal, caudal and anal fins blue in life; and 47–65 scales in lateral line. Gastromyzon venustus, new species, is similar to G. pariclavis, but differs in having both the body and head dorsum plain brown; dorsal, caudal and anal fins red in life; and 58–63 scales in lateral line.


Zootaxa ◽  
2011 ◽  
Vol 2834 (1) ◽  
pp. 17 ◽  
Author(s):  
OSCAR LISI

The author examined paratypes of Doryphoribius flavus (Iharos, 1966) (formerly Hypsibius (Isohypsibius) flavus Iharos, 1966), and the holotype and paratypes of D. citrinus (Maucci, 1972) (which is considered a junior synonym of D. flavus), furnishing new details, both qualitative and metric, to the description of the species, and providing a discussion on the synonymy. Specimens, previously attributed to these species, from Amazonia, South Africa, and Bali, were also examined and proved to belong to three species new to science: Doryphoribius amazzonicus sp. nov., Doryphoribius bindae sp. nov., and Doryphoribius solidunguis sp. nov. Doryphoribius amazzonicus sp. nov. has a reticular cuticular ornamentation with ridges forming a tubercle at each crossing; legs lacking cuticular ornamentation; buccal tube slightly longer than in D. flavus with respect to the body length, stylet supports inserted on the buccal tube in a slightly more caudal position; peribuccal papulae present; teeth and ridges appear to be absent in the buccal cavity; pharyngeal bulb with apophyses and two macroplacoids; claws slightly shorter and stouter than in D. flavus. Accessory points and smooth lunules present. No other cuticular thickening present on the legs. Doryphoribius bindae sp. nov. has a delicate reticular cuticular ornamentation formed by narrow ridges with a tiny tubercle at each crossing; a fine reticular design present on the legs; peribuccal papulae present, buccal armature with only one dorsal tooth near the medial margin of each stylet sheath. Pharyngeal bulb with apophyses and two macroplacoids. Accessory points and small lunules present. No other cuticular thickening present on the legs. Doryphoribius solidunguis sp. nov. has a very obvious reticular cuticular ornamentation with an irregular shape and size mesh (usually large) delimited by thick, sometimes protruding ridges that may form tubercles at crossings; cuticle of the legs smooth; peribuccal papulae present and two pairs of dorsal teeth lying along the anterior margins of the stylets sheaths. Pharyngeal bulb with apophyses and two macroplacoids. The claws are large and stout with very small accessory points; lunules present, those of the inner claws more evident than in similar species; a cuticular bar is present on the first three pairs of legs. Doryphoribius flavus was considered widespread, but this work exposing cryptic species indicates that the geographic distribution is more restricted.


Zootaxa ◽  
2018 ◽  
Vol 4418 (2) ◽  
pp. 136 ◽  
Author(s):  
BRIAN V TIMMS

Recent collections from the remote Kimberley in Western Australia, have added three species to the known fauna of gnammas, Limnadopsis multilineata Timms, 2009 and two new species described herein, Eulimnadia kimberleyensis sp. nov. and Ozestheria pellucida sp. nov.. A further gnamma icon, Paralimnadia laharum sp. nov. is added from the Grampians in western Victoria. The numerous records of clam shrimps from Australian gnammas are examined.


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