On a new species of the family Callionymidae (Pisces,Perciformes, Callionymoidei), Callionymus stigmatopareius sp. nov. from Mozambique

Summary

Callionymus stigmatopareius sp. nov. is described and compared with allied species of the genus Callionymus. Features which distinguish it from similar species are as follows: 1. 1the combination of 8 rays in the 2nd dorsal fin and 7 rays in the anal fin with preopercular spine formula ;

2. 2unusually long anal fin rays;

3. 3colour markings.

     

Arphthicarus andamanensis sp. nov., a new species of ptyctimous mite (Acari,Oribatida) from the Andamans

A new species, Arphthicarus andamanensis sp. nov., from the Andaman Islands is described and illustrated. Some known species of ptyctimous mites from the northern and southern islands of the Andamans and the Eastern Ghats of continental India are noted.     

Review of the southern temperate fish family Aplodactylidae (Pisces: Perciformes)

The southern temperate perciform fish family Aplodactylidae is reviewed. The monotypic genus Crinodus is relegated to the synonymy of the genus Aplodactylus, which is recognized as containing five species: A. arctidens Richardson from New Zealand and Australia (Victoria, South Australia and Tasmania); A. lophodon (Günther) restricted to south-eastern Australia (New South Wales and Victoria); A. westralis Russell restricted to south Western Australia; A. etheridgii (Ogilby) from the south-west Pacific (north-eastern New Zealand, Kermadec Islands, Lord Howe Island and Norfolk Island); and A. punctatus Valenciennes from the west coast of South America (Peru and Chile). A key to the species is given.     

Two new nematodes,Pseudelzalia longiseta gen. nov., sp. nov. and Paramonohystera sinica sp. nov. (Monhysterida: Xyalidae), from sediment in the East China Sea

Pseudelzalia longiseta gen. nov, sp. nov. and Paramonohystera sinica sp. nov. from subtidal sediment in the East China Sea are described. Pseudelzalia is characterized by 6 labial papillae and 10 cephalic setae, cylindrical buccal cavity, elongate (>2 anal body diameter) spicules, and conico-cylindrical tail devoid of terminal setae. It differs from Elzalia by the absence of terminal setae. Pseudelzalia longiseta sp. nov. is 647–853 μm long, has 7–8 μm long cervical setae, 11–14 μm long caudal setae, 25–41 μm long spicules about 2.1–2.7 anal diameter, and pointed tail-tip. Paramonohystera sinica possesses 12 cephalic setae, a character found in four congeners: Paramonohystera buetschlii (Bresslau and Schuurmans Stekhoven in Schuurmans Stekhoven, 1935, Paramonohystera pilosa Boucher, 1971, Paramonohystera concinna Lorenzen, 1977 and Paramonohystera halerba Fadeeva and Belogurov, 1987. It differs from P. buetschlii by shorter body (933–1023 μm versus 2000–2200 μm); from P. pilosa by the much shorter spicules (79–88 μm versus 167 μm) and narrower head (13–16 µm versus 32 µm); from P.concinna by smooth cephalic setae (versus segmented); and from P. halerba by the absence of two rows of setae on the ventral side of the tail (versus present). Based on the evaluation of nominal species, we recognize 14 valid species and provide an emended diagnosis and a tabular key for Paramonohystera.

http://www.zoobank.org/urn:lsid:zoobank.org:pub:474B8F17-AED7-4078-8176-DFC499B78526     

Extremalona timmsi gen. nov., sp. nov., a new cladoceran (Cladocera: Anomopoda: Chydoridae) from an acid saline lake in southwest Western Australia

A new species of Cladocera, Extremalona timmsi gen. nov., sp. nov., was found in acid saline lakes in the southwest of Western Australia. Extremalona gen. nov. belongs to the Coronatella-branch of Aloninae, but differs from all members of the group by the oval body with small high-set head (tip of rostrum located at half-height of the body), the exopodite III with uniform, well-developed setae 4–6 and male antennule with six lateral and nine terminal aesthetascs, and by numerous other characters. In our opinion, Extremalona gen. nov. is one of the ancestral genera of the Coronatella-branch of Aloninae, sharing numerous common features with the elegans-group of Alona s.l. Our data confirm a high level of endemism in Australian Chydoridae and Cladocera in general.     

Parashiinoa mackayi gen. nov., sp. nov. (Poecilostomatoida: Shiinoidae), a new parasitic copepod from two Australian species of Pomadasys (Haemulidae)

A new genus, Parashiinoa, is proposed for a new species of parasitic copeepod found attached at the base of the dorsal fins of two species of Australian haemulid fishes, Pomadasys maculatus (Bloch) and P. argenteus (Forsskål). The new species, P. mackayi, is described and illustrated. One species of the genus Shiinoa, S. bakeri Cressey and Cressey, is transferred to the new genus. A redefinition of the family Shiinoidae is provided.     

New species of Streblosoma (Thelepodidae,Annelida) from the Mediterranean Sea: S. pseudocomatus sp. nov., S. nogueirai sp. nov. and S. hutchingsae sp. nov.

ABSTRACT

In the framework of faunistic research conducted along the Apulian coast of Italy, three new species of thelepodid polychaetes are reported: Streblosoma pseudocomatus sp. nov., S. nogueirai sp. nov. and S. hutchingsae sp. nov. The taxonomic position of S. comatus is clarified and emended as Thelepus comatus. The described species are characterised by their C-shaped arrangement of uncini. The species are compared with their closest congeners and a synoptic table is provided for the species of Streblosma with C-shaped tori.

urn:lsid:zoobank.org:pub:7AE78305-6949-46F3-B61A-D93792038F7A

urn:lsid:zoobank.org:act:03051972-0F29-4256-8804-93DB75081777

urn:lsid:zoobank.org:act:9BCE7F71-81DD-43FE-8C95-DD7A572B9973

urn:lsid:zoobank.org:act:BEC2919B-4CAD-4314-B829-79E02C5D53A3     

Agathoxylon lemonii sp. nov., from the Dakota Formation, Utah

Petrified wood specimens from the Dakota Formation of Utah are here described as Agathoxylon lemonii . This new species is characterized by having distinct growth rings, araucarian tracheary pitting, resin plates or plugs in its tracheids, abundant axial parenchyma, low uniseriate rays and 1–4 small, slightly bordered pits with circular to oval included apertures per crossfield. This is the first report of petrified wood from the Dakota Formation of the western United States and the first record of Agathoxylon from North America.     

Paratimmus provulvatus gen. nov., sp. nov. (Dorylaimida: Mydonomidae) from natural forests in Arunachal Pradesh,India

A new genus of soil-inhabiting nematode belonging to the family Mydonomidae Thorne, 1964 Thorne, G. 1964. Nematodes of Puerto Rico: Belondiroidea, new superfamily, Leptonchidae Thorne, 1934 and Belonenchidae new family (Nematoda, Adenophorea, Dorylaimida). University Puerto Rico Agriculture Experiment Station Technical paper No. 39, : 51 [Google Scholar] is described and illustrated from natural forests of Arunachal Pradesh, India. Paratimmus provulvatus gen. nov., sp .nov. is characterized by having a continuous lip region; tiny, asymmetrical odontostyle; single distinctly sclerotized guiding ring; simple, rod-like odontophore; a thin sheath (not spiral) around basal pharyngeal bulb; elongate conoid cardia; mono-opisthodelphic female genital system; transverse vulva; long filiform tail in both sexes and males with dorylaimoid spicules and three to four spaced ventromedian supplements.     

Terrapotamon gen. nov., a new genus of freshwater crabs from Malaysia and Thailand,with description of a new species,Terrapotamon aipooae sp. nov. (Crustacea: Decapoda: Brachyura: Potamidae)

A new genus, Terrapotamon gen. nov., is established to accomodate two species of freshwater crabs, Potamon abbotti Rathbun, 1898 from southern Thailand, and a new species, Terrapotamon aipooae sp. nov. from West Malaysia. Members of this genus are characterized by their inflated carapaces, very acutely triangular external orbital angles, and structure of their first male gonopods.