A new species of Alvinocaris (Crustacea: Decapoda: Alvinocarididae) and new records of alvinocaridids from hydrothermal vents north of New Zealand

Zootaxa ◽  
2004 ◽  
Vol 444 (1) ◽  
pp. 1 ◽  
Author(s):  
W. RICHARD WEBBER

Alvinocaris niwa n. sp. is described from hydrothermal vents at the Brothers Caldera and Rumble V Seamount on the southern Kermadec Ridge, midway between the Kermadec Islands and Bay of Plenty, New Zealand. Four hundred specimens of Alvinocaris longirostris Kikuchi & Ohta, 1995, described from Japan, are recorded at the Brothers. The presence of a possible third Alvinocaris at Rumble V and one or two species of Chorocaris at Brothers are also reported. Eighty-eight specimens of A. niwa and 41 of A. longirostris were measured and examined to assess morphological variation. Morphological characters used to distinguish alvinocaridids are shown to be highly variable. Pairwise correlations with carapace length indicate that numbers of teeth, spines and setae are generally not related to shrimp size. Descriptions based on small numbers of specimens are thus questionable. The new species is characterised by: short rostrum; paired sternal spines on abdominal somites I III; long stylocerite and robust distolateral spine on the antennular proximal segment, with a subterminal spine; two ventral spines on antennal basal segment; row of spines on distal segment of maxilliped III; and two rows of spines on flexor surface of P3 P5 dactyls. It is the shallowest alvinocaridid yet discovered and also inhabits the greatest depth range, at over 700 m.

Phytotaxa ◽  
2019 ◽  
Vol 424 (5) ◽  
pp. 267-281 ◽  
Author(s):  
MARLEY FORD ◽  
DAN J. BLANCHON ◽  
ANDREW VEALE ◽  
ERIN J. DOYLE ◽  
JEREMY R. ROLFE ◽  
...  

A new species, Strigula oleistrata, segregated from S. novae-zelandiae is described. The new species is widely sympatric with Strigula novae-zelandiae from which it is separated by a range of morphological characters and also by its nrDNA ITS sequence. As a result of this segregation, a new circumscription of S. novae-zelandiae is also provided. Comments on the ecology and conservation status of both species, and a revised key to the foliicolous Strigula species of New Zealand are provided.


2011 ◽  
Vol 92 (5) ◽  
pp. 1043-1055 ◽  
Author(s):  
Katerina Sevastou ◽  
Paulo Henrique Costa Corgosinho ◽  
Pedro Martínez Arbizu

A new species of the genus Dahmsopottekina is described from the Mediterranean Sea. Dahmsopottekina guilvardi sp. nov. was collected from abyssal habitats at a depth range of 2340–2850 m. Like its congeners, the new species has a vermiform habitus, a highly transformed P1 in both sexes and a plough-like rostrum in the female. Dahmsopottekina guilvardi sp. nov. can be distinguished from its congeneric species by the combination of a fused basis and endopodite in P1 of both sexes and the absence of an endopodite in P2–P4 of the female. Dahmsopottekina guilvardi sp. nov. is the second record of a harpacticoid species after its congener D. peruana in which the basis and endopodite of a leg other than the P5, namely the P1, are fused. Furthermore, the new species is the only one among Dahmsopottekina species with a 1-segmented P1 exopodite in the male. Similar to its congeners, D. guilvardi sp. nov. is strongly sexually dimorphic. This is evident through the morphology of most of the cephalic appendages and the reduction of P2–P6 in the female. The results of the present study support the observation that Dahmsopottekina species are sparsely distributed and highly endemic. Nevertheless, our results do not agree with the statement of considerably larger females as the length variability between females is greater than between the two sexes. Despite the morphological characters of the species commensurate with a burrowing mode of life, its presence in sediment traps suggests that D. guilvardi sp. nov. is an active ‘swimmer’.


Zootaxa ◽  
2008 ◽  
Vol 1825 (1) ◽  
pp. 59 ◽  
Author(s):  
DENIS KEITH ◽  
MARCO ULIANA

A new species of Glaphyridae is described: Pygopleurus rapuzzii n. sp. from northwestern Iran. The new species is sympatric with and shares many character states with P. anahitae Mitter, from which it can be differentiated by the shape of genital parts and by morphological characters of head, pronotum, and elytra. Both species are illustrated for the first time. New records from Iran are given for other species of the genus Pygopleurus Motschulsky.


Zootaxa ◽  
2016 ◽  
Vol 4154 (1) ◽  
pp. 1 ◽  
Author(s):  
KRISTIAN P. SAETHER ◽  
SHA JINGENG ◽  
CRISPIN T. S. LITTLE ◽  
KATHLEEN A. CAMPBELL

2013 ◽  
Vol 58 (2) ◽  
pp. 437-447 ◽  
Author(s):  
Matt von Konrat ◽  
Peter de Lange ◽  
Juan Larraín ◽  
Jörn Hentschel ◽  
Benjamin Carter ◽  
...  

Abstract Frullania is a large and taxonomically complex genus. Here a new Frullania, F. toropuku von Konrat, de Lange & Larraín, sp. nov. is described from New Zealand. Frullania toropuku is placed in F. subg. Microfrullania. The new species is readily recognised by a combination of morphological characters associated with branching, the perianth, sexuality, and sporophyte, which distinguish it from all other New Zealand and regional species of Frullania. However, morphologically F. toropuku most closely resembles the widespread F. rostrata, which might well be regarded as a Southern Hemisphere equivalent of the Holarctic F. tamarisci species-complex in terms of its cryptic diversity. A combination of morphological characters associated with branching, the perianth, sexuality, and sporophyte distinguish F. toropuku from all other New Zealand and regional species of Frullania. A comparison is made between F. toropuku and morphologically allied species of botanical regions outside the New Zealand region and an artificial key is provided. In a prior investigation, maximum parsimony and maximum likelihood analyses of nuclear ribosomal ITS2 and plastidic trnL-trnF sequences from purported related species confirms its independent taxonomic status and corroborates its placement within F. subg. Microfrullania. The ongoing studies of Frullania species-complexes reveal the urgent need for more species-level phylogenies with extensive population sampling to approximate the actual diversity of Frullania, and to elucidate speciation processes and distribution range formation.


Zootaxa ◽  
2019 ◽  
Vol 4660 (1) ◽  
pp. 1-94
Author(s):  
JAIRO A. MORENO-GONZÁLEZ ◽  
RANULFO GONZÁLEZ O. ◽  
EDUARDO FLÓREZ D.

We present a taxonomic revision of the Colombian Tityus (Archaeotityus) species based on morphological and morphometric evidence. We examined more than 385 specimens and evaluated new and previously used qualitative and quantitative morphological characters. We redescribe the Colombian species and present morphological characters for both sexes and an emended diagnosis for the subgenus Tityus (Archaeotityus). We describe a new species Tityus guane sp. nov. from Santander department, Colombia, Tityus betschi Lourenço 1992 is synonymized with Tityus parvulus Kraepelin, 1914, and Tityus wayuu Rojas-Runjaic & Armas, 2007 is synonymized with Tityus tayrona Lourenço, 1991. We measured 186 specimens and performed a multivariate principal component analysis (PCA) for 34 selected morphometric ratios for each sex. We found that a few morphological ratios support species level distinctions within the Colombian species. We provide updated distributional maps with new records and an identification key for both sexes. Furthermore, we provide an updated checklist for the subgenus and a discussion about the character systems used within Tityus (Archaeotityus). The new morphological characters proposed and the traditional morphometry examined with a PCA are useful for studying Tityus (Archaeotityus) taxonomy.


Zootaxa ◽  
2021 ◽  
Vol 4975 (1) ◽  
pp. 58-80
Author(s):  
DÁVID MURÁNYI ◽  
PETER MANKO ◽  
TIBOR KOVÁCS ◽  
GILLES VINÇON ◽  
MATEJ ŽIAK ◽  
...  

Known Plecoptera data published from Azerbaijan are critically reviewed. New records of 28 species are enumerated on the basis of specimens collected between 2017 and 2019, among them 16 are new for the fauna of Azerbaijan. Nemoura irani Aubert, 1964 is new for the whole Caucasian region, Leuctra sanainica Zhiltzova, 1960 and Plesioperla sakartvella (Zhiltzova, 1956) are new for the Greater Caucasus. The female and larva of an unknown Protonemura Kempny, 1898 species, collected in the Talysh Mts, are illustrated and described under temporary name Protonemura sp. AZE-1. A new species of Protonemura, collected both in the Azerbaijan and Georgian areas of the Greater Caucasus, will be formally described in a further paper. A male Protonemura specimen was found to be infected by mermithid worms, morphological lesions are illustrated and commented; this is the second documented case of mermithid infection in stoneflies. Subspecies level identity of Azerbaijani populations of Leuctra fusca (Linnaeus, 1758) proved to be problematic, morphological characters of the specimens are illustrated. Synonymy of Isoperla caucasica Balinsky, 1950 and I. pulchra Balinsky, 1950 under I. bithynica (Kempny, 1908) is disputed, the two names are combined under I. grammatica (Poda, 1761) sensu lato. 


2011 ◽  
Vol 24 (1) ◽  
pp. 19 ◽  
Author(s):  
Elizabeth Maciunas ◽  
John G. Conran ◽  
Jennifer M. Bannister ◽  
Rosemary Paull ◽  
Daphne E. Lee

The discovery of Early Miocene Asteliaceae fossils at Foulden Maar in southern New Zealand provided a good opportunity to assess the usefulness of cuticular information for identifying members in this family. On the basis of cuticular morphology, the Foulden specimens are assigned to Astelia Banks & Sol. ex R.Br. and described as a new species, A. antiquua Maciunas et al. They are shown to have some affinities with A. alpina, A. linearis and also an apparently unnamed Astelia taxon from southern Westland, New Zealand. Although cuticular characteristics alone were of help in identifying individual species, the addition of gross morphological characters facilitated the differentiation between Asteliaceae genera, greatly improving the phylogenetic placement of the fossil. On the basis of analysis of the combined data, Astelia and Collospermum formed a clade and were sister to a Milligania and Neoastelia clade, albeit with most branches showing little overall bootstrap support.


Zootaxa ◽  
2009 ◽  
Vol 2111 (1) ◽  
pp. 1-66 ◽  
Author(s):  
COLIN L. McLAY

Seven species and two families previously unknown from New Zealand are recorded: Dynomene pilumnoides Alcock, 1900, Metadynomene tanensis (Yokoya, 1933) (Dynomenidae new to New Zealand); Pseudopalicus undulatus Castro, 2000 (Palicidae); Mursia microspina Davie & Short, 1989 (Calappidae new to New Zealand); Ovalipes elongatus Stephenson & Rees, 1968, Thalamita danae Stimpson, 1858, (Portunidae); Percnon planissimum (Herbst, 1804) (Plagusiidae); Ontogenetic morphological changes in Nectocarcinus antarcticus (Portunidae) are described. The southern limit for Pseudopalicus undulatus is extended from Fiji to New Zealand and the depth limit from 410 m to more than 560 m. A checklist of Brachyura recorded from the Kermadec Is is also updated. The genus Dromia Weber, 1795 (Dromiidae) is revised and restricted to the Atlantic Ocean (6 species) and Metadromia gen. nov. and Tumidodromia gen. nov., are erected for Indo-West Pacific species previously included in Dromia sensu lato. A new species of Rochinia (Epialtidae) is described from the Rumble V seamount. The stridulatory ridges on the chelipeds of Ocypode (Ocypodidae), important for identification, are shown to be sexually dimorphic: males have more striae than females. A single specimen of O. pallidula is reported from the Leigh Marine Reserve where it may have been accidentally released.


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