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Kapiti, New Zealand

A new species of Heterotanoides is described from Waiheke Island, in the warm Aupourian zoogeographic province of New Zealand, and its relationships to other members of the genus are discussed. New characters for Heterotanoides, such as plumose epimeral setae, cap-like antennule segment, and four-spined maxilliped endites are presented, and their phylogenetic relevance examined. Based on phylogenetic analyses of Heterotanoides, leptocheliids, pseudozeuxids, teleotanaids, and some nototanaids, a new family is established for the genus: Heterotanoididae. Copyright © 2012 · Magnolia Press. Source

A new genus and species, Stachyops sebparri, is described from the eulittoral of Cook Strait, New Zealand and is the first record of a nototanaid from one of the main islands. A very small species, it has several morphological characters that are shared with some species of the Tanaissuidae, such as a narrow mandibular molar and fewer pereopods 4-6 carpal spines, yet retains some apparent plesiomorphic features more typical of the Nototanaidae or other 'basal' paratanaoideans. A phylogenetic analysis does group it with the Nototanaidae sensu Bird and Larsen, but more phylogenetic studies of these two families are needed to clarify their composition, relationships, and validity. Copyright © 2012 · Magnolia Press. Source

The tanaidacean fauna of the Iceland-Faroes-Shetlands sector of the North-east Atlantic was studied using material from the BIOFAR, BIOICE and AFEN surveys. Seven agathotanaid species were recorded from the genera Agathotanais, Paragathotanais and Paranarthrura, a total comparable to those from a similar bathymetric range in the Rockall-Biscay area and the Gulf of Mexico. A new species of Paragathotanais is described. All records of this family were from benthic stations with a mean bottom temperature of =2°C, with none from the 'cold-water' region north of the Iceland-Shetlands ridge complex. An analysis of North-east Atlantic agathotanaid sex-ratios shows that these are not highly skewed in favour of females and are consistent with the status of the males as relatively non-dimorphic and long-lived entities. © 2010 · Magnolia Press. Source

Larsen K.,CIIMAR - Interdisciplinary Center of Marine and Environmental | Bird G.,8 Shotover Grove | Ota M.,Rua Hinzte Ribeiro 543
Zootaxa | Year: 2013

Specimens collected during the ANDEEP I and II expeditions revealed a number of new species of tanaidacean from the family Agathotanaidae. One new species of Metagathotanais (M. furcilla), two of Paragathotanais (P. diunguisus, P. triunguisus) and one of Paranarthrura, (P. coimbrai) are described in this study. Metagathotanais furcilla can be separated from all other species by the incomplete fusion of the pleonites and the presence of dorsodistal spines of the propodi of pereopods 4-6. Paragathotanais diunguisus can be separated from all other species by the pereopod propodi with numerous distal spines and the numbers of spiniform setae on the pereopod 4-6 dactylus. Paragathotanais triunguisus can be separated from all other species by the numbers of spiniform setae on the pereopod 4-6 dactyli and the lack of maxilliped endite setae. Paranarthrura coimbrai can be separated from most other species on the spines on the propodi and ungues of pereopods 4-6. A key is given to the agathotanaids in the Antarctic/Subantarctic sector. This brings the number of agathotanaid species recorded from the Subantarctic and Antarctic sectors of the Atlantic to nine. Copyright © 2013 Magnolia Press. Source

Bird G.J.,8 Shotover Grove | Bamber R.N.,ARTOO Marine Biology Consultants LLP
Zootaxa | Year: 2013

Three new genera, Acallocheirus, Aparatanais, and Penteparatanais, and seven new species of the paratanaid subfamily Paratanaidinae are described from New Zealand. New records of three previously known species Atemtanais taikaha, Paratanais paraoa, and P. tara, are also given. Paratanais denticulatus, P. intermedius, P. malignus, P. spinanotandus, and P. vicentetis are transferred to Aparatanais. A key is given to all paratanaidin genera and the NZ Paratanais species. In NZ waters, paratanaids are now known from the littoral zone to 908 m in the bathyal regions of the Chatham Rise and Hikurangi Margin, several of the offshore species being recorded in bryozoan mats. All but one appear to be endemic but may have sibling species elsewhere, particularly in the Southern Hemisphere. Supplementary notes are given on two Australian species P. maleficus and P. perturbatius that clarify their description and diagnostic characters. Copyright © 2013 Magnolia Press. Source

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