JUAN MARCOS MIRANDEGASTON AGUILERAMARIA DE LAS MERCEDES AZPELICUETA
20页
查看更多>>摘要：Oligosarcus itau n. sp. is described. This species is the sister group of the remaining analyzed species of Oligosarcus and this relationship is supported by seven morphological synapomorphies: 1) well developed temporal fossa, 2) absence of a dorsalexpansion on the rhinosphenoid, 3) posteroventrally angled articulation between second and third infraorbitals, 4) presence of ectopterygoid teeth on a row, 5) laterally displaced cartilage on the ectopterygoid, 6) presence of bony lamellae bordering laterosensory canal of suprapreopercle, and 7) presence of two pairs of uroneurals. The new species is diagnosed by the following combination of characters: 1) two distinct premaxillary rows of teeth, 2) tricuspidate and pentacuspidate teeth on dentary andposterior premaxillary row, 3) presence of a row of 3-4 tricuspidate to conical ectopterygoid teeth, 4) possession of v-vi,21-23 anal-fin rays, and 5) presence of 41-42 perforated scales on lateral line. Oligosarcus itau n. sp. was previously consideredas an Astyanacinus. Astyanacinus moorii (Boulenger), type species of the genus, is included in the Astyanax clade and Astyanacinus platensis Messner is transferred to Oligosarcus.
查看更多>>摘要：This work adds three new species to the ca. 200 currently known from New Zealand. In Acanthodrilidae is Maoridrilus felix and in Octochaetidae are Deinodrilus gorgon and Octochaetus kenleei. All three are endemics that often have restricted ranges; however, little is yet known of their distribution, ecology nor conservation status. DNA barcoding was conducted, which is the first time that New Zealand endemic holotypes have been so characterized. The barcoding region COI (cytochrome c oxidase subunit1) as well as the 16S rDNA region were sequenced using tissue from the holotype specimen to provide indisputable uniqueness of the species. These DNA sequences are publically available on GenBank to allow accurate cross checking to verify the identification of other specimens or even to identify specimens on the basis of their DNA sequences alone. Based on their 16S rDNA sequences, the position of the three newly described species in the phy-logeny of New Zealand earthworms was discussed. The description of new species using this approach is encouraged, to provide a user-friendly identification tool for ecologists studying diverse endemic faunas of poorly known earthworm species.
SRECKO B. CURCICBOJAN M. MITICLUKA R. LUCICSLOBODAN E. MAKAROV...
12页
查看更多>>摘要：A new genus is established for a new diplopod species from Croatia: Massarilatzelia dugopoljica n. gen, n. sp., which is described, thoroughly illustrated, and diagnosed. Two subspecies of the genus Heterolatzelia Verhoeff, 1897, H. nivalis rupivaga Verhoeff, 1899, and H. nivalis absoloni Attems, 1951 are synonymized and attributed to H. nivalis Verhoeff, 1897. Analysis of postembryonic development showed that in the representatives of the family Heterolatzeliidae the type of anamorphosis is teloanamorphosis. A key to genera and species of the family is presented, as well as an account of their geographic distribution.
查看更多>>摘要：Dimorphostylis elegans Gamo, 1960 and two related new species, D. bathyelegans n. sp. and D. brevicarpus n. sp. are described. Dimorphostylis elegans were collected from the Pacific coasts of Honshu and Shikoku Islands, and the East China Sea, Japan, 74-443 m. As a result, D. latifrons Harada, 1960 from the Izu Peninsula, Japan is declared a junior synonym of D. elegans. Morphological variation of the carapace is discussed. Dimorphostylis bathyelegans, from southern coast of the Honshu Island and the East China Sea, is very similar to D. elegans, but is distinguished from the latter by the long telson and the third peduncle article of antenna 1 with more short setae. Depth of the habitat ranges from 495-918 m, which is the deepest known species in the genus. Dimorphostylis brevicarpus was collected from Kyushu and Nansei Islands, East China Sea, on sandy bottoms, 165-236 m deep. This species also resembles D. elegans, but is distinguished from the latter by (1) short carpus of pereopods 3-5, (2) anterior end of dorsolateral carina with 2 or 3 teeth, and (3) max-illiped 1 with a group of sharp spines on the ventral surface of basis, and (4) carapace covered with numerous small pits, with a tiny seta in each.
查看更多>>摘要：A new verongid sponge (Suberea purpureaflava n. sp.) is described from Dahab, Gulf of Aqaba, in the northern Red Sea. It has a pronounced colour change (a dark red ectosome with whitish pore sieves and a light yellow choanosome in the living specimenchanges to a uniform dark violet in the fixed state) and rather rare dendritic fibres with pith and bark and a diameter of about 110-165 mu m , with the pith occupying 80-90 % of the fibre. Especially the pore sieves were very striking in situ. The new species is compared to all verongid sponges so far recorded from the Red Sea and to all known and accepted Suberea species worldwide. An identification key to all known Suberea species is given. This new species record brings the number of Suberea speciesdescribed to a total of 11.
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