Tannereason5621

Adults and larvae of the family Philopotamidae from Zhejiang Province, China, were examined and mtCOI gene sequences were extracted and analyzed, males and larvae of 3 species were successfully associated. The larvae of Chimarra sadayu Malicky 1993, Dolophilodes bellatula Sun Malicky 2002, Wormaldia unispina Sun 1998 are described in detail and their diagnostic photographs and illustrations are presented. Diagnostic characters for genera and species are discussed.Marine tardigrades were sampled at three sites on Mexico's Caribbean coast. Eleven taxa were collected, one of which is described as a new species. Styraconyx robertoi sp. nov. is characterized by asymmetric primary clavae; dorsal cuticle with a grid-like sculpture; claws with reduced accessory hooks; females with peduncles on only two digits (the external) of legs I-IV; males with peduncles only on the external digits of legs I-III and peduncles on all four digits of leg IV. Styraconyx robertoi sp. nov. is most similar to S. craticuliformis Chang Rho, 1998 and S. kristenseni Renaud-Mornant, 1981 by having asymmetric primary clavae but differs from S. craticuliformis mainly by the number of peduncles and from S. kristenseni mainly by the presence of a grid-like dorsal sculpture. Additionally, a comparison of material collected from the same region, but reported previously only as genus level records, was carried out in order to produce a refined list of the known Mexican marine tardigrade species.Atopocrinus ojii new species, is described from deep water off Japan. The genus was previously monotypic and known only from the holotype of A. sibogae A. H. Clark, 1912, from Indonesia. Examination of all known specimens of Atopocrinus has added the following genus-level characters cirrus sockets arising as tubes along the adoral surface of the centrodorsal, and faint, superficial, suture-like lines that cross the interradial ridges aboral to the centrodorsal/basal suture. Hippo inhibitor The new species exhibits additional novel characters, some of which may be unique (e.g., deep pores around cirrus sockets) and others that may be shared with the incomplete holotype of A. sibogae (e.g., hollow pinnulars). Confusion about the structure of basal ossicles versus basal rays in Atopocrinus and other extant feather stars prompted inclusion of a review of the structure and development of these skeletal components. Video of a live specimen attributed to A. sibogae revealed that the distal half of the arms lack pinnules. The new species also shares several characters in common with Jurassic Spinimetra chesnieri Hess Thuy, 2017.Schindleria (Giltay (1934), Schindler's fishes (or infantfishes), is a genus of small ( less then 22 mm) paedomorphic species of the family Gobiidae which mature extremely fast. These fishes occur from the eastern Pacific (Cocos Islands off Costa Rica, seamounts Nazca and Sala y Gómez) to the southwestern Indian Ocean (southeast Africa). Nevertheless, there is a large gap in the distributional area between the Philippines (western Pacific) and India/Sri Lanka (Central Indian Ocean) which spans nearly 5000 km. We present the first comprehensive documentation of published records of Schindleria together with samples collected during the Dana-Expedition, between 1928 and 1930 at 44 stations from Polynesia to southeast Africa, with 8 records from the western Pacific to the Central Indian Ocean. We present three first records, 18 new records and the southernmost record for the Indian Ocean. Although Schindler's fishes were generally documented from or close to islands and reefs, we present 23 offshore records (at least 30 km distant to a shore or reef) and 27 deep-water records (at least 65 m deep). Records between 320 and 360 km offshore are the most extreme offshore records of Schindleria ever documented. The records from about 500- and 1000-m depths are the deepest ever documented for Schindler's fishes.Parapachymorpha is one of eight genera within the tribe Medaurini of subfamily Clitumninae (Phasmatidae). It was established by Brunner von Wattenwyl (1893), with the type species Parapachymorpha nigra by subsequent designation of Kirby (1904), from Myanmar. Species of this genus are widely distributed in oriental tropics (Laos, China, Thailand, Myanmar, Vietnam and Cambodia), with only 11 known species in the world (Brock et al. 2018, Ho 2017). Species of the genus Parapachymorpha can be recognized by following characters (Brunner von Wattenwyl 1893;1907, Henmemann Conle 2008, Ho 2017) 1) body robust in female and slender in male with long leg in relation to the length; 2) body surface of female granulose or spinose; 3) mesonotum of female more and less expanded posteriorly; 4) abdominal tergites lacking expanded prostero-lateral angles in both sexes; 5) laminal supraanalis undeveloped in female; 6) semi-tergite of male irregularly rectangular, with an additional finger--like ventro-apical appendix on the lower margin and reduced or absent; 7) egg capsule oval to oblong and covered with a raised net-like structure in lateral view; 8) micropylar plate oval; 9) operculum concave or convex. In the present study, we describe additional species, Parapachymorpha minuta sp. nov. from Laos, with photographs of both sexes of adults and egg.A freshwater palaemonid shrimp from the São Francisco river basin in Brazil has been found to be a new species and is herein nominated as Macrobrachium veredensis sp. nov. It is morphologically similar to M. brasiliense (Heller, 1862), which is found in many rivers of South America. However, M. veredensis sp. nov. has a smooth carapace and few spinules on the second pereopods, while M. brasiliense has the anterolateral surface of the carapace with small spinules and the palm of the second pereopods with spines, spinules and setae. Despite their similar morphology with these subtle differences, the remarkable genetic different evidenced in DNA analysis. Molecular analyses were based on 43 sequences with 528 base pairs (bp) for 16S rDNA, and 16 new sequences with 581bp, without pseudogenes, for COI mtDNA. The nucleotide divergence between M. veredensis sp. nov. and M. brasiliense (7.0-8.5% for 16S and 11.8-12.5% for COI.), the phylogenetic topology and the haplotype network configuration and it is endemism to a region of the São Francisco river basin support the recognition of a new taxon.