查看更多>>摘要：A review of high-latitude Goniasteridae south of 50°S is presented, including a key to species, figures and taxonomic descriptions of all species with a brief taxonomic summary for all genera. Nineteen species in 11 genera are reviewed. Era-tosasterjenae nov. gen and sp., Chitonaster trangae nov. sp., and Pillsburiaster calvus nov. sp. are described. Several taxa, including Chitonaster, have not been reviewed since their initial description and revision of the group has clarified taxonomic boundaries between species. The genus Pentoplia is a junior synonym of Chitonaster. Rarely encountered species, synonyms, and range extensions are reported for multiple species.
Moraza, Maria L.Lindquist, Evert E. [AuthorE-mail: lindquistm@primus.ca].
25页
查看更多>>摘要：The genus Fungiseius gen. nov. is described, based on adults of two newly described species. These rather short-legged mites, with their second pair of legs markedly thickened, have been collected only from bracket fungi. The more generalized form, F. clavulisetis gen. et sp. nov., is based on female specimens from Chiapas Province, southern Mexico. The more derivative form, F. armatus gen. et sp. nov., is based on females and males from several samples of bracket fungi in lowland tropical rainforest of Costa Rica, where they coexist with a remarkable variety of other blattisociine mites. Notable morphological attributes peculiar to adults of this genus include the dorsal shield having a delineated lateral rim that bears a row of setae of the lateral or marginal series, legs II greatly thickened, with enlarged, claw-like setae on the dorsolateral face of the tarsus, and deep furrows postgenitally on females and postanally on males and females. Comparisons are made with fungus-inhabiting mites of the genus Hoploseius, whose adults also have the second pair of legs thickened. A revised key to the world genera and subgenera of the subfamily Blattisociinae is presented; the genus Orthadenella Athias-Henriot is excluded, and placed in the ascoid family Melicharidae. The subgenera Borinquolaelaps Fox, Crinidens Karg, and Cuspiacus Christian & Karg, sensu Christian & Karg 2006 are treated as new synonyms of the subgenus Lasioseius Berlese.
查看更多>>摘要：Decapod larvae assemblages were studied in the tropical estuaries off southeastern Brazil (Piraque-acu and Piraque-mirim rivers estuaries). A total of 32 taxa of decapod larvae were recorded. Brachyuran larvae dominated in Piraque-acu estuary, with 62% of the relative abundance, and 49% in Piraque-mirim estuary. Mean larvae concentrations ranged from 17.2 m(-3) at Piraque-mirim (August 2003) to 221.1 m(-3) at Piraque-acu (April 2003). The assemblage of larvae in both estuaries was diverse, especially at Piraque-mirim, which showed higher ecological stability. The high spatial heterogeneity of the Piraque-acu and Piraque-mirim estuarine system resulted in the division of the assemblage into two well-defined groups (truly estuarine and euryhaline). Salinity spatial gradient was a key factor in the structure and distribution of larvae.
David, PatrickCuong The Pham [AuthorE-mail: cuong03091983@yahoo.com]Truong Quang Nguyen [Author...
14页
查看更多>>摘要：A new species of the snake genus Opisthotropis Gunther, 1872, Opisthotropis cucae sp. nov., is described from Kon Tum Plateau in central Vietnam. It is distinguished from any other Opisthotropis species by the combination of the following characters: (1) dorsal scales entirely smooth, in 23-19-19 rows; (2) 191 ventrals; (3) 1 loreal, in contact with internasal; (4) 7 supralabials, 5(th) entering orbit; (4) dorsum uniformly greyish-brown without bands or crossbars, with an irregular separation between dark dorsum and venter, greyish-yellow speckled with dark grey. An extended comparison with other species of the genus Opisthotropis species is provided together with a key to the known species of the genus. Opisthotropis cucae sp. nov. is the third new mountain stream snake described from Vietnam in the past decade. The grammatical gender of the genus Opisthotropis is discussed; this genus is feminine.
DAVID A. EBERTLEONARD J.V. COMPAGNOJONATHAN H. WALSH
11页
查看更多>>摘要：A new species of angel shark, Squatina caillieti sp. nov., is described from a single specimen collected in deepwater off Luzon in the Philippines. The new species is closest to S. formosa and S. nebulosa, but differs from its congeners based on the following characters: unfringed barbels with rod-like tips, upper lip arch semi-oval in shape, large papillae present on the inside posterior margin of the spiracles, a greater interspiracle space than interorbital space, pelvic fm-tips which reach the first dorsal origin, a short pelvic fin base, short pelvic inner margin very short, and a short pelvic posterior margin; pelvic girdle span more than 1.4 times greater than head length; dorsal fms angular, greater interdorsal space than dorsal caudal space; caudal fm Iqbed, very short upper postventral caudal margin. The new species is the only Squatina confirmed as occurring in the Philippines. We also comment on the biogeography of westem North Pacific Squatina and provide a revised regional key to thisgroup.
Ji, Hwan-SungKim, Jin-Koo [Author, Reprint AuthorE-mail: taengko@hanmail.net].
12页
查看更多>>摘要：A new snake eel, Pisodonophis sangjuensis, is described based on 24 specimens collected from the South Sea of Korea (water depth 5-100 m) between 2005 and 2010. This species is characterized by the following morphological features: fleshy protrusions before and behind the posterior nostril; 1-2 regular rows of conical teeth in both jaws, prevomer and vomer are slightly separated from each other; the origin of the dorsal fin above the middle of the pectoral fin; and the pectoral fin is rounded and not elongated. Pisodonophis sangjuensis is most similar to P. cancrivorus in morphology, but the two species differ in their teeth shape (conical in P. sangjuensis vs. granular in P. cancrivorus), and their numbers of vertebrae (143-153 vs. 153-164, respectively). Pisodonophis sangjuensis differs from P. boro in the origin of the dorsal fin (above the middle of the pectoral fin in P. sangjuensis vs. far behind the pectoral fin in P. boro), their numbers of vertebrae (143-153 vs. 170-177, respectively), and their teeth shape (conical in P. sangjuensis vs. granular in P. boro). Pisodonophis sangjuensis is also easily distinguishable morphologically from the remaining seven Pisodonophis spp. worldwide. Molecular analysis using mitochondrial DNA 12S rRNA sequences supported that P. sangjuensis is a new species because of the considerable genetic distance from what appears to be its most closely related species, P. cancrivorus (d=0.068).
EVERTON NEI LOPES RODRIGUESMILTON DE S. MENDONQA. JR
9页
查看更多>>摘要：The Araneidae is a speciose family including web-spirming spiders that are very abundant in various terrestrial ecosystems. Sixty-five araneid species from 20 genera were collected during an inventory of riparian forests in southem Brazil. Among thesewere one new species, described here as Mangora piratini sp. nov. Also discovered were the previously unknown males of Alpaida citrina (Keyserling, 1893), A. octolobata Levi, 1988 and Testudinaria lemniscata (Simon, 1895), which are described here for the first time. Metazygia floresta Levi, 1995, Ocrepeira malleri Levi, 1993 and Testudinaria quadripunctata Taczanowski, 1879 are recorded for the first time for Rio Grande do Sul State, Brazil.
NSTL