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1.
Christian Lukhaup 《ZooKeys》2015,(502):1-10
A new species, Cherax (Astaconephrops) pulcher
sp. n., from Hoa Creek, close to the village Teminabuan in the southern-central part of the Kepala Burung (Vogelkop) Peninsula, West Papua, Indonesia, is described, figured and compared with the morphologically closest species, Cherax
boesemani Lukhaup & Pekny, 2008. 相似文献
2.
Exocelina
manokwariensis
sp. n. from West Papua is placed into the Exocelina
ekari-group based on the structure of its male genitalia. The new species is described, including its three subspecies, from the mainland of West Papua, Waigeo Island, Batanta and Salawati Islands, and Bomberai peninsula. An identification key to the subspecies as well as data on species distribution are provided. 相似文献
3.
The porcellanid crab Petrolisthes
hastatus Stimpson, 1858, has been traditionally viewed as a highly variable species with a wide distribution in the West Pacific. For more than a century there has been taxonomic confusion of this species with morphologically similar taxa, some of which were synonymized with Stimpson’s taxon. We redefine Petrolisthes
hastatus, resurrect Petrolisthes
inermis as a valid species, discuss the status of Petrolisthes
tenkatei De Man, 1893, and describe a new species as Petrolisthes
elegantissimus from Indonesia. 相似文献
4.
A new species of Cumacea belonging to the genus Lamprops Sars was collected from the East Sea of Korea. This new species resembles Lamprops
comatus Zimmer, Lamprops
carinatus Hart, Lamprops
flavus Harada, Lamprops
pumilio Zimmer, Lamprops
tomalesi Gladfelter, and Lamprops
obfuscatus (Gladfelter) in lacking lateral oblique ridges on the carapace and lateral setae on the telson. The new species, however, is distinguished from its congeners by having a dorsal concave groove and a lateral rounded depressed area on pereonite 2. The new species is fully illustrated and compared with related species. A key to the world Lamprops species lacking lateral ridges on the carapace is also provided. 相似文献
5.
Nine species of terrestrial isopods are reported for the Polynesian island of Rapa Nui (Easter Island) based upon museum materials and recent collections from field sampling. Most of these animals are non-native species, but two are new to science: Styloniscus
manuvaka
sp. n. and Hawaiioscia
rapui
sp. n. Of these, the former is believed to be a Polynesian endemic as it has been recorded from Rapa Iti, Austral Islands, while the latter is identified as a Rapa Nui island endemic. Both of these new species are considered ‘disturbance relicts’ and appear restricted to the cave environment on Rapa Nui. A short key to all the oniscidean species presently recorded from Rapa Nui is provided. We also offered conservation and management recommendations for the two new isopod species. 相似文献
6.
Exosphaeroma
amplicauda (Stimpson, 1857) from the west coast of North America is reviewed and redescribed and revealed to be a group of closely related species. A neotype is designated and the species redescribed based on the neotype and topotypic specimens. Exosphaeroma
amplicauda is known only from the coast of California, at Marin, Sonoma and San Mateo Counties. Exosphaeroma
aphrodita (Boone, 1923), type locality La Jolla, California and previously considered nomen dubium is taken out of synonymy and re-validated. A further three species: Exosphaeroma
paydenae
sp. n., Exosphaeroma
russellhansoni
sp. n., and Exosphaeroma
pentcheffi
sp. n. are described herein. Sphaeroma
octonctum Richardson, 1899 is placed into junior synonymy with Exosphaeroma
amplicauda. A key to the Pacific West Coast Exosphaeroma is provided. 相似文献
7.
A new species of the genus Nihonotrypaea Manning & Tamaki, 1998, Nihonotrypaea
hainanensis
sp. n., collected from the South China Sea, is described and illustrated. It is distinguishable from Nihonotrypaea
harmandi (Bouvier, 1901), Nihonotrypaea
japonica (Ortmann, 1891), Nihonotrypaea
thermophila Lin, Komai & Chan, 2007 and Nihonotrypaea
makarovi Martin, 2013 by having the elongated carpus of the male and female major cheliped. The new species is distinguishable from Nihonotrypaea
petalura (Stimpson, 1860) by the proximolower margin of the carpus of the male major cheliped bearing several small denticles. 相似文献
8.
The taxonomy of Chamaedrilus
glandulosus (Michaelsen, 1888) s. l., most commonly known previously as Cognettia
glandulosa, is revised. A recent molecular systematic study has shown that this taxon harbours two cryptic, but genetically well separated lineages, each warranting species status. In this study these two lineages are scrutinized morphologically, on the basis of Michaelsen’s type material as well as newly collected specimens from Central and Northern Europe. Chamaedrilus
glandulosus s. s. is redescribed and Chamaedrilus
varisetosus
sp. n. is recognized as new to science. The two species are morphologically very similar, differing mainly in size, but seem to prefer different habitats, with Chamaedrilus
glandulosus being a larger aquatic species, and Chamaedrilus
varisetosus being smaller and mainly found in moist to wet soil. 相似文献
9.
The giant freshwater prawn, Macrobrachium
rosenbergii, is a large shrimp extensively used in aquaculture whose grooming behaviors were analyzed in this study. Macrobrachium
rosenbergii exhibits three unique male morphotypes that differ in their behavior, morphology and physiology: small-clawed males (SM), orange-clawed males (OC) and blue-clawed males (BC). The largest and most dominant males, BC males, are predicted to have significantly different grooming behaviors compared to females and the other two male morphotypes. These BC males may be too large and bulky to efficiently groom and may dedicate more time to mating and agonistic interactions than grooming behaviors. Observations were conducted to look at the prevalence of grooming behaviors in the absence and presence of conspecifics and to determine if any differences in grooming behavior exist among the sexes and male morphotypes. Significant differences in the grooming behaviors of all individuals (females and male morphotypes) were found. BC males tended to have the highest grooming time budget (percent of time spent grooming) while SM males had a relatively low grooming time budget. The grooming behaviors of the male morphotypes differed, indicating while these males play distinct, separate roles in the social hierarchy, they also have different grooming priorities. The conditions in which Macrobrachium
rosenbergii are cultured may result in increased body fouling, which may vary, depending on the grooming efficiencies and priorities of these male morphotypes. Overall, grooming behaviors were found to be a secondary behavior which only occurred when primary behaviors such as mating, feeding or fighting were not present. 相似文献
10.
Ashea
megacephala, a new Peruvian genus and species is described. The specimens were collected on mushrooms and mushroom-associated trees. This genus can be readily distinguished from the other genera of the subtribe Gyrophaenina by the large head and the three indistinctly articulated labial palpomeres. A key to the known genera of Gyrophaenina is provided. A habitus photograph and illustrations of diagnostic characters are also presented. 相似文献
11.
A new species of the genus Monoliropus belonging to the family Caprellidae was collected from the Yellow Sea, Korea. The new species differs from Monoliropus
agilis Mayer, 1903, Monoliropus
kazemii Momtazi & Sari, 2013, and Triprotella
amica Arimoto, 1970 as follows: 1) gnathopod 1 subrectangular; 2) pereonites 2–3 with acute triangular processes anterolaterally; 3) mandibular palp, apical article with four simple setae subdistally. The new species is fully illustrated and extensively compared with related species. This is the first record of the genus Monoliropus from Korean waters. A key to Monoliropus species is also given. 相似文献
12.
Atarbolana
makranensis
sp. n. is described from the intertidal zone of Makran along the Iranian coast of the Gulf of Oman. Atarbolana
makranensis
sp. n. can be recognized by the presence of a tuft of long setae on the antennal flagellum of males, elongate pleotelson with 12 robust marginal setae, pleotelson with narrowly rounded apex extending well beyond the uropodal endopod, uropodal endopod half as long as exopod with 14 robust marginal setae, and appendix masculina with an acute apex and extending beyond endopod distal margin. A key is provided for the four known species of Atarbolana Bruce & Javed, 1987. 相似文献
13.
Three new species from Jiangxi, China, are described and illustrated: Stenus
wugongshanus
sp. n., Stenus
mingyueshanus
sp. n., and Stenus
songxiaobini
sp. n. A previously published key to the Chinese species of the Stenus
cirrus group is modified to accommodate the new species. 相似文献
14.
Ko Tomikawa 《ZooKeys》2015,(530):15-36
A new species of anisogammarid amphipod, Jesogammarus (Jesogammarus) ikiensis
sp. n., is described from freshwaters in the Iki Island, Nagasaki Prefecture, Japan, based on results of morphological and molecular analyses. The new species is distinguished from all members of the genus by the combination of small number of setae on dorsal margins of pleonites 1–3, short and small number of setae on posterior margins of peduncular articles of antennae, mandibular article 1 without setae, well developed posterior lobes of accessory lobes of coxal gills on gnathopod 2 and pereopods 3–5, and pectinate setae on palmar margin of female gnathopod 2. A key to all the species of Jesogammarus is provided. 相似文献
15.
The genus Baeoura is represented in Morocco by two species, Baeoura
ebenina Starý, 1981, and Baeoura
staryi
sp. n. The new species is described and illustrated, and a key to the West Palaearctic species of Baeoura is presented. 相似文献
16.
Stephen D. Cairns 《ZooKeys》2016,(562):1-48
The transversely-dividing flabellids consist of five genera (Truncatoflabellum, Placotrochides, Blastotrochus, Placotrochus, and Falcatoflabellum) and 45 species. A dichotomous key is provided for these five genera as well as the species of the genus Truncatoflabellum and Placotrochides, the other three genera being monotypic. A tabular key is also provided for the 38 species of Truncatoflabellum. Two new combinations are suggested (Truncatoflabellum
gambierense and Truncatoflabellum
sphenodeum) and two new species are described (Truncatoflabellum
duncani and Truncatoflabellum
mozambiquensis). All but one species are illustrated and accompanied by their known distribution and a guide to the pertinent literature for the species. New records of 19 of the 45 species are listed. The transversely-dividing flabellids range from the Middle Eocene to the Recent at depths of 2–3010 m, and constitute 60% of the 65 known extant species of transversely-dividing Scleractinia. 相似文献
17.
Pleurocope
iriomotensis
sp. n. and Prethura
tuberculata
sp. n. are described from Iriomote Island, Ryukyu Archipelago, southern Japan. These are the first records of Pleurocope from the Pacific and of Prethura from the Asian Pacific coast. Pleurocope
iriomotensis differs from its congeners in having lateral spine-like processes on pereonite 4 and coxal plates of pereonite 7. Prethura
tuberculata can be distinguished from its single congener in having a lateral short projection of protopod of pleopod 2. 相似文献
18.
The paper deals with Pheretima
multitheca
multitheca Chen, 1938 recorded from Vietnam (non Pheretima
multitheca Chen, 1938 now in Metaphire from Hainan Island). As a result, a new species, Amynthas
erroneous
sp. n., is revealed from materials which were previously misidentified as Pheretima
multitheca
multitheca. The new species is obviously distinguished from other Amynthas species by multiple spermathecal pores lateroventral in intersegments 5/6/7/8/9, and presence of two pairs of crescentic genital markings in xviii. In addition, another new species, Amynthas
nhonmontis
sp. n., is described and easily recognized by multiple spermathecal pores ventral in intersegments 5/6/7/8 and three pairs of genital markings in xvii, xix and xx. 相似文献
19.
Patricia Briones-Fourzán 《ZooKeys》2014,(457):289-311
Coexistence of closely related species may be promoted by niche differentiation or result from interspecific trade-offs in life history and ecological traits that influence relative fitness differences and contribute to competitive inequalities. Although insufficient to prove coexistence, trait comparisons provide a first step to identify functional differences between co-occurring congeneric species in relation to mechanisms of coexistence. Here, a comparative review on life history and ecological traits is presented for two pairs of co-occurring species of spiny lobsters in the genus Panulirus: Panulirus
gracilis and Panulirus
inflatus from the Eastern Central Pacific region, and Panulirus
argus and Panulirus
guttatus from the Caribbean region. Panulirus
gracilis and Panulirus
inflatus have similar larval, postlarval, and adult sizes and a similar diet, but differ in degree of habitat specialization, fecundity, and growth rate. However, little is known on behavioral traits of these two species that may influence their competitive abilities and susceptibility to predators. The more abundant information on Panulirus
argus and Panulirus
guttatus shows that these two species differ more broadly in degree of habitat specialization, larval, postlarval and adult sizes, diet, fecundity, growth rate, degree of sociality, defense mechanisms, susceptibility to predators, and chemical ecology, suggesting a greater degree of niche differentiation between Panulirus
argus and Panulirus
guttatus than between Panulirus
gracilis and Panulirus
inflatus. Whether the substantial niche differentiation and apparent interspecific trade-offs between Panulirus
argus and Panulirus
guttatus relative to Panulirus
gracilis and Panulirus
inflatus reflect an earlier divergence of the former pair of species in the evolution of the genus constitutes an intriguing hypothesis. However, whether or not post-divergence evolution of each species pair occurred in sympatry remains uncertain. 相似文献
20.
Two species of corophiine amphipods from Songkhla Lake, in the lower Gulf of Thailand, are described and illustrated. Chelicorophium
madrasensis (Nayar, 1950), found in the mangrove forest, has not previously been observed in Thai waters. Paracorophium
angsupanichae
sp. n. is characterized by its chelate male gnathopod 2, obtuse palm with subrectangular distomedial elevation, and urosomites 1-3 free. This is the first record of the genus Chelicorophium and Paracorophium in Thai waters. All specimens are deposited in the Princess Maha Chakri Sirindhorn Natural History Museum, Prince of Songkla University, Thailand and the Museum für Naturkunde, Berlin. 相似文献