Polydorid species (Polychaeta: Spionidae) in Japan, with descriptions of morphology, ecology and burrow structure. 2. Non-boring species

2000 ◽  
Vol 80 (3) ◽  
pp. 443-456 ◽  
Author(s):  
Waka Sato-Okoshi
Keyword(s):  
Blood Vessels ◽  
Morphological Variability ◽  
New To Japan ◽  
Behavioural Characteristics ◽  
The Family ◽  
Japanese Waters ◽  
Burrow Structure

A total of 11 polydorid species of the family Spionidae were extracted from non-calcareous substrata from Japan. The polydorids were: one Polydora sp., Polydora cornuta; three Dipolydora spp., Dipolydora quadrilobata, D. cardalia, D. socialis; one Carazziella sp., Carazziella spongilla; one Boccardiella sp., Boccardiella hamata; two Boccardia spp., Boccardia perata, B. proboscidea; three Pseudopolydora spp., Pseudopolydora cf. kempi, P. antennata, P. paucibranchiata. All inhabited mud deposits including mud in crevices of calcareous substrata, sponge and sandstone rocks, and were never found in self-excavated burrows in calcareous substrata. This study attempts to summarize and discuss the taxonomic, morphological, and behavioural characteristics of these non-boring species inhabiting Japanese waters and to compare them with the previously known boring species. The 11 non-boring species belonged to six genera. Thus their taxonomic and morphological variability was higher than those of boring species, which belonged only to three genera. A generic overview suggests that some genera contain many species capable of boring and others contain many species incapable of boring. Branchial blood vessels were thick and conspicuous in non-boring species. Moreover, they showed high crawling activity and a strong, vigorous palp movement. These observations suggest a possible link between boring activity and the morphology and behaviour in polydorids. In addition, Polydora cornuta, Dipolydora quadrilobata, D. cardalia, D. socialis, Boccardia perata and Pseudopolydora cf. kempi are new to Japan.

A taxonomic review of the fish parasitic isopod family Cymothoidae Leach, 1818 (Crustacea: Isopoda: Cymothooidea) of India

Zootaxa ◽  
2019 ◽  
Vol 4622 (1) ◽  
pp. 1-99 ◽  
Author(s):  
S. RAVICHANDRAN ◽  
P. VIGNESHWARAN ◽  
G. RAMESHKUMAR
Keyword(s):  
Morphological Variability ◽  
Marine Fishes ◽  
Valid Species ◽  
Indian Species ◽  
Nominal Species ◽  
Host Preferences ◽  
As Species ◽  
The Family ◽  
Species Inquirenda ◽  
Parasitic Isopod

The parasitic isopod family Cymothoidae Leach, 1818 of the India exclusive economic zone is reviewed. A total of 56 nominal species corresponding to 48 valid species belonging to sixteen genera are reviewed from 73 host species belonging to 35 families. Mothocya plagulophora (Haller, 1880), Nerocila depressa Milne Edwards, 1840, Nerocila loveni Bovallius, 1887, Nerocila trichiura (Miers, 1877), Norileca triangulata (Richardson, 1910) and Ryukyua globosa Williams & Bunkley-Williams, 1994 are redescribed. Indusa pustulosa Pillai, 1954 is synonymised with Agarna malayi Tiwari, 1952; Cymothoa krishnai Jayadev Babu & Sanjeeva Raj, 1984 is synonymised with Cymothoa eremita (Brünnich, 1783) and Nerocila priacanthusi Kumari, Rao & Shyamasundari, 1987 is synonymised with Nerocila arres Bowman & Tareen, 1983. Ourozeuktes bopyroides (Lesueur, 1814) is revised and excluded from the Indian fauna. The Indian cymothoid species Agarna bengalensis Kumari, Rao & Shaymasundari, 1990, Cymothoa asymmetrica Pillai, 1954 and Nerocila hemirhamphusi Shyamasundari, Rao & Kumari, 1990 are regarded here as species inquirenda. A key to the Indian genera of the family Cymothoidae and keys to the Indian species of the genera Cymothoa, Joryma, Mothocya, and Nerocila are presented. A checklist of the valid Cymothoidae species until now reported from Indian marine fishes are compiled. Host preferences, morphological variability and distribution are discussed. 

Population size and dispersal ofSulcophanaeus leander(Coleoptera: Scarabaeidae) on riverine beaches in the Amazonian region

2010 ◽  
Vol 27 (1) ◽  
pp. 111-114 ◽  
Author(s):  
Jorge Ari Noriega ◽  
Alberto Acosta
Keyword(s):  
Population Dynamics ◽  
Population Size ◽  
Neotropical Region ◽  
Dung Beetles ◽  
Behavioural Characteristics ◽  
The Family ◽  
Dispersal Abilities ◽  
Amazonian Region

Dung beetles are a well-defined guild within the family Scarabaeidae, with distinctive morphological, ecological and behavioural characteristics (Halffter & Matthews 1966). Although this group has been extensively studied (Hanski & Cambefort 1991) due in part to the important role they fulfil in ecosystems (Nicholset al. 2008), little information exists regarding population size and the scale of their dispersal abilities, especially in the Neotropical region. Moreover, few studies have been devoted to exploring the population dynamics of dung beetles (Roslin 1999, 2000).

Interspecific differences in the burrow morphology between the sympatric mud shrimps, Austinogebia narutensis and Upogebia issaeffi (Crustacea: Thalassinidea: Upogebiidae)

2005 ◽  
Vol 85 (4) ◽  
pp. 943-947 ◽  
Author(s):  
Kyoko Kinoshita ◽  
Gyo Itani
Keyword(s):  
Size Effects ◽  
Interspecific Differences ◽  
The Family ◽  
The Mean ◽  
The Difference ◽  
Burrow Structure ◽  
Shaped Pattern ◽  
Burrow Morphology ◽  
Shaped Section

The morphology of burrows constructed by the upogebiid mud shrimps Austinogebia narutensis and Upogebia issaeffi was studied using resin castings of burrows in situ on Mukaishima Island, Seto Inland Sea, Japan, where the two species occurred sympatrically. The burrow structure of both shrimps is a relatively simple Y-shaped pattern, which is typical of the family Upogebiidae. Total burrow length, and length and overall width of the U-shaped section of A. narutensis were greater than those of U. issaeffi, possibly because A. narutensis is the larger species. When the ratios of the burrow measurements to the mean burrow diameter were compared to exclude possible size effects, the burrows of A. narutensis had a wider and shallower U-shaped section than those of U. issaeffi. Because the casts were made where the two species occurred sympatrically, the differences in the burrow morphology were not due to the differences in environmental factors but to the difference in the shrimp species, whether they are adaptive or not.

scholarly journals RECORD OF THE FAMILY CALANIDAE (COPEPODA : CALANOIDA) WITH NOTES ON ITS MORPHOLOGICAL VARIABILITY AND DISTRIBUTION IN INDONESIA WATERS

1999 ◽  
Vol 4 (2) ◽  
pp. 79
Author(s):  
Mulyadi Mulyadi
Keyword(s):  
Morphological Variability ◽  
Relevant Information ◽  
Calanoid Copepods ◽  
Deep Waters ◽  
The Family

Some species of calanoid copepods of the family Calanidae inhabit surface or moderately deep waters, and provide excellent material for zoogeographic investigations. Very few studies on the taxonomy and morphological variability of the family Calanidae from Indonesian waters have been carried out. The present paper deals with relevant information on description and illustrations of five calanid species from the region. Five of previously known species, i.e., Canthocalanus pauper (Giebrecth, 1888); Undinula vulgaris (Dana, 1849); Casmocalanus darwini (Lubbock, 1860); Neocalanus gracilis (Dana, 1849); and Calanoides philippinensis (Kitou & Tanaka, 1969) have been recorded. Descriptions, measurements and figures are given for all these species, along with a review of their distribution over the world's oceans, and with taxonomic remarks, morphological variability, and synonymies.

Where are the species limits? Morphology versus genetics in Neotropical chewing lice of the genus Myrsidea (Phthiraptera: Menoponidae), with description of three new species 

Zootaxa ◽  
2017 ◽  
Vol 4324 (1) ◽  
pp. 161 ◽  
Author(s):  
STANISLAV KOLENCIK ◽  
OLDRICH SYCHRA ◽  
IVO PAPOUSEK ◽  
IVAN LITERAK
Keyword(s):  
New Species ◽  
Morphological Variability ◽  
Neotropical Region ◽  
Coi Gene ◽  
Species Boundaries ◽  
Passerine Birds ◽  
Chewing Lice ◽  
The Family ◽  
Three New Species ◽  
Mitochondrial Cytochrome Oxidase

Eleven species of lice of the genus Myrsidea Waterston, 1915 (Phthiraptera: Menoponidae) from passerine birds (Passeriformes: Cardinalidae, Fringillidae, Thraupidae) in the Neotropical Region are recorded and discussed. They include three new species with hosts in the family Thraupidae from Paraguay, which are described and illustrated: Myrsidea flaveolae new species ex Sicalis flaveola, Myrsidea habiae new species ex Habia rubica, and Myrsidea sayacae new species ex Thraupis sayaca. Five other previously known Myrsidea species are included with new data on intraspecific morphological variability, hosts associations and geographical distribution, as follows: Myrsidea coronatae, M. lightae, M. rufi, M. seminuda, and M. violaceae. Three further species are recorded at genus level only due to lack of adequate material. A 379 bp portion of the mitochondrial cytochrome oxidase I (COI) gene was sequenced in order to assess relative genetic divergence among Myrsidea populations. The application of intra- and interspecific sequence divergences as predictor of species boundaries in the taxonomy of this megadiverse genus is discussed. 

A New Blood Fluke from an Indian Tortoise,Trionyx gangeticus.

1933 ◽  
Vol 11 (3) ◽  
pp. 163-168 ◽  
Author(s):  
Gobind Singh Thapar
Keyword(s):  
Blood Vessels ◽  
Relative Position ◽  
North American ◽  
New Genera ◽  
Present Communication ◽  
Blood Fluke ◽  
The Family

The hermaphroditic Trematodes from the blood vessels of the turtles are included under the Family Spirorcbidae and represent several genera differing from each other in several features, including the general topography of the genital organs. It originally contained only two genera—SpirorchisandHapalotrema, differing from each other in the number of suckers, the relative position of the genital glands and the number of testes. Owing to these unique differences between them they were referred by Stunkard (1921) to two subfamilies—Spirorchinae and Hapalotreminae. The work prior to 1923 is summed up by Stunkard (1923) in a brilliant memoir, where, besides describing two new genera, one under each of the two subfamilies, from North American turtles, he has clearly elucidated some important points of systematic nature. Subsequently, the same author has considerably added to our knowledge of the group in several memoirs mentioned in the list of references at the end of the present communication.

Some Lernaeopodidae (Copepoda) from Fishes of British Columbia

1970 ◽  
Vol 27 (5) ◽  
pp. 865-885 ◽  
Author(s):  
Z. Kabata
Keyword(s):  
British Columbia ◽  
Coastal Waters ◽  
New Records ◽  
Morphological Variability ◽  
The Family ◽  
Elasmobranch Fishes

Nine species of copepods in the family Lernaeopodidae were collected as parasites of teleost or elasmobranch fishes common to coastal waters of British Columbia. One species (Schistobrachia tertia) has not been previously described. Two species (Dendrapta cameroni longiclavata and Lernaeopodina pacifica) are new records for the Canadian fauna. The remaining six include Pseudocharopinus dentatus, Clavella adunca, and detailed descriptions of Clavella parva, Clavella perfida, Nectobranchia indivisa, and Brachiella robusta, the last-named displaying a range of morphological variability hitherto unknown in Lernaeopodidae.

scholarly journals Amage imajimai sp. nov., a new species of Ampharetidae (Annelida: Polychaeta) from Japanese waters

2015 ◽  
Author(s):  
Michael G. Reuscher
Keyword(s):  
New Species ◽  
Identification Key ◽  
Sagami Bay ◽  
Polychaete Species ◽  
Deep Waters ◽  
The Family ◽  
Japanese Waters ◽  
A New Species

A new polychaete species of the family Ampharetidae, Amage imajimai sp. nov., is described from deep waters of Sagami Bay, Japan. It is characterized by the possession of four pairs of branchiae, twelve thoracic uncinigers, eleven abdominal uncinigers, and the lack of thoracic notopodial cirri. The new species is named in honor of the renowned Japanese polychaetologist Minoru Imajima. An identification key for all Amage species from Japanese waters is provided.

scholarly journals Molecular assessment of the species of Gracilariaceae (Gracilariales, Rhodophyta) from the Yucatan Peninsula, Mexico, including two new records for the Mexican Atlantic

2022 ◽  
Vol 1 (1) ◽  
Author(s):  
Martha I. Vilchis ◽  
Kurt M. Dreckmann ◽  
Oscar E. Hernández ◽  
Carlos A. Palma Ortíz ◽  
María Luisa Núñez Resendiz ◽  
...  
Keyword(s):  
New Records ◽  
Yucatan Peninsula ◽  
Morphological Variability ◽  
Genetic Distances ◽  
Quintana Roo ◽  
Yucatán Peninsula ◽  
The Family ◽  
Gracilariopsis Tenuifrons ◽  
Molecular Assessment ◽  
Rbcl Sequences

Background. The Gracilariaceae is one of the most diverse and abundant families of marine red algae. Most species in this family exhibit high morphological variability and overlapping of characters. In the Yucatan Peninsula 30 species have been historically recorded, but the phylogenetic identity for many of them is still unknown. Questions: Is the current diversity of the family in the area overestimated? Studied species: Crassiphycus caudatus, C. corneus, C. usneoides, Gracilaria flabelliformis, G. hayi, G. cf isabellana, G. microcarpa, G. occidentalis, G. suzanneae, Gracilariopsis tenuifrons. Study site and dates: Campeche: km 33 carretera Champotón, Bahía Tortuga, Puente Xen Kan III, Punta Xen, Sabancuy, 2017, 2018; Yucatan: Puerto Sisal, Puerto Progreso, Puerto Chicxulub, Puerto Telchac, 2018; Quintana Roo: Playa 88, Xcalacoco, Punta Esmeralda, 2019. Methods. Phylogenetic analysis (with COI-5P and rbcL sequences), supported by DNA species delimitation methods, genetic distances and morphological comparisons, allowed us to molecularly identify the specimens collected. Results. The phylogenetic identity of 10 species of Gracilariaceae was confirmed, two of which are new records for the Mexican Atlantic: G. hayi and G. suzanneae. Conclusion. The study demonstrated that the molecular assessment has proved to be very useful for the diversity evaluation, thus, the future phylogenetic identifies for the rest of morphospecies recorded in the area will allow a better approximation of Gracilariaceae diversity species.

Polydorid species (Polychaeta: Spionidae) in Japan, with descriptions of morphology, ecology and burrow structure. 1. Boring species

1999 ◽  
Vol 79 (5) ◽  
pp. 831-848 ◽  
Author(s):  
Waka Sato-Okoshi
Keyword(s):  
Biological Characteristics ◽  
Coralline Algae ◽  
Soft Sediments ◽  
New To Japan ◽  
Burrow Structure ◽  
Species Specific ◽  
Mollusc Shells

A total of 13 boring species of spionid polychaetes were extracted from 28 different calcareous substrata (i.e. mollusc shells, coralline algae and barnacle tests) from Japan. The spionids were: seven Polydora spp.: Polydora brevipalpa, P. websteri, P. curiosa, P. uncinata, P. aura, P. glycymerica, Polydora sp; five Dipolydora spp.: Dipolydora concharum, D. bidentata, D. alborectalis, D. giardi, D. armata; and one Carazziella sp.: Carazziella reishi. All of them inhabited self-excavated burrows in living and/or migratory calcareous substrata and they were never found from soft sediments. Burrow structures were species-specific. The Polydora species basically excavated simple U-shaped burrows, while the Dipolydora species excavated more varied, distinct burrows. The boring activity seemed species-specific among polydorids. This study attempts to summarize and discuss the biological characteristics of these boring species inhabiting Japan. In addition, P. curiosa, P. glycymerica, Polydora sp., D. giardi and C. reishi are new to Japan.

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