scholarly journals Checklist and practical identification key for the cichlid fishes (Cichliformes: Cichlidae) of the La Plata drainage in Bolivia, including three new geographical records

2019 ◽  
Author(s):  
Pascal I. Hablützel ◽  
Robert B. Huanto
Keyword(s):  
Fish Species ◽  
Cichlid Fish ◽  
Identification Key ◽  
Museum Collections ◽  
Additional Species ◽  
Cichlid Fishes ◽  
La Plata ◽  
Bolivian Amazon ◽  
Voucher Specimens ◽  
Historia Natural

AbstractIn comparison with the Bolivian Amazon, the ichthyofauna of the La Plata drainage of Bolivia received relatively little attention historically. Until now, 14 species of cichlid fish have been registered from this area. After an exhaustive review of museum collections (Museo de Historia Natural Noel Kempff Mercado y Colección Boliviana de Fauna), we can report three additional species: Astronotus crassipinnis (Heckel, 1840), Mesonauta festivus (Heckel, 1840) and Satanoperca pappaterra (Heckel, 1840). Four other species, which have been listed in previous publications, can be confirmed for the La Plata drainage of Bolivia based on the examination of voucher specimens: Aequidens plagiozonatus Kullander, 1984, Apistogramma commbrae (Regan, 1906), A. trifasciata (Eigenmann & Kennedy, 1903) and Crenicichla vittata Heckel, 1840. As such, 16 of the 17 species can be referenced with voucher specimens in museum collections. We also provide an identification key for the cichlid fish species of the study area.

scholarly journals Preliminary report on bycatch fish species collected from the Tokyo Submarine Canyon, Japan

ZooKeys ◽  
2019 ◽  
Vol 843 ◽  
pp. 117-128
Author(s):  
Yusuke Miyazaki ◽  
Akinori Teramura ◽  
Hiroshi Senou
Keyword(s):  
Fish Species ◽  
Preliminary Report ◽  
Fish Fauna ◽  
Submarine Canyon ◽  
Future Research ◽  
Museum Collections ◽  
Central Japan ◽  
Voucher Specimens ◽  
Unidentified Species ◽  
Initial List

An ichthyofaunal list of bycatch species was compiled, the fish captured by bottom gill-nets set at approximately 300 m depth in the Uraga Suido Channel central Japan. Fragmentary ichthyofaunal lists are available for this area; these lists have focused on chondrichthyans or commercial actinopterygians, but voucher specimens have not been prepared for museum storage. An initial list of the fish fauna was compiled with vouchers, and seven species not previously recorded from the channel are reported. Most of these species belong to the Class Actinopterygii; Apristurus platyrhynchus (Tanaka, 1909), Beryx decadactylus Cuvier, 1829, Hoplostethus japonicus Hilgendorf, 1879, Sebastes iracundus (Jordan & Starks, 1904), Scalicus amiscus (Jordan & Starks, 1904), Atrobucca nibe (Jordan & Thompson, 1911), and an unidentified species of the eelpout family Zoarcidae. The taxonomic identity of the eelpout and the biogeography of the Uraga Suido Channel are considered. Further research is required to resolve outstanding faunistic issues, but live collections will likely end when the aging fishers who provide the specimens retire. At that point, existing museum collections will become increasingly important for future research. Examination of a collection that may have been previously deposited in the Chiba Prefectural Museum will be essential.

Revision of the Metallactus hamifer species-group (Coleoptera: Chrysomelidae: Cryptocephalinae)

Zootaxa ◽  
2019 ◽  
Vol 4657 (2) ◽  
pp. 201-245
Author(s):  
DAVIDE SASSI
Keyword(s):  
Taxonomic Revision ◽  
Species Group ◽  
Identification Key ◽  
Additional Species

The taxonomic revision of a group of Metallactus species, morphologically and chromatically close to M. hamifer Suffrian, 1866, is presented here. Before this revision, catalogues had been reporting 12 species attributable to this group. In the present work one species has been synonymized and six have been described as new to science. Therefore, the group now includes 17 species. The species described as new are: Metallactus abditus sp. nov., M. chamorroi sp. nov., M. dicaprioi sp. nov.; M. madefactus sp. nov., M. praetorius sp. nov., M. viator sp. nov. The following synonymy is proposed: Metallactus albopictus Suffrian, 1866 (= Griburius persimilis Burmeister, 1877 syn. nov.). One additional species, formerly included in Griburius Haldeman, 1849 is transferred to Metallactus: Metallactus octoguttatus (Burmeister, 1877) comb. nov. Lectotypes were designated where necessary for stability of nomenclature. The new synonymies, the name-bearing type fixations and designations and the nomenclatural acts are critically discussed. An identification key for the species group is also provided. 

Spatial and temporal repeatability in parasite community structure of tropical fish hosts

Parasitology ◽  
2003 ◽  
Vol 127 (4) ◽  
pp. 387-398 ◽  
Author(s):  
V. M. VIDAL-MARTÍNEZ ◽  
R. POULIN
Keyword(s):  
Community Structure ◽  
Marine Fish ◽  
Fish Species ◽  
Cichlid Fish ◽  
Positive Association ◽  
Parasite Community ◽  
Tropical Fish ◽  
Freshwater Species ◽  
Interspecific Associations ◽  
Red Grouper

An assessment is made of the repeatability of parasite community structure in space for a marine fish, and in space and time for a freshwater fish from south-eastern Mexico. The marine fish species was the red grouper,Epinephelus morio(collected from 9 localities), and the freshwater species was the cichlid,Cichlasoma urophthalmus(collected from 6 localities: including monthly at 2 localities for 1 year, and bimonthly at 1 locality in 1990 and 1999). Pairwise interspecific associations and analyses of nested patterns in the distributions of parasite species among hosts were used in both fish species, with comparisons over time made only with the cichlid. Positive interspecific associations, and nested patterns were noted in some localities for both fish species, and/or at some sampling times for the cichlid fish. However, non-random patterns in the structure of parasite communities in these 2 host species only were observed sporadically. When present, nestedness in both fish species was apparently linked with a positive association between total infection intensities and fish size. Additionally, adjacent localities were more likely to display similar parasite community structure than distant ones. This preliminary result suggests that distance between localities is an important determinant of predictability in parasite community structure.

Illustrated guide to the echinoid (Echinodermata: Echinoidea) fauna of South Africa

Zootaxa ◽  
2017 ◽  
Vol 4296 (1) ◽  
pp. 1 ◽  
Author(s):  
ZOLEKA FILANDER ◽  
CHARLES GRIFFITHS
Keyword(s):  
South Africa ◽  
South African ◽  
Sea Urchins ◽  
Virtual Museum ◽  
Museum Collections ◽  
Key To Species ◽  
Diagnostic Features ◽  
Additional Species ◽  
Short Account ◽  
Photographic Images

The sea-urchins (class Echinoidea) of South Africa have received little taxonomic attention since the last comprehensive regional monographic guide, which was published in 1976 and is thus now severely outdated. That account was also poorly illustrated, making it difficult to use. Recent work by the authors has also added some 19 additional species to the known fauna, which now stands at 70 species. The aims of this study are thus to revise and update the South African echinoid fauna list, and to present a new, easy to use and fully-illustrated guide to all known regional species. The analysis is based mainly on examination of samples from the Iziko South African Museum collections, although additional records from other museum collections, the published literature, photographic images submitted to the EchinoMap Virtual Museum Database and any other reliable records are also included. A short account of each species is given, including relevant synonymy and literature, and brief notes on identification, size, and global distribution. Photographs that best represent the diagnostic features of each species and a map showing its known records within the region accompany each species account. A binary key to species is also provided. 

Application of extinction risk and conservation criteria for assessing fish species in the lower La Plata River basin, South America

2012 ◽  
Vol 22 (2) ◽  
pp. 181-197 ◽  
Author(s):  
C. R. M. Baigún ◽  
D. Colautti ◽  
H. L. López ◽  
P. A. Van Damme ◽  
R. E. Reis
Keyword(s):  
South America ◽  
River Basin ◽  
Fish Species ◽  
Extinction Risk ◽  
La Plata
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