scholarly journals On the identity of the common Caligus (Copepoda: Siphonostomatoida: Caligidae) from salmonid netpen systems in southern Chile

2000 ◽  
Vol 69 (1-2) ◽  
pp. 137-146 ◽  
Author(s):  
Geoffrey A. Boxshall ◽  
Sandra Bravo
Keyword(s):  
New Species ◽  
Southern Chile ◽  
Diagnostic Characters ◽  
Genital Complex ◽  
The Common ◽  
Caudal Rami ◽  
A New Species ◽  
Female Genital

The commonest caligid copepod infesting commercial salmonid netpen systems in southern Chile is described as a new species, Caligus rogercresseyi. This species belongs to the macarovi-group of species within the genus. It differs from Caligus flexispina Lewis 1964, with which it has previously been confused, in several important characters. These include the relatively elongate caudal rami, the proportions of the female genital complex and of the male abdomen, and the armature and ornamentation of the antenna in both sexes. The form of the sensillae associated with the postantennal process and the form of the male maxilliped are identified as possible additional diagnostic characters of the macarovi-group.

Two new parastenocaridid genera (Copepoda, Harpacticoida) from South America, including a revision of Noodt’s columbiensis-group and the redescription of Parastenocaris tapajosensis Noodt, 1963

Crustaceana ◽  
2017 ◽  
Vol 90 (5) ◽  
pp. 535-570 ◽  
Author(s):  
Santiago Gaviria ◽  
Danielle Defaye ◽  
Paulo H. C. Corgosinho
Keyword(s):  
New Species ◽  
South America ◽  
New Genus ◽  
Diagnostic Character ◽  
New Genera ◽  
Diagnostic Characters ◽  
Body Segments ◽  
Caudal Rami ◽  
A New Species

The genusColombocarisis proposed for a new species discovered on submerged mosses of a high Andean lake in Colombia. The diagnostic characters of the genus mainly concern the morphology of legs, particularly the endopod of leg 2, leg 3, the endopodite of leg 4 and the peculiar leg 5, the cuticular windows of body segments and the morphology of the furca. The new genusNoodtcarisis proposed for three species of theParastenocaris columbiensis-group, viz.,P. columbiensis,P. kubitzkiiandP. roettgeri, described from the Colombian Llanos Orientales, and forP. tapajosensisfrom the Brazilian Amazonas. This genus is well defined by the ornamentation of the caudal rami and the morphology of legs 2 to 5. The absence of endopod on female leg 3 is a diagnostic character at least for the Colombian species. A key for the identification of the species composing the new genera is provided.

Description of Elaphoidella paramuna n. sp. (Canthocamptidae), a new harpacticoid copepod from Colombia

Crustaceana ◽  
2015 ◽  
Vol 88 (9) ◽  
pp. 1003-1029 ◽  
Author(s):  
Santiago Gaviria ◽  
Danielle Defaye
Keyword(s):  
New Species ◽  
Harpacticoid Copepod ◽  
Neotropical Region ◽  
Male And Female ◽  
Diagnostic Characters ◽  
Identification Keys ◽  
Caudal Rami ◽  
A New Species

A new species of harpacticoid copepod was discovered on submerged mosses of a high Andean lake in Colombia. The diagnostic characters of the male and female canthocamptidElaphoidella paramunan. sp. are based on the chaetotaxy of legs 1 to 4, morphology of leg 5, armature of anal urosomite, size and armature of anal operculum and morphology, armature and ornamentation of caudal rami. It belongs to the group X of Lang (1948); its relationships withElaphoidella pectinata,E. armataandE. brevifurcataare discussed. The 35 species and subspecies ofElaphoidellaknown in the Neotropical region are assigned to groups I, II, VII, VIII and X of Lang’s system (1948). Identification keys to ColombianElaphoidellaspecies are provided.

Review of the genus Haloschizopera (Harpacticoida: Miraciidae, Diosaccinae) with description of a new species

Zootaxa ◽  
2021 ◽  
Vol 4927 (4) ◽  
pp. 525-538
Author(s):  
QINGHE LIU ◽  
LIN MA ◽  
XINZHENG LI
Keyword(s):  
New Species ◽  
East China Sea ◽  
East China ◽  
The East China Sea ◽  
Diagnostic Characters ◽  
China Sea ◽  
Combined Features ◽  
Caudal Rami ◽  
A New Species

Haloschizopera cheni sp. n., was recognized from our latest collections from the East China Sea. The new species is similar to H. abyssi Becher, 1974 but differs from it by the following combined features: baseoendopodal lobe of female P5 with five setae, P2 and P3 enp-3 both longer than enp-1-2 combined, and caudal rami longer than broad. Comparison of all the known species of Haloschizopera was performed. Species in the genus can be divided into four groups by the setal formulae of P3 and P4. The main diagnostic characters of each species are listed and a key to all known species of Haloschizopera is also provided. 

scholarly journals A new species of Pupulina van Beneden, 1892 (Copepoda, Siphonostomatoida, Caligidae) from Aetobatus cf. narinari (Pisces, Myliobatidae) from the Pacific coast of Ecuador

ZooKeys ◽  
2018 ◽  
Vol 777 ◽  
pp. 1-16
Author(s):  
Yanis Cruz-Quintana ◽  
Víctor Caña-Bozada ◽  
Eduardo Suárez-Morales ◽  
Ana María Santana-Piñeros
Keyword(s):  
New Species ◽  
Pacific Coast ◽  
Unique Combination ◽  
Lateral Spine ◽  
Complex Iv ◽  
Genital Complex ◽  
The Pacific ◽  
Adjacent Patch ◽  
Caudal Rami ◽  
A New Species

A new caligid copepod species, Pupulinamantensissp. n. is described based on female and male specimens collected from the gills of the myliobatid elasmobranch Aetobatuscf.narinari Euphrasen, 1790 captured off the Pacific coast of Ecuador. The new species has a unique combination of characters that diverges from its known congeners, including: (i) weakly developed posterolateral processes on the genital complex; (ii) large spines on posterior surface of maxilliped basis (iii) abdomen slender, unsegmented, approximately 1/2 length and 1/5 width of genital complex; (iv) third exopodal segment of leg II with single long naked spine adjacent to minute, naked lateral spine; (v) velum of leg II with adjacent patch of denticles; (vi) caudal rami slightly less than half the length of genital complex; (vii) post-antennal process with robust, posteriorly directed tine, sclerotized stump posterolaterally, and two multi-sensillate papillae located on or near base of process (viii) post-oral process oval. The overall prevalence of P.mantensissp. n. on its host was 37.5% and its mean abundance was 1.87 specimens per host. This is the second record of the genus Pupulina from Ecuador and the second record of Pupulina infecting rays of the Myliobatinae genus Aetobatus, of the subfamily Myliobatinae, after its discovery on A.ocellatus in Australia, thus confirming this expansion of its previously known host range to a new elasmobranch subfamily.

A new species of Contomastix (Squamata, Teiidae) supported by total evidence, with remarks on diagnostic characters defining the genus

2019 ◽  
pp. 23-36
Author(s):  
Mario. R. Cabrera
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Phylogenetic Reconstruction ◽  
Total Evidence ◽  
Molecular Evidence ◽  
Proximal Margin ◽  
Diagnostic Characters ◽  
Morphological Differences ◽  
A New Species ◽  
Molecular Characters

Formerly Cnemidophorus was thought to be the most speciose genus of Teiidae. This genus comprised four morphological groups that were later defined as four different genera, Ameivula, Aurivela, Cnemidophorus and Contomastix. The last appears as paraphyletic in a recent phylogenetic reconstruction based on morphology, but monophyletic in a reconstruction using molecular characters. Six species are allocated to Contomastix. One of them, C. lacertoides, having an extensive and disjunct geographic distribution in Argentina, Uruguay and Brazil. Preliminary analyses revealed morphological differences among its populations, suggesting that it is actually a complex of species. Here, we describe a new species corresponding to the Argentinian populations hitherto regarded as C. lacertoides, by integrating morphological and molecular evidence. Furthermore, we demonstrate that the presence of notched proximal margin of the tongue is a character that defines the genus Contomastix.

Coniosternum masneri sp. nov., a new species of the family Scathophagidae (Diptera) from Canada

2017 ◽  
Vol 186 (1) ◽  
pp. 113-116
Author(s):  
František Šifner
Keyword(s):  
New Species ◽  
Diagnostic Characters ◽  
The Family ◽  
A New Species

Abstract A new Nearctic species of the genus Coniosternum Becker, 1894, C. masneri sp. nov., is described from Canada, and its important diagnostic characters are illustrated.

On a new Temnocephala (Platyhelminthes) from Southern Patagonia (Chile, Argentina), with a redescription of T. chilensis and some systematic and biogeographical insights

Zootaxa ◽  
2020 ◽  
Vol 4852 (3) ◽  
pp. 383-395
Author(s):  
RODRIGO PONCE DE LEÓN ◽  
ERICH H. RUDOLPH ◽  
ODILE VOLONTERIO
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Southern Chile ◽  
Host Preferences ◽  
Southern Patagonia ◽  
Diagnostic Key ◽  
A New Species

To date, only one species of Temnocephala is known from Chile, Temnocephala chilensis, and three from southern Argentina (Patagonia), namely T. chilensis, Temnocephala dionii, and Temnocephala mexicana. Here we describe a new species of Temnocephala and provide an updated description of T. chilensis based on material found on an anomuran crab (Aeglidae) from southern Chile. Additional hosts and localities are reported for both species in southern Argentina and Chile, and a diagnostic key for all species of Temnocephala hosted on Aegla and Parastacidae is included as well. In southern Chile, both T. chilensis and the new species were found on the crayfish Samastacus spinifrons and on the anomuran crabs Aegla abtao and Aegla alacalufi; in addition, the new species was found on Aegla manni, and T. chilensis on Aegla rostrata. In southern Argentina, T. chilensis and the new species were found on Aegla riolimayana and S. spinifrons. Based on their shared traits (morphology of the penial stylet, host preferences and geographic distribution), the temnocephalans hosted in Aegla are tentatively gathered into two clusters, the Chilensis and Axenos groups. 

scholarly journals Discovery of the Smallest Lace Bug from Mid-Cretaceous of Northern Myanmar Supports the Hypothesis of a Miniaturization Phenomenon of Insects in Kachin Amber (Hemiptera: Heteroptera: Tingidae)

Taxonomy ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 60-68
Author(s):  
Jun Souma ◽  
Shûhei Yamamoto ◽  
Yui Takahashi
Keyword(s):  
New Species ◽  
New Genus ◽  
The Other ◽  
Diagnostic Characters ◽  
Lace Bug ◽  
New Finding ◽  
A New Species

A total of 14 species in seven tingid genera have been described from the mid-Cretaceous Burmese (Kachin) amber from northern Myanmar, with very distinct paleofauna. Here, a new species of a new genus, Burmavianaida anomalocapitata gen. et sp. nov., is described from Kachin amber. This new species can be readily distinguished from the other described tingid taxa by the apparently smaller body and the structures of the pronotum and hemelytron. Burmavianaida gen. nov. shares the diagnostic characters with two clades composed of three extant subfamilies (Cantacaderinae + Tinginae) and Vianaidinae and may represent an extinct clade distinct from them. To the best of our knowledge, B. anomalocapitata sp. nov. is the smallest species of Tingidae among over 2600 described species. Our new finding supports the hypothesis of the miniaturization phenomenon of insects in Kachin amber, as suggested by previous studies.

Ahnea, a new genus from New Zealand (Coleoptera: Staphylinidae: Pselaphinae), with description of a new species

2014 ◽  
Vol 147 (4) ◽  
pp. 381-389 ◽  
Author(s):  
Jong-Seok Park ◽  
Christopher E. Carlton
Keyword(s):  
New Species ◽  
New Zealand ◽  
New Genus ◽  
Key To Species ◽  
Diagnostic Characters ◽  
Distribution Maps ◽  
Line Drawings ◽  
A New Species

AbstractAhnea keejeongi Park and Carlton (Coleoptera: Staphylinidae: Pselaphinae), a new genus and new species of New Zealand endemic beetle belonging to the supertribe Faronitae is described. Six previously described species are included to this genus and four species are synonymised as follow: Sagola dissonans Broun, 1921 and S. planicula Broun, 1921 under Ahnea ventralis (Broun, 1912); S. carinata Broun, 1912 and S. lineiceps Broun, 1921 under Ahnea lineata (Broun, 1893). A key to species, habitus photographs, line drawings of diagnostic characters, and distribution maps are provided.

Marine tube-dwelling diatoms of eastern Canada: descriptions, checklist, and illustrated key

1984 ◽  
Vol 62 (4) ◽  
pp. 778-794 ◽  
Author(s):  
Christopher S. Lobban
Keyword(s):  
New Species ◽  
Northwest Territories ◽  
Common Species ◽  
Bay Of Fundy ◽  
Eastern Canada ◽  
Lawrence Estuary ◽  
The Common ◽  
Living Material ◽  
St Lawrence Estuary ◽  
A New Species

From a study of living materials and specimens in several regional herbaria, a list has been drawn up of all the common and several of the rarer tube-dwelling diatoms of eastern Canada. Descriptions, illustrations of living material and acid-cleaned valves, and a key to the species are provided. Most specimens were from the Atlantic Provinces and the St. Lawrence estuary, but a few were from the Northwest Territories. By far the most common species is Berkeleya rutilans. Other species occurring commonly in the Quoddy Region of the Bay of Fundy, and sporadically in space and time elsewhere, arc Navicula delognei (two forms), Nav. pseudocomoides, Nav. smithii, Haslea crucigera, and a new species, Nav.rusticensis. Navicula ramosissima and Nav. mollis in eastern Canada are usually found as scattered cohabitants in tubes of other species. Nitzschia tubicola and Nz. fontifuga also occur sporadically as cohabitants.

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