scholarly journals Distribution Patterns of the Morphology, Species, and Sex in the Stingray Species Complex of Himantura uarnak, Himantura undulata,and Himantura leopardain Indonesia

2013 ◽  
Vol 17 (2) ◽  
Author(s):  
Irma Shita Arlyza ◽  
Dedy Duryadi Solihin ◽  
Dedi . Soedharma
Keyword(s):  
Species Complex ◽  
Distribution Patterns

scholarly journals Genetic and Morphological Evidence to Split the Coris julis Species Complex (Teleostei: Labridae) Into Two Sibling Species: Resurrection of Coris melanura (Lowe, 1839) Redescription of Coris julis (Linnaeus, 1758)

2021 ◽  
Vol 8 ◽  
Author(s):  
Sergio Ramírez-Amaro ◽  
Francesc Ordines ◽  
Ronald Fricke ◽  
Ignacio Ruiz-Jarabo ◽  
Ignacio Bolado ◽  
...  
Keyword(s):  
Sibling Species ◽  
Species Complex ◽  
Secondary Phase ◽  
Distribution Patterns ◽  
Western Mediterranean ◽  
Primary Phase ◽  
Valid Species ◽  
Morphological Evidence ◽  
Large Variability ◽  
Mediterranean Populations

The genus Coris contains 28 valid species, most of them with an Indo-Pacific distribution and only two species recognized from the eastern Atlantic: Coris atlantica and C. julis. This last species has a large variability in its coloration, which caused that during the first half of XIX century the sexes were considered as different species. Two liveries have been described for C. julis: (i) primary or “giofredi,” which corresponds to females and primary-phase males and is considered common for Atlantic and Mediterranean populations; and (ii) the secondary or “julis” which corresponds to secondary-phase males, which is different for Atlantic and Mediterranean populations. In this study we demonstrate the existence of two sibling species within the C. julis species complex. Morphological and molecular analyses showed that this species complex is composed of two species: (i) C. julis, distributed mainly in the Mediterranean, from which the species was originally described; and (ii) C. melanura, a species described by Lowe in 1839 which is resurrected here, mainly distributed in the eastern Atlantic and western Mediterranean. We also discuss the possible speciation event to understand the contemporary distribution patterns of Coris species in the eastern Atlantic and Mediterranean.

Phylogenetic and morphological resolution of the Helobdella stagnalis species-complex (Annelida: Clitellata: Hirudinea)

Zootaxa ◽  
2018 ◽  
Vol 4403 (1) ◽  
pp. 61 ◽  
Author(s):  
NAIM SAGLAM ◽  
ULRICH KUTSCHERA ◽  
RALPH SAUNDERS ◽  
WILLIAM M. SAIDEL ◽  
KATHERINE L.W. BALOMBINI ◽  
...  
Keyword(s):  
Type Species ◽  
Species Complex ◽  
Distribution Patterns ◽  
Molecular Data ◽  
Present Evidence ◽  
Dispersal Mechanism ◽  
The World ◽  
Successful Group ◽  
And Behavior

The glossiphoniid freshwater leech, Helobdella stagnalis, was described by Linnaeus 1758 based on common European specimens. The presence of a brown, chitinous scute on the dorsal-anterior surface, as observed on leeches elsewhere in the world, has generally led to the classification of all scute-bearing members of the genus as H. stagnalis. Here we describe the morphology and behavior of the type species from Europe, and analyze H. stagnalis-like specimens collected worldwide. We present evidence for at least four distinct scute-bearing Helobdella species that can be morphologically resolved. Maximum Parsimony (MP) and Bayesian Inference (BI) analyses at the mitochondrial cytochrome c oxidase subunit I (COI) locus further supported this notion, with divergence values suggesting a mid-Miocene ancestor of this successful group of cosmopolitan hirudineans. New species, Helobdella echoensis nov. sp., Helobdella eriensis nov. sp., and Helobdella serendipitious nov. sp., are described, based on morphological, anatomical and molecular data. Current distribution patterns of Helobdella spp. suggest a robust, global dispersal mechanism, as well as local pockets of endemism. 

Hetaerina calverti (Odonata: Zygoptera: Calopterygidae) sp. nov., a new cryptic species of the American Rubyspot complex

Zootaxa ◽  
2020 ◽  
Vol 4766 (3) ◽  
pp. 485-497
Author(s):  
YESENIA MARGARITA VEGA-SÁNCHEZ ◽  
LUIS FELIPE MENDOZA-CUENCA ◽  
ANTONIO GONZÁLEZ-RODRÍGUEZ
Keyword(s):  
New Species ◽  
Species Complex ◽  
Morphological Analysis ◽  
Morphological Characteristics ◽  
Distribution Patterns ◽  
Taxonomic History ◽  
Variable Species ◽  
Males And Females ◽  
Important Character ◽  
A New Species

Hetaerina americana Fabricius, 1798 has a long and irresolute taxonomic history. Several synonyms have been suggested (H. californica Hagen in Selys-Longchamps, 1859, H. basalis Hagen in Selys-Longchamps, 1859, H. texana Walsh, 1863, H. scelerata Walsh, 1863, etc.), related to the variation in the size of the wing spots as well as to the morphology of the male cerci. However, Calvert (1901) suggested that H. americana represents one variable species. Nevertheless, Vega-Sánchez et al. (2019) through a genetic and morphological analysis presented evidence to propose that H. americana represents a species complex. In the present work, we describe a new species that belongs to this complex: H. calverti sp. nov. The morphological characteristics by which males and females of H. calverti differ from H. americana are highlighted. The most important character for the differentiation of males is the shape of the cerci and the size of the individuals (when the two species are in sympatry). In females, the main differences are in the shape of the intersternites and the medio-dorsal carina of the last segment of the abdomen. Some generalities about the biology of the species are presented, including geographical distribution patterns and genetic divergence data. [urn:lsid:zoobank.org:act:F5C329AE-7A00-4979-8A0D-A13D869E54B1] 

Trichomycetes in aquatic insects from Prince Edward Island, Canada

2007 ◽  
Vol 85 (10) ◽  
pp. 949-963 ◽  
Author(s):  
D. B. Strongman
Keyword(s):  
New Brunswick ◽  
Aquatic Insects ◽  
Prince Edward Island ◽  
Species Complex ◽  
East Coast ◽  
High Tide ◽  
Distribution Patterns ◽  
The Usa ◽  
First Time ◽  
Unique Species

Trichomycetes, an ecological grouping of fungi and protists associated with the guts of aquatic arthropods, are distributed globally. The diversity of this unique species complex is, however, more completely documented in some parts of the USA and Europe than in Canada. Twenty species of trichomycetes were collected from insect hosts at six sites in Prince Edward Island, situated in the Gulf of St. Lawrence about 14 km off the east coast of New Brunswick. Five new species of Harpellales (Fungi, Kickxellomycotina), Caudomyces longicollis Strongman sp. nov. from Antocha sp. (Tipulidae), Legeriomyces minae Strongman sp. nov. from mayflies, and Smittium ditrichosporum Strongman sp. nov., Smittium insulare Strongman sp. nov., and Smittium tynense Strongman sp. nov. from chironomids are described. Smittium brevisporum L.G. Valle & Santam. and Smittium gracilis L.G. Valle & Santam., previously known only from Spain, are recorded for the first time in North America. A number of species of Harpellales and Amoebidiales (Phylum Mesomycetozoa) previously recorded from the region (P.E.I. and N.S.), and several that are common and widely distributed, were also recovered. Stachylina pedifer Lichtw. & M.C. Williams was collected from chironomids in a stream exposed to seawater during high tide. Trichomycete diversity is high on P.E.I., as it is in many regions where extensive surveys have been conducted, including islands such as Australia and New Zealand. More data from islands may help shed some light on distribution patterns for these obligate endobionts and provide some insights into mechanisms for dispersal.

A new species of Anoplodactylus (Arthropoda: Pycnogonida) from the Great Barrier Reef and discussion on the A. tenuicorpus-complex

Zootaxa ◽  
2007 ◽  
Vol 1435 (1) ◽  
pp. 19
Author(s):  
CLAUDIA P. ARANGO ◽  
FRANZ KRAPP
Keyword(s):  
New Species ◽  
Coral Reefs ◽  
Great Barrier Reef ◽  
Species Complex ◽  
Distribution Patterns ◽  
Species Boundaries ◽  
Barrier Reef ◽  
West Pacific ◽  
Sea Spider ◽  
A New Species

A new species of sea spider is described from the Great Barrier Reef, Australia. Anoplodactylus perissoporus n.sp. is in a species complex of extremely slender and tenuous forms that have serrated heel spines and are known to inhabit Indo- West Pacific coral reefs. The new species is characterized by the multiple cement gland pores on femora of males. Otherwise the species is very similar to, and probably closely related to A. tenuicorpus. The species boundaries within the A. tenuicorpus complex are difficult to discern and are not clearly defined, especially for females. Other character sets seem necessary to indicate affinities and distribution patterns of the tenuicorpus complex.

HUBUNGAN KEPADATAN BIVALVIA DENGAN PARAMETER LINGKUNGAN DI PESISIR TANJUNG PURA KABUPATEN BANGKA TENGAH

2020 ◽  
Vol 13 (2) ◽  
pp. 112-121
Author(s):  
Sudiyar . ◽  
Okto Supratman ◽  
Indra Ambalika Syari
Keyword(s):  
Negative Impact ◽  
Principal Component ◽  
Environmental Parameters ◽  
Data Retrieval ◽  
Distribution Patterns ◽  
Random System ◽  
System Method ◽  
Relationship Of ◽  
The Relationship ◽  
Anadara Granosa

The destructive fishing feared will give a negative impact on the survival of this organism. This study aims to analyze the density of bivalves, distribution patterns, and to analyze the relationship of bivalves with environmental parameters in Tanjung Pura village. This research was conducted in March 2019. The systematic random system method was used for collecting data of bivalves. The collecting Data retrieval divided into five research stasions. The results obtained 6 types of bivalves from 3 families and the total is 115 individuals. The highest bivalve density is 4.56 ind / m², and the lowest bivalves are located at station 2,1.56 ind / m²,  The pattern of bivalve distribution in the Coastal of Tanjung Pura Village is grouping. The results of principal component analysis (PCA) showed that Anadara granosa species was positively correlated with TSS r = 0.890, Dosinia contusa, Anomalocardia squamosa, Mererix meretrix, Placamen isabellina, and Tellinella spengleri were positively correlated with currents r = 0.933.

CONDITIONS OF HILLING HABITAT OF CHELONIA MYDAS (GREEN TURTLE) IN PANGUMBAHAN BEACH UJUNG GENTENG, SUKABUMI SELATAN

2019 ◽  
Vol 1 (02) ◽  
pp. 64-67
Author(s):  
Meilisha Putri Pertiwi ◽  
Suci Siti Lathifah
Keyword(s):  
Data Collection ◽  
Surface Temperature ◽  
Green Turtle ◽  
Data Retrieval ◽  
Distribution Patterns ◽  
Chelonia Mydas ◽  
Nesting Habitat ◽  
Beach Width ◽  
The Many ◽  
Pandanus Tectorius

Research on the condition of the nesting habitat of Chelonia mydas (green turtle) in Pangumbahan Beach, Ujung Genteng, South Sukabumi has been carried out. Data retrieval is done 6 times for 2 days, 27-28 November 2017 at 3 observation stations. The abiotic parameters measured include surface temperature and depth of 50 cm, surface humidity and depth of 50 cm, beach width, beach slope, and the size of sand grains. While the biotic parameters measured were density, relative density, the frequency of attendance, and distribution patterns of Pandanus tectorius (sea pandanus) vegetation. Based on the results of data processing, the biophysical conditions in Pangumbahan Beach are still suitable for the Chelonia mydas nesting habitat. It also got clear evidence of the many Chelonia mydas landings during the data collection.

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