Microgobius urraca (Teleostei: Gobiidae), a new species of goby from the tropical eastern Pacific

Zootaxa ◽  
2012 ◽  
Vol 3447 (1) ◽  
pp. 41 ◽  
Author(s):  
LUKE TORNABENE ◽  
JAMES L. VAN TASSELL ◽  
D. ROSS ROBERTSON
Keyword(s):  
New Species ◽  
Eastern Pacific ◽  
Tropical Eastern Pacific ◽  
Dorsal Fin ◽  
Dichotomous Key ◽  
The Pacific ◽  
Fin Ray ◽  
Pacific Species ◽  
A New Species ◽  
Lateral Scale

A new species of goby in the genus Microgobius (Teleostei: Gobiidae: Gobiosomatini) is described from the Pacific coastof Panama. It is morphologically similar to M. erectus, but differs from that species in possessing fewer lateral scale rows,lacking a patch of ctenoid scales under the pectoral fin, having unpigmented epaxial myosepta, having a distinct oval-shaped dark blotch on the first dorsal fin, and possessing three blue-white stripes on a dark caudal fin. Differences in boththe number and type of scales, dorsal and anal fin ray counts, the poor development of a fleshy dorsal crest, and overallcolor patterns further distinguish this species from the remaining eastern Pacific congeners. Photographs of all Pacific species of Microgobius and a dichotomous key to the Pacific members of the genus are provided.

A new species of the porcelain crab genus Petrolisthes from the Pacific coast of Panama, with taxonomic notes on closely related species (Decapoda: Anomura: Porcellanidae)

Zootaxa ◽  
2020 ◽  
Vol 4858 (4) ◽  
pp. 576-588
Author(s):  
LUCIANE AUGUSTO DE AZEVEDO FERREIRA ◽  
L. DANIEL SANTANA-MORENO ◽  
ARTHUR ANKER
Keyword(s):  
New Species ◽  
Pacific Coast ◽  
Eastern Pacific ◽  
Closely Related Species ◽  
The Pacific ◽  
Colour Patterns ◽  
Porcelain Crab ◽  
General Configuration ◽  
Pacific Species ◽  
A New Species

A new species of porcelain crab, Petrolisthes lazarus sp. nov., is described from the Pacific coast of Panama, based on two female specimens. The new species is morphologically most similar to another eastern Pacific species, P. crenulatus Lockington, 1878, especially in the general configuration of the carapace, chelipeds and ambulatory legs. However, P. lazarus sp. nov. can be separated from P. crenulatus by the differences in the proportions of the carapace, the shape of the frontal region of the carapace, and the setation pattern of the cheliped. In addition, P. lazarus sp. nov. and P. crenulatus appear to be allopatric, the latter species presently being known only from Mexico. Among other eastern Pacific taxa, P. lazarus sp. nov. may have some affinities with P. ortmanni Nobili, 1901 and P. lewisi (Glassell, 1936), from which it can be easily distinguished by the chelipeds lacking a dense field of setae on the outer (lateral) surface of the palm and with different proportions of some articles, especially the carpus. The four species can also be distinguished from each other by their diagnostic, although somewhat variable colour patterns. 

scholarly journals A new species of chimaera, Hydrolagus melanophasma sp. nov. (Chondrichthyes: Chimaeriformes: Chimaeridae), from the eastern North Pacific

Zootaxa ◽  
2009 ◽  
Vol 2218 (1) ◽  
pp. 59-68 ◽  
Author(s):  
KELSEY C. JAMES ◽  
DAVID A. EBERT ◽  
DOUGLAS J. LONG ◽  
DOMINIQUE A. DIDIER
Keyword(s):  
New Species ◽  
North Pacific ◽  
Gulf Of California ◽  
Pacific Coast ◽  
Eastern Pacific ◽  
Video Footage ◽  
Pectoral Fins ◽  
Dorsal Fin ◽  
The Pacific ◽  
A New Species

A new species of chimaera, Hydrolagus melanophasma sp. nov. (Chimaeridae), is described from the eastern North Pacific. It is distinct from other eastern Pacific chimaeroids by the following characteristics: a large slightly curved dorsal fin spine extending beyond dorsal fin apex, a long second dorsal fin of uniform height throughout, large pectoral fins extending beyond the pelvic fin insertion when laid flat, trifid claspers forked for approximately one-quarter the total clasper length and a uniform black coloration throughout. The new species is compared to other eastern Pacific members of the genus Hydrolagus including H. alphus, H. colliei, H. macrophthalmus, and H. mccoskeri. Remote Operated Vehicle (ROV) video footage has identified and documented Hydrolagus melanophasma from the Gulf of California. ROV observations suggest that individuals typically occur over soft-bottom habitats or cobble patches with minimal vertical relief. This is in contrast to other eastern Pacific Hydrolagus species that tend to occur in areas of high rocky relief. The known distribution of this new species at present extends from southern California, U.S.A., along the Pacific coast of Baja California, Mexico, and into the Gulf of California.

Boraras naevus, a new species of miniature and sexually dichromatic freshwater fish from peninsular Thailand (Ostariophysi: Cyprinidae)

Zootaxa ◽  
2011 ◽  
Vol 3002 (1) ◽  
pp. 45 ◽  
Author(s):  
KEVIN W. CONWAY ◽  
MAURICE KOTTELAT
Keyword(s):  
New Species ◽  
Freshwater Fish ◽  
Colour Pattern ◽  
Sexually Dimorphic ◽  
Caudal Fin ◽  
Dorsal Fin ◽  
Fin Ray ◽  
A New Species ◽  
Lateral Scale ◽  
Pelvic Fin

Boraras naevus, new species, is described from peninsular Thailand. It is distinguished from other congeners by features of its sexually dimorphic colour pattern, principal caudal-fin, pelvic-fin and branched dorsal-fin ray counts, lateral scale row counts, and a number of osteological features.

Chrysopetalids (Phyllodocida: Chrysopetalidae) from the southern Mexican Pacific, including a new species

Zootaxa ◽  
2018 ◽  
Vol 4521 (1) ◽  
pp. 61 ◽  
Author(s):  
CHRISTOPHER CRUZ-GÓMEZ ◽  
J. ROLANDO BASTIDA-ZAVALA
Keyword(s):  
New Species ◽  
Pacific Coast ◽  
New Records ◽  
Eastern Pacific ◽  
Tropical Eastern Pacific ◽  
Mexican Pacific ◽  
The Pacific ◽  
The Family ◽  
First Time ◽  
A New Species

The family Chrysopetalidae has been poorly studied from the Pacific coast of Mexico compared to other families. Specifically from the southern Mexican Pacific, only two species of the family have been recorded in previous studies, Chrysopetalum occidentale and Paleanotus chrysolepis. In this study 311 specimens were revised, and nine species, belonging to six genera were found. Eight of these species are new records from the southern Mexican Pacific coast: Arichlidon watsonae n. sp., Bhawania cf. goodei, Chrysopetalum elegantoides, C. maculata, Hyalopale sp., Paleaequor psamathe, Paleanotus bellis and P. purpurea. A new species is also described, Arichlidon watsonae n. sp., which is characterized by the curved tips blades of the falcigers and their small and ovoid palps. Additionally, the genera Arichlidon and Hyalopale are recorded by first time from the Tropical Eastern Pacific. 

The eastern Pacific species of Salmoneus Holthuis, 1955, with description of a remarkable new species from Las Perlas Archipelago, Panama  (Malacostraca: Decapoda: Alpheidae)

Zootaxa ◽  
2019 ◽  
Vol 4651 (1) ◽  
pp. 125-140 ◽  
Author(s):  
ARTHUR ANKER
Keyword(s):  
New Species ◽  
Pacific Coast ◽  
Eastern Pacific ◽  
Tropical Eastern Pacific ◽  
Type Specimens ◽  
Shark Teeth ◽  
The Pacific ◽  
First Time ◽  
Pacific Species ◽  
Alpheid Shrimp

The present study deals with five species of the alpheid shrimp genus Salmoneus Holthuis, 1955 from the tropical eastern Pacific. One of them is new to science and is described as Salmoneus tiburon sp. nov. The new species is presently known only from the Las Perlas Archipelago in Panama and can be distinguished from all other congeners by the dentition on the cutting edges of the major chela, with some dactylar teeth reminiscent of shark teeth. It is also one of the largest species of the genus, with the carapace length of both type specimens surpassing 8.0 mm. Salmoneus serratidigitus (Coutière, 1897), a species with an ample distribution across the Indo-Pacific, is recorded for the first time from the Pacific coast of Panama and is confirmed from Colombia. Salmoneus malagensis Anker & Lazarus, 2015, previously known only from Bahía Málaga in Colombia, is recorded from Panama’s Azuero Peninsula. The remaining two species, S. excavatus Anker, 2011 and S. alvarezi Anker & Lazarus, 2015, are recorded regionally from Las Perlas Archipelago in Panama and Playa Tarcoles in Costa Rica, both for the first time since their original descriptions. An identification key to the five currently known eastern Pacific species of Salmoneus is provided. However, several immature and/or incomplete specimens herein preliminarily reported as Salmoneus spp., as well photographic records from southern California, USA, indicate the presence of further undescribed species in the eastern Pacific. 

scholarly journals Microglanis carlae, a new species of bumblebee catfish (Siluriformes: Pseudopimelodidae) from the río Paraguay basin in Paraguay

2008 ◽  
Vol 6 (3) ◽  
pp. 425-432 ◽  
Author(s):  
Héctor S. Vera Alcaraz ◽  
Weferson J. da Graça ◽  
Oscar A. Shibatta
Keyword(s):  
New Species ◽  
Species Complex ◽  
Anterior Margin ◽  
Color Pattern ◽  
Caudal Peduncle ◽  
Dorsal Fin ◽  
Fin Ray ◽  
Pectoral Spine ◽  
Adipose Fin ◽  
A New Species

Microglanis carlae, new species, is described from the río Paraguay basin and distinguished from its congeners by the following combination of characters: paired and anal fins mottled or with thin faint bands, trunk with dark-brown saddles, anterior margin of pectoral spine with serrations retrorse proximally and antrorse distally, tip of pectoral spine as a distinct bony point, continuous portion of lateral line reaching vertical through last dorsal-fin ray, caudal peduncle with irregularly shaped, faint to dark blotch, maxillary barbel surpassing vertical through dorsal-spine origin, and dark bar on posterior flank continuous from base of adipose fin to that of anal fin. The new species is included in the Microglanis parahybae species complex on the basis of color pattern.

Gaidropsarus mauli a new species of three-bearded rockling (Gadiformes, Gadidae) from the Lucky Strike hydrothermal vent field (Mid-Atlantic Ridge) and the Biscay Slope (Northeastern Atlantic)

Zootaxa ◽  
2018 ◽  
Vol 4459 (2) ◽  
pp. 301
Author(s):  
MANUEL BISCOITO ◽  
LUIZ SALDANHA
Keyword(s):  
New Species ◽  
Hydrothermal Vent ◽  
Valid Species ◽  
Lucky Strike ◽  
Pectoral Fins ◽  
Dorsal Fin ◽  
Fin Ray ◽  
Mid Atlantic Ridge ◽  
A New Species ◽  
Northeastern Atlantic

Gaidropsarus mauli, new species, is described from the Lucky Strike Hydrothermal vent site (Mid-Atlantic Ridge) and from the Bay of Biscay. It is distinguished from congeners by a combination of characters such as the number of vertebrae, the size of the first dorsal-fin ray, the profile of the head and the shape of the snout, in dorsal view, the size and the position of the eyes, the length of the pelvic fins, the shape of the pectoral fins, and the length of the lateral line. A comparison with the other 13 valid species of the genus is presented. 

scholarly journals A new species of Anchoviella Fowler, 1911 (Clupeiformes: Engraulidae) from the Amazon basin, Brazil

2012 ◽  
Vol 10 (1) ◽  
pp. 13-18 ◽  
Author(s):  
Marina V. Loeb
Keyword(s):  
New Species ◽  
Standard Length ◽  
Posterior Margin ◽  
Amazon Basin ◽  
Head Length ◽  
Estuarine Species ◽  
Dorsal Fin ◽  
Fin Ray ◽  
Upper Jaw ◽  
A New Species

Anchoviella juruasanga is described from the drainages of rios Negro, Madeira, Tapajós, Trombetas, Tocantins, and Jari, in the Amazon basin, Brazil. The new species is distinguished from its congeners by having a short upper jaw, with its posterior tip extending between the verticals through anterior and posterior margins of the pupil (vs. posterior tip of upper jaw extending beyond the vertical through posterior margin of the pupil). Anchoviella juruasanga is also distinct from other strictly freshwater Amazonian species of the genus by the distance from tip of snout to posterior end of upper jaw between 8 and 11% in standard length (vs. 14% or more in A. alleni, A. carrikeri, A. guianensis, and A. jamesi). The anal-fin origin slightly posterior to or at the vertical through the base of the last dorsal-fin ray further distinguishes the new species from A. alleni (anal-fin origin posterior to the vertical through the last anal-fin ray by at least 14% of head length) and A. jamesi (anal-fin origin anterior to the vertical through the last anal-fin ray). An identification key for the Amazonian species of Anchoviella, including marine and estuarine species known to occur in the lower portion of the basin, is presented.

scholarly journals A new species of the loricariid catfish genus Hemipsilichthys from southern Rio de Janeiro coastal rivers, southeastern Brazil (Teleostei: Siluriformes)

Zootaxa ◽  
2003 ◽  
Vol 285 (1) ◽  
pp. 1 ◽  
Author(s):  
EDSON H.L. PEREIRA ◽  
ROBERTO E. REIS ◽  
PABLO F.M. SOUZA ◽  
HENRIQUE LAZZAROTTO
Keyword(s):  
New Species ◽  
Rio De Janeiro ◽  
Close Relationships ◽  
Southeastern Brazil ◽  
Southern Coast ◽  
Dorsal Fin ◽  
Fin Ray ◽  
Coastal Rivers ◽  
A New Species ◽  
Janeiro State

Hemipsilichthys nimius, new species, is described from the upper Perequê-Açu River in Parati, in the southern coast of Rio de Janeiro State, southeastern Brazil. The new species is distinguished from the remaining 18 Hemipsilichthys species by modally having eight branched rays in the dorsal fin (vs. seven branched rays), by possessing a posteriorly expanded dorsal-fin membrane connecting the last dorsal-fin ray to the dorsum and, except from H. gobio and H. papillatus, by having teeth cusps equal in size (vs. small lateral cusp or unicuspid teeth in both dentary and premaxilla). From H. gobio and H. papillatus it is further distinguished by the larger orbital diameter and by its V-shaped dorsal-fin spinelet. Hemipsilichthys nimius shares with H. gobio and H. papillatus several characters that might be indicative of close relationships. These putative phylogenetic relationships are discussed.

scholarly journals Leptoderma macrophthalmum n.sp., a new species of smooth-head (Otocephala: Alepocephalidae) from the Mid Atlantic Ridge

Zootaxa ◽  
2011 ◽  
Vol 2876 (1) ◽  
pp. 49 ◽  
Author(s):  
INGVAR BYRKJEDAL ◽  
JAN YDE POULSEN ◽  
JOHN GALBRAITH
Keyword(s):  
New Species ◽  
Molecular Evidence ◽  
The Pacific ◽  
Mid Atlantic Ridge ◽  
Pacific Species ◽  
A New Species

A new species of Alepocephalidae, Leptoderma macrophthalmum n.sp., is described from one specimen caught in 2004 at about 2100 m depth at the Mid Atlantic Ridge, north of the Azores. Morphological and molecular evidence indicate a relationship closest to the Pacific species Leptoderma lubricum.

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