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

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. 

Zootaxa ◽  
2019 ◽  
Vol 4612 (4) ◽  
pp. 581
Author(s):  
LUCY C. ALARCÓN-ORTEGA ◽  
JOSÉ L. CARBALLO

A new species of caprellid, Deutella mazatlanensis n. sp., is described from Mazatlán Bay, (east Pacific México). Deutella mazatlanensis was found associated with bryozoans, hydroids and sponges in shallow waters. The new species can be differentiated from the remaining species of the genus mainly by the dorsal, anteriorly directed projection on the head; the two dorsal projections and a lateral acute projection anteroventrally projected on pereonite 2 and gnathopod 2 in males. The presence of this species on the Mexican Pacific coast, constitutes the fourth report of Deutella genus for the Pacific Ocean and the first record from the tropical Eastern Pacific. 


Zootaxa ◽  
2019 ◽  
Vol 4651 (1) ◽  
pp. 125-140 ◽  
Author(s):  
ARTHUR ANKER

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. 


1977 ◽  
Vol 55 (12) ◽  
pp. 1988-1991 ◽  
Author(s):  
Z. Kabata ◽  
S. N. Wilkes

Peniculus asinus, a new species of copepod parasitic on Sebastes (Pisces: Teleostei) off the Pacific coast of Canada is described and illustrated. The copepod is an unique member of its genus in that it possesses cephalothoracic holdfast processes. The discovery of a Peniculus with these processes is taken as evidence confirming the place of this genus in the family Pennellidae.


2022 ◽  
Vol 445 ◽  
pp. 7-24
Author(s):  
I.Ya. Grichanov ◽  
◽  
O.O. Selivanova ◽  

An annotated list of dolichopodid species recorded from Kurile Archipelago (Russia) is given for the first time. Sciapus basarukini sp. n. from Kunashir Island is described and illustrated. New records for 26 species, including 8 species new for the Kurile Islands, are presented. Long-legged flies are recorded for the first time from the Anuchina, Tanfilyeva, Polonskogo, Urup, Chirpoy, Brat-Chirpoyev, Simushir, Ushishir, Matua, Raikoke, Paramushir, Kharimkotan, Makanrushi, Atlasov, and Onekotan islands. Two species are excluded from the fauna of Kurils. In total, 54 species are recorded from the Kurile Archipelago that appa¬rently makes up 50–60% of the actual dolichopodid fauna in this region. The trends discovered on the Kurile Islands for plant species, i.e. the landscape diversity and the number of plant species increase from small to large islands, and decrease from southern islands northward, are generally supported by the case of flies of the family Dolichopodidae.


Author(s):  
Manuel Ayón-Parente ◽  
Michel E. Hendrickx ◽  
Eduardo Ríos-Jara ◽  
José Salgado-Barragán

A total of 75 specimens belonging to four species of thalassinoids were collected in the intertidal and estuarine zones of two localities along the Pacific coast of Mexico.Callianassa tabogensisis recorded for the first time in Mexico, and is transferred to the genusNeotrypaea. Material ofCallichirusis assigned toCallichirus seilacheriwith some doubts due to taxonomic problems related to this genus in the eastern Pacific.Neocallichiruscf.grandimana, an amphi-American species described for the western Atlantic and previously reported in Ecuador and along the Pacific coast of Panama and Colombia, is reported for the first time in Mexico.Upogebia dawsoniis recorded for the second time from the coast of Jalisco. An updated list of Axiidea and Gebiidea known from the Mexican Pacific is provided, including 35 species.


2020 ◽  
Vol 60 (1) ◽  
pp. 269-290
Author(s):  
Jindřich Roháček

Species of the family Anthomyzidae (Diptera: Acalyptrata) occurring in Taiwan are reviewed. Eleven species have been recognized, 8 of them new to science. However, because of limited and poorly preserved material, only three species of the genus Anthomyza Fallén, 1810, viz. A. robusta sp. nov. (Chiayi and Nantou Counties, both sexes), A. caesarea sp. nov. (Taichung City area, both sexes) and A. elongata sp. nov. (Chiayi County, female only), are described. The remaining 5 undescribed species, viz. Amygdalops sp. nov. near cuspidatus (Taichung City area), Amygdalops sp. nov. near curtistylus (Nantou and Kinmen Counties), Anthomyza sp. nov. near elongata (Yilan County), Anthomyza sp. nov. (1) near flavosterna (Chiayi County) and Anthomyza sp. nov. (2) near flavosterna (Nantou County), are diagnosed but remain unnamed. A new species group of Anthomyza, viz. the A. flavosterna group, is established and diagnosed, to include the East Palearctic A. flavosterna Sueyoshi & Roháček, 2003, A. caesarea sp. nov., A. elongata sp. nov. and 3 additional unnamed species from Taiwan, while the remaining A. robusta sp nov. belongs to the A. bellatrix group. All six Taiwanese Anthomyza species seem to be associated with montane habitats and could be endemic. It is estimated that up to 20 species of Anthomyzidae could occur in Taiwan. The longitudinal dark pattern of the wing, found in A. caesarea sp. nov., is recorded for the first time in the genus Anthomyza which is the fourth lineage of Anthomyzidae in which this type of pattern has independently evolved. Preliminary keys to Taiwanese species of the genera Amygdalops Lamb, 1914 and Anthomyza are presented.


Zootaxa ◽  
2020 ◽  
Vol 4858 (4) ◽  
pp. 576-588
Author(s):  
LUCIANE AUGUSTO DE AZEVEDO FERREIRA ◽  
L. DANIEL SANTANA-MORENO ◽  
ARTHUR ANKER

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. 


Zootaxa ◽  
2009 ◽  
Vol 2218 (1) ◽  
pp. 59-68 ◽  
Author(s):  
KELSEY C. JAMES ◽  
DAVID A. EBERT ◽  
DOUGLAS J. LONG ◽  
DOMINIQUE A. DIDIER

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.


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