A new species of Glyphocrangon (Decapoda: Caridea: Glyphocrangonidae) from off the coast of western Mexico

Zootaxa ◽  
2010 ◽  
Vol 2372 (1) ◽  
pp. 358-366 ◽  
Author(s):  
MICHEL E. HENDRICKX
Keyword(s):  
New Species ◽  
Deep Water ◽  
Distal Part ◽  
Relative Size ◽  
Water Sampling ◽  
Lateral Carina ◽  
Western Mexico ◽  
East Pacific ◽  
Males And Females ◽  
A New Species

A new species of Glyphocrangon has been collected during deep-water sampling off western Mexico, in the east Pacific. The series of specimens, including both males and females, was found between 780 and 1879 m depth. Glyphocrangon sp. nov. is close to G. sicaria Faxon, 1893 and G. vicaria Faxon, 1896, both occurring in the east Pacific. It differs from both species, however, by the absence of tubercles between the lateral carinae, the presence of a large tooth at the anterior end of the second anterior lateral carina, the size of the eye (proportionally smaller in G. vicaria), and the presence of two large rostral lateral teeth (one obsolete in G. sicaria). The new species is, however, strikingly similar to G. fimbriata Komai & Takeuchi, 1994, from the Mid-Pacific Mountains. It differs from the later species by the shape of the male endopod of first pleopod, the relative size and spination of the appendices interna and masculina, the presence of a large lateral tooth on pleura of abdominal somites 3–5, and the absence of curved setae on distal part of the dactyl of pereiopods 3–5.

A new deep-water species ofEpimeria(Amphipoda: Gammaridea: Epimeriidae) from the continental slope of western Mexico

2012 ◽  
Vol 93 (4) ◽  
pp. 991-997 ◽  
Author(s):  
I. Winfield ◽  
M. Ortiz ◽  
M.E. Hendrickx
Keyword(s):  
New Species ◽  
New Zealand ◽  
Deep Water ◽  
Gulf Of California ◽  
Relative Size ◽  
Western Mexico ◽  
East Pacific ◽  
Deep Water Species ◽  
A New Species ◽  
Water Species

A new species of deep waterEpimeriais described based on material collected in 1526–1586 m depth during the TALUD X expedition in the central Gulf of California, Mexico. It is the sixth species of this genus reported for the East Pacific.Epimeria morroneisp. nov. is morphologically similar toE. norfanziLörz, 2011 (New Zealand, 1268 m depth) andE. coraJ.L. Barnard, 1971 (off Oregon, USA, 2086 m depth).Epimeria morroneisp. nov., however, differs from these two species by a combination of several characters, including: vestigial eyes; multidentate mandibular lacinia mobilis; a distinct setae arrangement in palm and dactylus of gnathopods 1–2; the shape and relative size of coxae 1–5; and the shape of the telson.

Laeonereis watsoni (Annelida, Nereididae), a new species from western Mexico

2017 ◽  
Vol 98 (6) ◽  
pp. 1347-1353 ◽  
Author(s):  
J. A. de León-González ◽  
N. Méndez ◽  
J. G. Navedo
Keyword(s):  
New Species ◽  
Coastal Lagoon ◽  
Anterior Margin ◽  
Pacific Coast ◽  
Coastal Lagoons ◽  
Relative Size ◽  
Mexican Pacific ◽  
Shrimp Farm ◽  
Western Mexico ◽  
A New Species

A new species of Laeonereis from a shrimp farm associated with a subtropical coastal lagoon on the Mexican Pacific coast is described. The new species is characterized by a deep anterior groove on the prostomium, which is shared only with L. culveri. However, longer tentacular cirri extending back to the anterior margin of chaetiger two, the number of papillae of each group on the maxillary ring of the pharynx, and the relative size of the homogomph falcigers in the new species, allow us to separate the two species. Although the species has not been previously detected in the coastal lagoon surrounding the shrimp farm, we postulate that L. watsoni n. sp. is likely to be part of the invertebrate communities of the upper parts of similar coastal lagoons that are common along the tropical coasts of Mexico.

A new species of Munidopsis (Anomura, Galatheoidea, Munidopsidae) from the Gulf of California, western Mexico

Crustaceana ◽  
2013 ◽  
Vol 86 (11) ◽  
pp. 1304-1315 ◽  
Author(s):  
Michel E. Hendrickx ◽  
Manuel Ayón-Parente
Keyword(s):  
New Species ◽  
Gulf Of California ◽  
Anterior Margin ◽  
Distal Portion ◽  
Posterior Half ◽  
Western Mexico ◽  
East Pacific ◽  
Pacific Species ◽  
A New Species

A new species ofMunidopsisWhiteaves, 1784 is described from the SW Gulf of California, western Mexico. The new species differs from all other known species ofMunidopsisof the East Pacific by the presence of numerous antero-posteriorly compressed processes on the carapace, many of which are truncate and with crenulated anterior margin, by its oval-shaped carapace, wider in its posterior half, and by the short, subrectangular, narrow rostrum with an upturned distal portion. It also differs from the East Pacific species and other species ofMunidopsisby the densely pitted carapace and appendages.

Species of Scina Prestandrea, 1833 (Amphipoda, Hyperiidea, Scinidae) from western Mexico with the description of a new species from the Gulf of California

Zootaxa ◽  
2020 ◽  
Vol 4803 (2) ◽  
pp. 329-344
Author(s):  
REBECA GASCA ◽  
MICHEL E. HENDRICKX
Keyword(s):  
New Species ◽  
Deep Water ◽  
Gulf Of California ◽  
Common Species ◽  
The Other ◽  
Single Sample ◽  
Western Mexico ◽  
Extensive Survey ◽  
A New Species

Only a few previous surveys of the deep-water planktonic fauna have been accomplished off western Mexico, in particular in the Gulf of California. Samples of pelagic amphipods were obtained between surface and as deep as 2394 m using different gear during an extensive survey in this area. Among these samples, nine species of the genus Scina were recognized, including 78 specimens: 27 males and 51 females. The genus Scina inhabits mesopelagic waters at depths over 200 m, a community that remains largely unknown. The material examined includes a new species, the first reported from the Gulf of California, which is described and compared with its closest congeners, S. setigera Wagler, 1926 and S. parasetigera Zeidler, 1990. These three species share the presence of a long bristle on the base of the dactylus of pereopods 5 and 6. Scina sp. nov. differs from these other two species mainly by: 1) the shape and proportions of pereiopods 1–7; 2) the presence of three inner spiniform elements on uropod 1; 3) the insertion of the exopod on distal 1/3 of uropods. Of the remaining species collected during the survey S. borealis was by far the most abundant and widely distributed, followed by S. wolterecki and S. marginata. The other five species, S. curvidactyla, S. nana, S. pacifica, S. setigera, and S. submarginata, were represented by one or two specimens only. Co-occurence of species of Scina in samples was low with a maximum of four species in a single sample, all associated with S. borealis, the most common species. The distribution of Scina species collected during this survey is briefly discussed. 

Esperiopsis koltuni sp. nov. (Demospongiae: Poecilosclerida: Esperiopsidae), a carnivorous sponge from deep water of the Sea of Okhotsk (North Pacific)

2007 ◽  
Vol 87 (6) ◽  
pp. 1379-1386 ◽  
Author(s):  
Alexander V. Ereskovsky ◽  
Philippe Willenz
Keyword(s):  
New Species ◽  
Deep Water ◽  
Sea Of Okhotsk ◽  
Distal Part ◽  
Growth Form ◽  
Prey Capture ◽  
The Sea Of Okhotsk ◽  
Larval Skeleton ◽  
A New Species ◽  
Aquiferous System

Esperiopsis koltuni, a new species of the sponge family Esperiopsidae, is described from deep water of the Sea of Okhotsk. The new species has a unique growth form: there is a basal plate with radiating cylindrical branches, whose oval flat distal parts bear filament-like outgrowths. Megascleres are arranged differently in the main part of branches and in their distal flat parts. The dermal membrane contains isochelae with protruding alae and abundant sigmancistras. Microscleres are represented by large anchorate spatuliferous isochelae, small isochelae, sigmas and sigmancistras. Esperiopsis koltuni sp. nov. is hermaphroditic, with parenchymella larva. The larval skeleton consists only of sigmas and sigmancistras. Esperiopsis koltuni sp. nov. can be easily distinguished from other Esperiopsis species by dimensions and combination of spicule types. In particular, it is the only species in the genus with three different size categories of styles. The new species lacks the aquiferous system, has a characteristic body plan with symmetrical lateral expansions, an unusual arrangement of microscleres in the dermal membrane and true sigmancistras. Moreover, prey capture by a filament-like outgrowth of the flat distal part was observed. All of these characteristics indicate that Esperiopsis koltuni sp. nov. is a carnivorous sponge.

First record of Prionocrangon Wood Mason & Alcock, 1891 (Crustacea: Decapoda: Caridea: Crangonidae) in the East Pacific and description of a new species from western Mexico

Zootaxa ◽  
2012 ◽  
Vol 3205 (1) ◽  
pp. 63 ◽  
Author(s):  
MICHEL E. HENDRICKX ◽  
MANUEL AYÓN-PARENTE
Keyword(s):  
New Species ◽  
Larval Development ◽  
Gulf Of California ◽  
First Record ◽  
Abdominal Somite ◽  
Western Mexico ◽  
East Pacific ◽  
A New Species

A new species of the rare genus Prionocrangon is described from the central Gulf of California, Mexico. This is the firstrecord for this genus of Crangonidae in the east Pacific which is otherwise widely distributed in the Atlantic, Pacific andIndian oceans. Prionocrangon incisum sp. nov. differs from all other known species of Prionocrangon by the presence ofa deep notch near the posteroventral margin of the sixth abdominal somite. Presence of post-embryonic larvae in one partly spent female indicates that P. incisum sp. nov. exhibits abbreviated larval development.

A new deep-water species of Trischizostoma (Crustacea: Amphipoda: Gammaridea: Trischizostomatidae) from western Mexico, NE Pacific Ocean

2016 ◽  
Vol 97 (1) ◽  
pp. 141-149 ◽  
Author(s):  
Ignacio Winfield ◽  
Michel E. Hendrickx ◽  
Manuel Ortiz
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Deep Water ◽  
First Record ◽  
Outer Plate ◽  
Western Mexico ◽  
Deep Water Species ◽  
Ne Pacific ◽  
A New Species ◽  
Water Species

A new species of Trischizostoma collected at depths of 1392–1420 m from western Mexico is described. It represents the first record of the genus in the NE Pacific. The new species is morphologically similar to T. circulare, T. tohokuense and T. richeri. These species all share a large rostrum, expanded eyes and an entire telson. Distinctive characters of the new species include a dorsally unnotched urosomite 1, a subconical coxa 2, a subtriangular propodus of gnathopod 1, a single seta and one protuberance on the palm of gnathopod 2, the presence of 10 spine-teeth in the outer plate of maxilla 1 and of a large, 1-articulate maxilla 1 palp, and the telson with 2 minute simple setae and 2 minute projections distally.

scholarly journals A new species of deep-water spider crab of the genus Paramaya De Haan, 1837 from the Bay of Bengal, India (Crustacea, Brachyura, Majidae)

ZooKeys ◽  
2018 ◽  
Vol 769 ◽  
pp. 77-88 ◽  
Author(s):  
Peter K. L. Ng ◽  
M. Prema ◽  
S. Ravichandran
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Deep Water ◽  
Bay Of Bengal ◽  
Distal Part ◽  
Spider Crab ◽  
Eastern India ◽  
The Indian Ocean ◽  
A New Species

The identity of the majid species of Paramaya De Haan, 1837, in the Indian Ocean is clarified with the collection of fresh specimens from the Bay of Bengal. Previously identified as P.spinigera (De Haan, 1837) which is known only from Japan, Taiwan, and Korea, the material from eastern India is here referred to a new species, P.mulli sp. n. The new species can easily be distinguished from all congeners by its relatively shorter pseudorostral and carapace spines, more swollen branchial regions, distinctly granulated male thoracic sternum, and the G1 is not prominently curved with the dorsal projection on the sub distal part short and the tip rounded.

A New Species of Rhacophorus Genus (Amphibia: Anura: Rhacophoridae: Rhacophorinae) from Van Ban District, Lao Cai Province, Northern Vietnam

2019 ◽  
Vol 26 (6) ◽  
pp. 325-334
Author(s):  
Ivan I. Kropachev ◽  
Nikolai L. Orlov ◽  
Hoa Thi Ninh ◽  
Tao Thien Nguyen
Keyword(s):  
New Species ◽  
Distal Part ◽  
Slender Body ◽  
Northern Vietnam ◽  
Lao Cai ◽  
Lower Ratio ◽  
A New Species ◽  
Green Triangle ◽  
Brown Color

We describe a new species of the Rhacophorus genus, which differs from all species known in Asia by the combination of characters. It strongly differs also from small and middle-sized species of Rhacophorus sensu lato: Rhacophorus calcaneus Smith, 1924, Leptomantis cyanopunctatus (Manthey et Steiof, 1998), Rhacophorus hoabinhensis Nguyen, Pham, Nguyen, Ninh et Ziegler, 2017, Rhacophorus hoanglienensis Orlov, Lathrop, Murphy et Ho, 2001, Zhangixalus jarujini (Matsui et Panha, 2006), Rhacophorus laoshan Mo, Jiang, Xie et Ohler, 2008, Rhacophorus pardalis Günther, 1858, Rhacophorus rhodopus Liu et Hu, 1960, Rhacophorus robertingeri Orlov, Poyarkov, Vassilieva, Ananjeva, Nguyen, Sang, and Geissler, 2012, Leptomantis robinsonii (Boulenger, 1903), Rhacophorus spelaeus Orlov, Gnophanxay, Phimminith, and Phomphoumy, 2010, Rhacophorus translineatus Wu, 1977, Rhacophorus turpes Smith, 1940, Rhacophorus vampyrus Rowley, Le, Thi, Stuart et Hoang, 2010, Rhacophorus viridimaculatus Ostroshabov, Orlov et Nguyen, 2013 by having brown color with two green dorsolateral stripes starting at the groin level and connecting through the distal part of eyelid with green triangle on the head, slender body and head, lower ratio HW/HL 0.86, lower HW/SVL 0.28 and lower ratio HL/SVL 0.32.

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