scholarly journals A new species of deep-water Holothuroidea (Echinodermata) of the genus Synallactes from off western Mexico

2010 ◽  
Vol 74 (3) ◽  
pp. 599-603 ◽  
Author(s):  
Claude Massin ◽  
Michel E. Hendrickx
Keyword(s):  
New Species ◽  
Deep Water ◽  
Western Mexico ◽  
A New Species

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.

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. 

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 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.

Prionosciadium guzmanianum (Apiaceae, Apioideae), a new species with red flowers from western Mexico

2021 ◽  
Vol 39 (6) ◽  
Author(s):  
Ramón Cuevas‐Guzmán ◽  
Ana Patricia del Castillo‐Batista ◽  
José Guadalupe Morales‐Arias
Keyword(s):  
New Species ◽  
Western Mexico ◽  
A New Species

Bougainvillia aberrans (Cnidaria, Hydrozoa), a new species of hydroid and medusa from the upper bathyal zone off Bermuda

1993 ◽  
Vol 71 (5) ◽  
pp. 997-1002 ◽  
Author(s):  
Dale R. Calder
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
North Atlantic ◽  
Deep Water ◽  
North Atlantic Ocean ◽  
Deep Water Species ◽  
A New Species ◽  
Water Species

Bougainvillia aberrans n.sp. is described from Bermuda in the western North Atlantic Ocean. Specimens were collected at a depth of 150 fathoms (274 m) from the polypropylene buoy line of a crab trap. The hydroid colony of B. aberrans is erect, with a polysiphonic hydrocaulus, a smooth to somewhat wrinkled perisarc, hydranths having a maximum of about 16 tentacles, and medusa buds arising only from hydranth pedicels. Medusae liberated in the laboratory from these hydroids differ from all other known species of the genus in having a long, spindle-shaped manubrium, lacking oral tentacles, having marginal tentacles reduced to mere stubs, and being very short-lived (surviving for a few hours at most). Gonads develop in medusa buds while they are still attached to the hydroids, and gametes are shed either prior to liberation of the medusae or shortly thereafter. The eggs are surrounded by an envelope bearing nematocysts (heterotrichous microbasic euryteles). The cnidome of both hydroid and medusa stages consists of desmonemes and heterotrichous microbasic euryteles. The diagnosis of the genus Bougainvillia is modified to accommodate this new deep-water species.

scholarly journals A new species of Neotanais Beddard (Crustacea: Tanaidacea) from the Subantartctic, off the Falkland Islands

Zootaxa ◽  
2003 ◽  
Vol 339 (1) ◽  
pp. 1 ◽  
Author(s):  
KIM LARSEN ◽  
MAGDALENA BLAZEWICZ-PASZKWYCZ
Keyword(s):  
New Species ◽  
Deep Water ◽  
Falkland Islands ◽  
Dorsal Margin ◽  
Male And Female ◽  
Recent Activity ◽  
A New Species

The male and female of Neotanais krappschickelae n.sp., from the Subantarctic off the Falkland Islands are described from the RV Eltanin deep-water cruises of 1962. Both male and female of the new species can be separated from other species by the combination of characters including: a densely setose dorsal margin of the cheliped carpus, dactylus and fixed finger of subequal length; cheliped sclerite, all pereopodal bases, and posterior-lateral edges of pereonites with numerous plumose setae. The recent activity within tanaidacean taxonomy including neotanaid taxonomy has made it necessary to re-diagnose Neotanais.

A new species of the genus Rapturella (Gastropoda: Acteonidae) from southeast Brazil

Zootaxa ◽  
2018 ◽  
Vol 4521 (1) ◽  
pp. 125 ◽  
Author(s):  
CARLO M. CUNHA ◽  
LUIZ RICARDO L. SIMONE
Keyword(s):  
New Species ◽  
Continental Shelf ◽  
Deep Water ◽  
Shell Morphology ◽  
Southwest Pacific ◽  
Southeast Brazil ◽  
Pacific Waters ◽  
A New Species ◽  
High Diversity

Acteonidae d'Orbigny, 1843 is the largest family within the superfamily Acteonoidea (Bouchet et al. 2017) and includes small gastropods typical of infralittoral environments. Most acteonids living on the continental shelf or in deep water have been described on the basis of shell morphology alone (Simone 2006; Valdés 2008; Cunha 2011; Salvador & Cunha 2016), because little material with soft parts has been collected and examined. Consequently, little is known about the ecology of the species.  Recently, many new species of the genus Acteon Montfort, 1810 have been described from tropical Southwest Pacific waters (Valdés 2008), suggesting that a high diversity of acteonid species may await discovery in other deep water environments, including those of Brazil. 

Allotoca maculata, a New Species of Goodeid Fish from Western México, with Comments on Allotoca dugesi

Copeia ◽  
1980 ◽  
Vol 1980 (3) ◽  
pp. 408 ◽  
Author(s):  
Michael Leonard Smith ◽  
Robert Rush Miller
Keyword(s):  
New Species ◽  
Western Mexico ◽  
A New Species
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