scholarly journals Tubicolous polychaete worms (Annelida) from Bahía de Chamela Islands Sanctuary, Mexico, with the description of a new bamboo worm

2020 ◽  
Vol 8 ◽  
Author(s):  
Beatriz Yáñez-Rivera ◽  
María Ana Tovar-Hernández ◽  
Cristian Galván-Villa ◽  
Eduardo Ríos-Jara
Keyword(s):  
New Species ◽  
New Records ◽  
Tropical Pacific ◽  
Full Length ◽  
Marine Biodiversity ◽  
Eastern Tropical Pacific ◽  
Nuchal Organs

The islands and islets of Bahía de Chamela, in the Eastern Tropical Pacific, were declared as the first marine sanctuary in Mexico and has been protected since 2002. Their marine biodiversity has been documented in a series of papers in the last decade, but only three species of polychaete worms have been reported. Sixteen species of sedentary polychaete worms belonging to the families Maldanidae, Oweniidae, Sabellariidae, Sabellidae and Serpulidae are reported to the Bahía de Chamela Islands Sanctuary, 15 of these species constituting the first records in the area. Isocirrus tropicus (Monro, 1928) (Monro 1928) and Notaulax californica (Treadwell, 1906) (Treadwell 1906) constitute new records to Mexico; Idanthyrsus mexicanus Kirtley, 1904 (Kirtley 1994) is first recorded since its description and one species of bamboo worm (Maldanidae) is described as new to science. The new species belongs to the genus Clymenura Verril, 1900 (Verrill 1900) and its characterised by the presence of a glandular shield on chaetiger 8; a cephalic plaque oval with smooth margins and a rounded palpode; nuchal organs straight, parallel, almost full length of plaque; manubriavicular uncini present from chaetiger 1 with 3–4 teeth above the main fang without hairs or bristles; two pre-anal achaetous segments with tori; an anal funnel with alternating triangular cirri, being the longest that are located mid-ventrally.

A new Asterocheres (Copepoda, Siphonostomatoida) symbiont of the sea star Nidorellia armata (Gray, 1840) (Echinodermata, Asteroidea) in the Eastern Tropical Pacific

Crustaceana ◽  
2021 ◽  
Vol 94 (9) ◽  
pp. 1071-1084
Author(s):  
C. Nahxieli Reyes-González ◽  
Eduardo Suárez-Morales
Keyword(s):  
New Species ◽  
Body Shape ◽  
Reproductive Traits ◽  
Tropical Pacific ◽  
Symbiotic Association ◽  
Sea Star ◽  
Eastern Tropical Pacific ◽  
Mexican Pacific ◽  
First Finding ◽  
A New Species

Abstract A new species of the diverse and widely distributed symbiotic copepod genus Asterocheres is described from the sea star Nidorellia armata (Gray, 1840) in Mexican waters of the Eastern Tropical Pacific. The new species resembles various other congeners by sharing several characters including: (1) a siphon extending to the intersection of the maxilliped, (2) a 21-segmented antennule, and (3) a 2-segmented mandible palp. It can be distinguished by the unique structure and ornamentation of the maxilla, the armature and proportions of the fifth leg, and its body shape. This is the first documented record of Asterocheres from the Mexican Pacific and the first finding of a symbiotic copepod on this sea star host. Males, ovigerous females and copepodites were recorded from the host, thus suggesting a well-established symbiotic association. It is likely that copepods feed on the host’s tegument. Further studies will be needed to assess the reproductive traits and seasonality of this copepod as a symbiont.

A new species of Mysidium (Peracarida: Mysida: Mysidae) from the eastern tropical Pacific

2016 ◽  
Vol 97 (1) ◽  
pp. 113-117
Author(s):  
Manuel Ortiz ◽  
Michel E. Hendrickx ◽  
Ignacio Winfield
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Tropical Pacific ◽  
The Other ◽  
Eastern Tropical Pacific ◽  
The Pacific ◽  
Appendix Masculina ◽  
The Pacific Ocean ◽  
A New Species

A new species of Mysidium from the eastern tropical Pacific, Mexico, is described, representing the second species of this genus described for the Pacific Ocean and the eighth species reported worldwide. Mysidium pumae sp. nov. is distinguished from the other species of the genus by several characters including: the lanceolate appendix masculina, 3× as long as wide, tapering distally, with a distal tuft of 16 setae and an inner proximal tuft of more than 30 setae, the male pleopod 4 with endopod bearing 3 setae, the exopod with 4 articles, the modified seta from article 3 of the exopod bifid, telson 2.3× as long as wide, distally concave. A table with the main differences among all the known species in the genus is provided.

scholarly journals A new Lepeophtheirus (Copepoda: Siphonostomatoida: Caligidae) from Isla del Coco National Park, Costa Rica, Eastern Tropical Pacific

2017 ◽  
pp. 235-242
Author(s):  
Eduardo Suárez-Morales ◽  
Rebeca Gasca
Keyword(s):  
New Species ◽  
Costa Rica ◽  
National Park ◽  
Relative Length ◽  
Tropical Pacific ◽  
Costa Rican ◽  
Tropical Region ◽  
Nominal Species ◽  
Eastern Tropical Pacific ◽  
Genital Complex

Among the several groups of copepods that are teleost parasites, the siphonostomatoid family Caligidae is by far the most widespread and diverse. With more than 108 nominal species, the caligid genus Lepeophtheirus von Nordmann is one of the most speciose. There are no reports of this genus in Costa Rican waters. A new species of Lepeophtheirus is herein described based on female specimens collected from plankton samples in waters off Bahía Wafer, isla del Coco, an oceanic island in the Eastern Tropical Pacific. The new species, L. alvaroi sp. nov., has some affinities with other congeners bearing a relatively short abdomen, a wider than long genital complex and a 3-segmented exopod of leg 4. it differs from most of these species by the presence of an unbranched maxillular process and by the relative lengths of the terminal claws of leg 4, with two equally long elements. it is most closely related to two other Eastern Pacific species: L. dissimulatus Wilson, 1905 and L. clarionensis Shiino, 1959. it differs from these species by the proportions and shape of the genital complex, the shape of the sternal furca, the relative length of the maxillar segments, the absence of a pectiniform process on the distal maxillar segment, the length of leg 4 and the armature of leg 5. The new species represents the first Lepeophtheirus described from Costa Rican waters of the Pacific. The low diversity of this genus in this tropical region is explained by its tendency to prefer hosts from temperate latitudes. Until further evidence is found, the host of this Lepeophtheirus species remains unknown. Citation: Suárez-Morales, E. & R. Gasca. 2012. A new Lepeophtheirus (Copepoda: Siphonostomatoida: Caligidae) from isla del Coco National Park, Costa Rica, Eastern Tropical Pacific. Rev. Biol. Trop. 60 (Suppl. 3): 235-242. Epub 2012 Dec 01.

New records of Rheumatobates Bergroth (Hemiptera: Heteroptera: Gerridae) from the Pacific coast of Colombia and Costa Rica, with a key to males of Rheumatobates in the Eastern Tropical Pacific

Zootaxa ◽  
2012 ◽  
Vol 3427 (1) ◽  
pp. 33 ◽  
Author(s):  
DORA N. PADILLA-GIL ◽  
BERNALD PACHECO-CHAVES
Keyword(s):  
Costa Rica ◽  
Pacific Coast ◽  
New Records ◽  
Tropical Pacific ◽  
Adult Males ◽  
Eastern Tropical Pacific ◽  
Ecological Data ◽  
The Pacific

Three species of the genus Rheumatobates, R. peculiaris, R. longisetosus, and R. probolicornis are recorded from the Pacific coast of Colombia, municipality of Tumaco (department of Nariño); and R. bergrothi is recorded from the Pacific coast of Costa Rica; the macropterous morph of R. longisetosus is described, ecological data are provided and it is included together with other four species in a key to adult males from Eastern Tropical Pacific; the male habitus for six species is illustrated.

scholarly journals Update on New Species and Record of Fishes in the Coral Triangle Region for the Last 10 Years (2008-2019)

2021 ◽  
Vol 6 (1) ◽  
pp. 59230
Author(s):  
Fione Yukita Yalindua ◽  
Teguh Peristiwady ◽  
Putri Saphira Ibrahim
Keyword(s):  
New Species ◽  
Papua New Guinea ◽  
New Record ◽  
New Records ◽  
New Guinea ◽  
The Philippines ◽  
Marine Biodiversity ◽  
Marine Biota ◽  
North Sulawesi ◽  
Discovery Research

Updated data is an essential requirement for carrying out research, planning, and policy briefs. The Coral reef triangle region is one of the areas with the highest diversity of marine biota and the discovery of new species in this area are increasing every year, much of this information is already available. However, most of the data is not available per region and is still scattered. This study aims to create a checklist and assessment of new species and a new record of fishes from this region over the last ten years based on several aspects, including species composition, pattern of distribution, endemicity, and depth using every source of the report and secondary literature data. The current new species and a new record of fish in the last decades combined consists of 360 species (268 new species and 92 new records). The most speciose group of family dominated by Gobiidae (93), followed by Labridae, Pomacentridae and Serranidae (18), Apogonidae (17), Dasyatidae (15), and the rest were ranged from 1-9 species per family. More than half of new species and new records are found in Indonesia, followed by the Philippines, Papua New Guinea, and Solomon Island. The result shows that cryptobenthic Families especially Gobiidae from genus Trimma and eviota are dominated the trend of new species and new record discovery and it is expected to rise over time while there will also be an emergence of some possibly new endemic species from major and rare families from the eastern part of Indonesia (West Papua and Papua New Guinea). Thus, the eastern part of Indonesia (Papua, Maluku, Aru Sea, and Papua New Guinea) and the northern part of Indonesia (North Sulawesi and Philippine) are suitable for exploration for marine biodiversity discovery research in the future.

Calcareous sponges (Porifera, Calcarea) from Florida: new species, new records and biogeographical affinities

Zootaxa ◽  
2018 ◽  
Vol 4526 (2) ◽  
pp. 127 ◽  
Author(s):  
MATHEUS V. LOPES ◽  
ANDRÉ PADUA ◽  
BÁSLAVI CÓNDOR-LUJÁN ◽  
MICHELLE KLAUTAU
Keyword(s):  
New Species ◽  
Geographical Distribution ◽  
New Records ◽  
Florida Keys ◽  
Morphological Plasticity ◽  
Morphological Characters ◽  
Marine Biodiversity ◽  
Calcareous Sponges ◽  
Distributional Patterns ◽  
New Diagnosis

Florida is among important marine biodiversity areas with high richness and endemism of marine taxa. Despite the economic and scientific importance of the region, knowledge on the diversity and distribution of some groups, such as calcareous sponges, is still reduced and scattered in old literature. In the present work, sponges collected in the Florida Keys were studied under an integrative perspective (traditional morphology and DNA: ITS). Three calcinean species were found: Clathrina smaragda sp. nov., C. lutea, and Ernstia rocasensis. Clathrina smaragda sp. nov. is the first Clathrina described with a green cormus. The occurrence of C. lutea in Florida was confirmed, and E. rocasensis had its geographical distribution widened from the Northeastern Brazilian waters to Florida, although Floridian individuals of this species have presented differences in morphological characters that resulted in the proposition of a new diagnosis and a discussion on morphological plasticity in Clathrinidae. A complete list of the calcareous sponges from Florida is presented and their distributional patterns are discussed. 

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