Two new species of Tigriopus Norman, 1869 from Chonburi Province, Thailand (Crustacea: Copepoda: Harpacticidae)

Zootaxa ◽  
2021 ◽  
Vol 5051 (1) ◽  
pp. 41-67
Author(s):  
SUPAWADEE CHULLASORN ◽  
PAWANA KANGTIA ◽  
SUNG JOON SONG ◽  
JONG SEONG KHIM
Keyword(s):  
New Species ◽  
Valid Species ◽  
Apical Segment ◽  
The South ◽  
The North ◽  
Worldwide Distribution ◽  
South Indian ◽  
The Pacific ◽  
Two New Species ◽  
The Pacific Ocean

Two new species of the family Harpacticidae Dana, 1846, Tigriopus namsaiensis sp. nov. and T. wannapaensis sp. nov. were found in algal washings at Namsai and Wannapa beaches in Chonburi Province, Thailand. There are currently 14 known species in the genus, two of which, T. thailandensis Chullasorn, Ivanenko, Dahms, Kangtia & Yang, 2012 and T. sirindhornae Chullasorn, Dahms & Klangsin, 2013 were also discovered in Thailand. The genus Tigriopus Norman, 1869 has a worldwide distribution with nine species recorded from the Pacific Ocean (seven in the North Pacific and two in the South Pacific), four species from the Atlantic and adjacent seas, two species from the South Indian Ocean, and one species from Antarctica.                 Sexual dimorphism is expressed in the antennule, antenna, P2, P5, P6, and segmentation of the urosome. Tigriopus namsaiensis sp. nov. and T. wannapaensis sp. nov. are closely related to T. thailandensis and T. sirindhornae in sharing the following characters: fewer sensilla on the prosome; antennary exopod with one seta on exp-2; P4 exp-3 with two inner setae; female P5 baseoendopod with five setae; male P2 enp-2 with a seta fused to the segment; and male P5 exopod with five setae.                 Tigriopus namsaiensis sp. nov. closely resembles T. thailandensis, but the new species is characterized by four setae on the maxillulary coxa (three setae in T. thailandensis), the outermost seta on the female P6 is plumose (instead of the middle one), the lateral seta on the apical segment of the antennary exopod is discrete at the base (instead of fused to the segment), and the outermost seta of the male P5 exopod is plumose (instead of spinulose).                 Tigriopus wannapaensis sp. nov. is very closely related to T. sirindhornae, but the new species differs from the latter by the following characteristics: 2-segmented mandibular exopod (3-segmented in T. sirindhornae); five setae on the maxillulary coxa (instead of three); all setae on female P6 are plumose (instead of two plumose and one pinnate); the lateral seta on the apical segment of the antennary exopod is fused to the segment (instead of discrete at the base); and the outermost seta on the male P5 exopod is plumose (instead of spinulose).                 A dichotomous identification key to the 16 valid species of Tigriopus is provided.  

scholarly journals Two new species of Microcotyle (Monogenea: Microcotylidae) on intertidal fish from the south Pacific coast

2020 ◽  
Vol 54 (3) ◽  
pp. 283
Author(s):  
Gabriela Muñoz ◽  
Mario George-Nascimento
Keyword(s):  
New Species ◽  
Pacific Coast ◽  
Valid Species ◽  
Base Pairs ◽  
Central Chile ◽  
South Central ◽  
The Pacific ◽  
The Family ◽  
Two New Species ◽  
Intertidal Fish

Microcotyle is one of the most diverse and controversial genera within the family Microcotylidae. To date, 131 species have been described in Microcotyle; however, more than half have been transferred to other genera, and several others have poor descriptions. Therefore, less than half of all Microcotyle species may be considered valid. In Chile, two species have been recognized, and unidentified Microcotyle have been found on several littoral fish, but there has been no effort to properly identify them. In this study, two new species of Microcotyle are taxonomically described from intertidal fish of the central (33°S) and south-central (36°S) regions of Chile. In this study, Microcotyle sprostonae n. sp. (collected mainly from Scartichthys viridis in central Chile) and M. chilensis n. sp. (collected mainly from Calliclinus geniguttatus in south-central Chile) were identified based on morphological and molecular analyses (ITS2 and 18S genes). Both species of Microcotyle principally differed from one another and from other valid species in the number of testes and clamps. The two new species also differed from one another by one base pair in the ITS2 and 18S genes and differed from other species of Microcotyle by several base pairs of both genes. Intertidal fish are mostly endemic to the Pacific coast of South America, and they have a limited geographical distribution that does not overlap with the type hosts of other Microcotyle species. Therefore, the two new species described here are distinguished from other congeneric species by morphological, genetic, and biological characteristics.

scholarly journals The state of mental health in the Philippines

2004 ◽  
Vol 1 (6) ◽  
pp. 8-11 ◽  
Author(s):  
Udgardo Juan L. Tolentino
Keyword(s):  
Mental Health ◽  
South China Sea ◽  
South China ◽  
The Philippines ◽  
Land Area ◽  
The South ◽  
The West ◽  
The North ◽  
The Pacific ◽  
The Pacific Ocean

The Philippines, known as the Pearl of the Orient, is an archipelago of 7107 islands, bounded on the west by the South China Sea, on the east by the Pacific Ocean, on the south by the Sulu and Celebes Sea, and on the north by the Bashi Channel. The northernmost islands are about 240 km south of Taiwan and the southernmost islands approximately 24 km from Borneo. The country has a total land area of some 300 000 km2. It is divided into three geographical areas: Luzon, Visayas and Mindanao. It has 17 regions, 79 provinces, 115 cities, 1495 municipalities and 41 956 barangays (the smallest geographic and political unit). It has over 100 ethnic groups and a myriad of foreign influences (including Malay, Chinese, Spanish and American).

A new species of Aegidium Arrow (Coleoptera: Scarabaeidae: Orphninae) from Colombia

Zootaxa ◽  
2021 ◽  
Vol 4927 (4) ◽  
pp. 583-586
Author(s):  
ANDREY V. FROLOV ◽  
LILIA A. AKHMETOVA
Keyword(s):  
New Species ◽  
Neotropical Region ◽  
Valid Species ◽  
The South ◽  
Southern Mexico ◽  
The North ◽  
A New Species

In the Neotropical Region, Orphninae (Coleoptera: Scarabaeidae) are represented by the endemic tribe Aegidiini, which comprises five genera and 49 species (Paulian 1948; Colby 2009; Frolov & Vaz-de-Mello 2015; Frolov et al. 2017a, 2017b, 2017c, 2019). Aegidium Westwood is the largest genus of the tribe and it comprises 24 valid species known from the southern Mexico in the north to Central Bolivia in the south (Frolov et al. 2015; Rojkoff & Frolov 2017; Frolov & Akhmetova 2020). 

Description of two new species of munnopsid isopods (Crustacea: Isopoda: Asellota) from manganese nodules area of the Clarion-Clipperton Fracture Zone, Pacific Ocean

Zootaxa ◽  
2011 ◽  
Vol 2783 (1) ◽  
pp. 1 ◽  
Author(s):  
MARINA V. MALYUTINA
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Fracture Zone ◽  
Similar Species ◽  
Manganese Nodules ◽  
The Pacific ◽  
Clipperton Fracture Zone ◽  
Two New Species ◽  
The Pacific Ocean ◽  
Clarion Clipperton Fracture Zone

Two new species of deep sea asellotes of the family Munnopsidae, Rectisura slavai sp. nov. and Storthyngura yuzhmorgeo sp. nov. are described from the manganese nodules area in the Clarion-Clipperton Fracture Zone of the Pacific Ocean. The discovery of these new species allowed re-examination of the taxonomic position of two similar species, Storthyngura ? intermedia (Beddard, 1885) from the Northeastern Basin of the Pacific Ocean and Ilyarachna defecta Menzies & George, 1972 from the Peru-Chile Trench, eastern Pacific Ocean. The species are moved to the genera Rectisura Malyutina, 2003 and Storthyngura Vanhöffen, 1914, respectively. Additional composition and distribution of the species of the genera are presented.

Two new species of Photonectes with blue luminous tissue on body, and a re-examination of P. mirabilis (Teleostei: Stomiidae)

Zootaxa ◽  
2019 ◽  
Vol 4590 (2) ◽  
pp. 270 ◽  
Author(s):  
ARTEM M. PROKOFIEV ◽  
CYNTHIA KLEPADLO
Keyword(s):  
New Species ◽  
The Body ◽  
The Other ◽  
Central Pacific ◽  
The Pacific ◽  
Two New Species ◽  
Unique Shape ◽  
The Pacific Ocean ◽  
Terminal Appendage ◽  
Large Spherical

Two new species of the mesopelagic genus Photonectes are described from the Pacific Ocean. Both of them are characterized by the presence of blue luminous tissue on the body. Photonectes cyanogrammicus new species, is characterized by the unique shape of the mental barbel, expanded distally and lacking bulbs or appendages. It is presently known only from the holotype collected in the Solomon Sea. Photonectes sphaerolampas new species, is described from four specimens collected in the western and central Pacific. It can be easily distinguished from the other species by the presence of the large spherical bulb of the mental barbel with darkly pigmented terminal appendage, split at its tip into several short filaments. Photonectes mirabilis Parr, 1927 is re-described, based on four specimens from the Atlantic and Pacific Oceans; details of jaw dentition and arrangement of the luminous tissue for this species are specified. A key for identification of the species of Photonectes with blue luminous tissue on the body is provided.

Description of two new species of Hetereleotris (Gobiidae) from the south Pacific, with a revised key to species and synonymization of the genus Pascua with Hetereleotris

Zootaxa ◽  
2005 ◽  
Vol 1096 (1) ◽  
pp. 1 ◽  
Author(s):  
DOUGLASS F. HOESE ◽  
HELEN K. LARSON
Keyword(s):  
New Species ◽  
South Pacific ◽  
Easter Island ◽  
The South ◽  
Southeastern Australia ◽  
Island Species ◽  
Posterior Nostril ◽  
The Pacific ◽  
Two New Species ◽  
Urogenital Papilla

Two new species of the genus Hetereleotris are described from the south Pacific. One species is known only from reefs off southeastern Australia and the second from Rapa and Pitcairn islands. Both species are close to a species recently described from Easter Island in the genus Pascua. The Easter Island species is redescribed herein. Previously only one species of the genus was reported from the Pacific. All of the species described here share a number of characteristics suggesting that they form a monophyletic group, including: the flattened and elongate urogenital papilla of the males, modified basicaudal scales, posterior nostril a simple pore or with only a slightly elevated margin anteriorly, two papillae just behind the mental frenum and the reduced transverse papilla pattern.

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