New species of Caromiobenella Jeon, Lee Soh, 2018 (Crustacea, Copepoda, Monstrilloida) from Chuja Island, Korea

Male monstrilloid copepods belonging to the genus Caromiobenella Jeon, Lee Soh, 2018 were collected from Chuja Island, Jeju, Korea, using a light trap. This paper describes a new species, Caromiobenella ohtsukai sp. n., based on the display of reduced, knob-like fifth legs on the ventral side of the first urosomal somite. A unique combination of male genitalia features and number of caudal setae further confirms its specificity. Molecular analysis based on two partial gene sequences of mitochondrial cytochrome c oxidase subunit I (mtCOI) and 28S ribosomal RNA (28S rRNA) also supports the designation of this species by showing a relevant divergence from known congeners. Caromiobenella ohtsukai sp. n. is the ninth member of this genus and also the ninth monstrilloid reported from Korea.We thank Dr Min Ho Seo (Marine Ecology Research Center, Korea) for providing the monstrilloid specimens from Chuja Island. We are also grateful to Drs Danielle Defaye (Museum national d'Histoire naturelle, France), Damia Jaume (Mediterranean Institute for Advanced Studies, Spain) and the anonymous reviewer for providing valuable comments, advice, and kind corrections to the English which overall improved the quality of the manuscript. This research was supported by the Marine Biotechnology Program of the Korea Institute of Marine Science and Technology Promotion (KIMST) funded by the Ministry of Oceans and Fisheries (MOF) (No. 20170431). Wonchoel Lee was supported by a grant from the National Research Foundation of Korea (NRF, NRF grant no. 2018R1D1A1B07050117)

Review on Systematic of Calanoid Copepod (Crustacea) from Seagrass and Coral Areas of the East Coast of the Malay Peninsula

A study has been carried out on the systematic of calanoid copepod from samples taken off sea grass and coral area in East Coast of Peninsular Malaysia. The material examined was taken from various samples collected since 1990 until 1997 in Pulau Sibu, Pulau Besar, Pulau Redang and Pulau Bidong. Thirty-four species representing 16 genera and 12 families were described and illustrated. Six species are new record for Malaysian coastal water. They are Subeucalanus crassus, S. subcrassus, S. pileatus, Labidocera kroeyeri, Centro pages yamadai and Bestiolina similis. Subeucalanus is a new record for genus. This study also found that the species Centropages yamadai is also new to Indo Pacific region. This study also reviewed the systematic and distribution of calanoid copepod in Malaysian waters based on published and unpublished literatures. Misidentification and misuse of species names in the literature have been corrected where possible

Macroevolutionary patterns of sexual size dimorphism in copepods

The Centre for Ocean Life is a VKR Centre of Excellence funded by the Villum Foundatio

Studies on Indian copepods 13. Brief notes on the asterocherid copepods obtained from the southeast coast of India with description of Indomyzon qasimi N. gen. & N. sp. and a discussion of the family Asterocheridae

During the course of a study on the littoral and planktonic copepods of the south east coast of India several species belonging to Asterocheridae (Cyclopoida, Copepoda) were gathered, mostly in association with other invertebrates and weeds. The present communication intends to give brief accounts of these species and includes the description of Indomyzon qa.rimi n. gen., n. sp. Indomyzon shares many structural similarities with Cletopontius Thompson & Scott. Though there is little doubt that they are both asterocherids, these two genera together exhibit a pattern of ornamentation of the swimming legs different from other astero- cherids. It is proposed, therefore, to split up the family Asterocheridae Giesbrecht (sens. str.) into two subfamilies: Cletopontiinae nov. to include Cletopontiu,r and Indomyzon and Asterocherinae to contain the remaining genera

Five new coexisting species of copepod crustaceans of the genus Spaniomolgus (Poecilostomatoida: Rhynchomolgidae), symbionts of the stony coral Stylophorapistillata (Scleractinia)

Spaniomolgus is a symbiotic genus of copepods of the poecilostomatoid family Rhynchomolgidae and is known to be associated with shallow-water reef-building hermatypic corals. Three species of this genus were previously found only in washings of Acropora and Stylophora in northern Madagascar. Four coral morphotypes of Stylophorapistillata (Pocilloporidae) were collected by SCUBA at 1 to 28 m depth in five sites in the Saudi Arabian Red Sea in 2013. Copepods found on these colonies were studied using light, confocal and scanning electron microscopy. Five new, and one known, species of the genus Spaniomolgus were discovered in washings and inside the galls of the hermatypic coral S.pistillata. The description of these new species (Spaniomolgusglobussp. n., S.stylophorussp. n., S.dentatussp. n., S.maculatussp. n., and S.acutussp. n.) and a key for the identification of all of its congeners is provided herein

Spratelloides delicatulus (Bennet) as a potential live-bait for tuna in the Laccadives.

TUNA fishing on an organised scale exists only in Minicoy among the islands of the Laccadive Archipelago (Jones & Kumaran 1959). Though the oceanic skipjack, Katsuwonus pelamis is widely distributed in the Laccadive Sea, a fishery for it is non-existent in any of the other islands. One of the reasons attributed for this is the absence of suitable baitflsh in the lagoons of these islands while the Minicoy Lagoon abounds in a variety of small fishes which are caught and utilised for the purpose (Jones 1958)

Studies on Indian copepods 13. Description on an antotrogid copepod Sewellopontius rectiaugulus N. gen., N. sp.

Eiselt (1962) has recently advocated the abolition of the siphonostomatous fami- lies Dyspontiidae Sars, 1915, and Myzopontiidae Sars, 1915, and the merger of the genera which belonged to these families with the Artotrogidae Brady, 1880. As Eiselt pointed out the delimitations between these families are quite inadequate, and there is in fact some amount of gradation between the different genera which were split up into three separate families by Sars (1915). The family Artotrogidae as defined by Eiselt is relatively a coherent group and comprises fifteen genera. SewellopontiuJ n. gen. represents the sixteenth genus and is probably the third artotrogid genus to be recorded from Indian waters

A review of the zooplankton in Singapore waters

24 pages, 1 figure, 2 tablesThe island of Singapore is located between 1°09'N¿1°29'N and 103°38'E¿104°06'E at the confluence of the Malacca Straits and the South China Sea. To date, both the marine and freshwater zooplanktons of this area are poorly studied, and availability of taxonomic identification is scarce. Moreover, most of the studies were published between the 1950s to the beginning of the 1970s. The available data are mainly qualitative, with only a few studies on zooplankton biology and ecology. Here, the literature on zooplankton communities in Singapore waters is reviewed in order to provide a baseline for future zooplankton surveys, and to better understand the aquatic ecosystems of this area. Also included are recent data obtained from a one-year plankton monitoring in 2012 from two marine stations in Singapore. The temporal variation of the plankton groups was observed in the study to be similar to what was described in some works from the 1970s. The species richness increased in these more recent studies, probably due to changes in the sampling and preservation methods. Because of these changes, comparing between data-sets is challenging; however, similarities in species richness and seasonality between a recent study and previous data-sets were evident. Finally, it is argued that continuous marine plankton monitoring would be an asset for Singapore and the regionThe authors would like to thanks the National Parks of Singapore, the DHI-NTU Research Centre for the financial support of project MadeInPlankton, where the present study is framed. The work was also supported by Elite Forsk grants nb 10-093759 and 10-094773 from the Danish Agency for Science Technology and Innovation to GD, and by project PROTOS (CTM2009-08783) from the Spanish Ministry of Science and Innovation to ACPeer Reviewe