Parasitic isopods of the family Cymothoidae from south Indian fishes

Parasitology ◽  
1964 ◽  
Vol 54 (2) ◽  
pp. 211-223 ◽  
Author(s):  
N. Krishna Pillai
Keyword(s):  
Marine Fishes ◽  
Brood Pouch ◽  
Preliminary Diagnosis ◽  
Larval Stages ◽  
Kerala Coast ◽  
South Indian ◽  
The Family ◽  
Parasitic Isopods

In the present paper seven species of cymothoid isopods parasitic on the marine fishes of the Kerala coast are described. A preliminary diagnosis of three of them was published earlier (Pillai, 1954). Full descriptions of all the species are given below. The larval stages described were in all cases taken from the brood pouch. The present work forms part of a thesis for which the author was awarded the Ph.D. Degree by the Kerala University.

The first fossil record of larval stages of parasitic isopods: cryptoniscus larvae preserved in Miocene amber

2016 ◽  
Vol 279 (1) ◽  
pp. 97-106 ◽  
Author(s):  
María de Lourdes Serrano-Sánchez ◽  
Christina Nagler ◽  
Carolin Haug ◽  
Joachim T. Haug ◽  
Elena Centeno-García ◽  
...  
Keyword(s):  
Fossil Record ◽  
Larval Stages ◽  
Parasitic Isopods

Larval development of Metapenaeopsis barbata (de Haan, 1844) (Crustacea: Decapoda: Penaeidae)

1997 ◽  
Vol 48 (5) ◽  
pp. 401 ◽  
Author(s):  
Jesse D. Ronquillo ◽  
Toshio Saisho
Keyword(s):  
Morphological Characteristics ◽  
Larval Feeding ◽  
Feeding Apparatus ◽  
Filter Feeder ◽  
Closely Related Species ◽  
Larval Stages ◽  
Chaetoceros Gracilis ◽  
The Family ◽  
Gravid Females ◽  
Natural Means

Gravid females of Metapenaeopsis barbata spawned in the laboratory by natural means and the larvae were reared from hatching to postlarval stage at 27·0–29·8˚C and 33·5–34·5 g kg -1 salinity. The larvae metamorphosed into first postlarvae, with a survival rate of up to 98·4%, after about 10 days following hatching and subsistence on only an algal diet of Tetraselmis tetrathele and Chaetoceros gracilis. Six naupliar stages, three protozoeal stages, three mysis stages and the first postlarval stage are described and illustrated. On the basis of morphological characteristics, larval stages of M. barbata can be distinguished from similar stages of closely related species in the family Penaeidae. As inferred from the morphology of the larval feeding apparatus, M. barbata is still a filter-feeder even at the first postlarval stage.

Species diversity and genetic variation of caligids (Copepoda: Siphonostomatoida) infecting the marine fishes of Kerala coast, India

2021 ◽  
Vol 52 (1) ◽  
Author(s):  
MV Nikhila Reshmi ◽  
K Rijin ◽  
OK Drisya ◽  
TA Jose Priya ◽  
Sudha Kappalli
Keyword(s):  
Genetic Variation ◽  
Species Diversity ◽  
Marine Fishes ◽  
Kerala Coast

scholarly journals Radical freedom: Periyar and women

2021 ◽  
Vol 1 ◽  
pp. 6
Author(s):  
Karthick Ram Manoharan
Keyword(s):  
Child Rearing ◽  
Social Reformer ◽  
Economic Equality ◽  
The West ◽  
Sexual Freedom ◽  
Radical Feminist ◽  
South Indian ◽  
Child Bearing ◽  
The Family ◽  
Radical Freedom

This paper looks at South Indian social reformer and anti-caste radical Periyar E.V. Ramasamy's approach to the women's question. Periyar was not just an advocate of social and economic equality between the sexes but espoused a radical concept of sexual freedom for women, which is central to his concept of liberty as such. While the anti-colonialists of his period defended native traditions and customs, Periyar welcomed modernity and saw it laden with possibilities for the emancipation of women. Likewise, where other social reformers addressed the women's question within the ambit of the nation and/or the family, Periyar saw both nation and family as institutions that limited the liberties of women. This paper compares his thoughts with The Dialectic of Sex, the key work of the radical feminist Shulamith Firestone, and highlights the similarities in their approach to women's liberation and sexual freedom, especially their critique of child-rearing and child-bearing. It explores Periyar's booklet Women Enslaved in detail and engages with lesser known, new primary material of Periyar on the women's question, concluding with a discussion of his perspective of the West.

A taxonomic review of the fish parasitic isopod family Cymothoidae Leach, 1818 (Crustacea: Isopoda: Cymothooidea) of India

Zootaxa ◽  
2019 ◽  
Vol 4622 (1) ◽  
pp. 1-99 ◽  
Author(s):  
S. RAVICHANDRAN ◽  
P. VIGNESHWARAN ◽  
G. RAMESHKUMAR
Keyword(s):  
Morphological Variability ◽  
Marine Fishes ◽  
Valid Species ◽  
Indian Species ◽  
Nominal Species ◽  
Host Preferences ◽  
As Species ◽  
The Family ◽  
Species Inquirenda ◽  
Parasitic Isopod

The parasitic isopod family Cymothoidae Leach, 1818 of the India exclusive economic zone is reviewed. A total of 56 nominal species corresponding to 48 valid species belonging to sixteen genera are reviewed from 73 host species belonging to 35 families. Mothocya plagulophora (Haller, 1880), Nerocila depressa Milne Edwards, 1840, Nerocila loveni Bovallius, 1887, Nerocila trichiura (Miers, 1877), Norileca triangulata (Richardson, 1910) and Ryukyua globosa Williams & Bunkley-Williams, 1994 are redescribed. Indusa pustulosa Pillai, 1954 is synonymised with Agarna malayi Tiwari, 1952; Cymothoa krishnai Jayadev Babu & Sanjeeva Raj, 1984 is synonymised with Cymothoa eremita (Brünnich, 1783) and Nerocila priacanthusi Kumari, Rao & Shyamasundari, 1987 is synonymised with Nerocila arres Bowman & Tareen, 1983. Ourozeuktes bopyroides (Lesueur, 1814) is revised and excluded from the Indian fauna. The Indian cymothoid species Agarna bengalensis Kumari, Rao & Shaymasundari, 1990, Cymothoa asymmetrica Pillai, 1954 and Nerocila hemirhamphusi Shyamasundari, Rao & Kumari, 1990 are regarded here as species inquirenda. A key to the Indian genera of the family Cymothoidae and keys to the Indian species of the genera Cymothoa, Joryma, Mothocya, and Nerocila are presented. A checklist of the valid Cymothoidae species until now reported from Indian marine fishes are compiled. Host preferences, morphological variability and distribution are discussed. 

The complete description of larval stages of the lobster shrimpLeonardsaxius amurensis(Kobjakova, 1937) (Decapoda: Axiidea: Axiidae) identified by DNA barcoding

2017 ◽  
Vol 98 (6) ◽  
pp. 1435-1453 ◽  
Author(s):  
Elena S. Kornienko ◽  
Darya D. Golubinskaya ◽  
Olga M. Korn ◽  
Svetlana N. Sharina
Keyword(s):  
Larval Development ◽  
Sequence Data ◽  
Molecular Genetic ◽  
Sympatric Species ◽  
Molecular Genetic Analysis ◽  
Mitochondrial Coi ◽  
Larval Stages ◽  
The Family ◽  
Rdna Sequence Data ◽  
First Time

The complete larval development of the lobster shrimpLeonardsaxius amurensis(Kobjakova, 1937) (Decapoda: Axiidea: Axiidae) is described and illustrated for the first time. The first zoeae of this species were collected from the plankton samples and reared in the laboratory before moulting to the megalopa. A molecular genetic analysis based on comparison of partial mitochondrial COI, 12S rDNA and 16S rDNA sequence data confirmed the identity of axiid larvae found in the plankton andL. amurensisadults collected in the same area. The larval development ofL. amurensisincludes five zoeal stages and a single megalopa. Zoeae I ofL. amurensisare characterized by the presence of one short posterodorsal spine on the fifth pleonite in contrast to the larvae of related sympatric speciesBoasaxius princepshaving four posterodorsal spines on the pleonites 2–5.Leonardsaxius amurensisoccupies an intermediate position between lobster shrimps with abbreviated pelagic development (2–3 zoeal stages) and species with long development (up to eight zoeal stages). Thus, the number of zoeal stages in the family Axiidae varies widely, similarly to that in the families Callianassidae and Upogebiidae.

Ultraviolet visual pigments in marine fishes of the family pomacentridae

1994 ◽  
Vol 34 (11) ◽  
pp. 1393-1396 ◽  
Author(s):  
William N. McFarland ◽  
Ellis R. Loew
Keyword(s):  
Visual Pigments ◽  
Marine Fishes ◽  
The Family

Changes in the South Indian Hindu Family Structure in West Malaysia

1982 ◽  
Vol 10 (1) ◽  
pp. 90-97
Author(s):  
K.S. Susan Oorjitham
Keyword(s):  
Working Class ◽  
Family Structure ◽  
Urban Environment ◽  
South India ◽  
Family Values ◽  
Family Structures ◽  
Indian Family ◽  
South Indian ◽  
The Family ◽  
Conducive Environment

AbstractThe largest group of Indians in West Malaysia are the Tamil-speaking Hindus who originate from South India, particularly from Tamilnad. According to S. Arasaratnam, not only are 80% of Indians in Malaysia Tamil speakers but a vast majority of them are also Hindus.1 It is further established that the majority of this group are members of the working class, either in the plantation or in the urban sectors. The family structures of these Tamil working-class families originate basically from the traditional Indian family structure of India. This traditional Indian family structure was maintained in the "conducive" environment of ethnic isolation, found in the plantations. Since my purpose is to study changes in the family structure, Tamil working-class families in an urban environment were selected. It is expected that some changes in family values and structures have occurred among this group of Indians in West Malaysia.

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