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

The visual pigments of a deep-water malacosteid fish

1989 ◽  
Vol 69 (1) ◽  
pp. 43-51 ◽  
Author(s):  
Frederick Crescitelli
Keyword(s):  
Deep Water ◽  
Visual Pigment ◽  
Southern California ◽  
Visual Pigments ◽  
Marine Fishes ◽  
Published Data ◽  
The Pacific ◽  
The Family

The present investigation is a confirmation and extension of the idea that visual pigments adapted to the quality of their own bioluminescence have evolved in certain deep-water marine fishes. In this case a single fish (Malacosteus danae) of the family Malacosteidae, known to have red-emitting photophores, was trawled up in daylight from the Pacific off the coast of Southern California. Retinal extractions were found to contain two photopigments with absorbance maxima, one at 556 nm, the second at 514 nm. From the spectral positions of the oximes formed by bleaching in the presence of hydroxylamine it was inferred that the 556-pigment is an A2-pigment and the 514-pigment, an Aj-pigment. Evidence was also obtained from the effect of hydroxylamine on the unbleached extract of the possible presence of a photopigment that was bleached by the daylight when the fish was brought to the surface. This pigment, also identified as an A,-component from the oxime spectrum, could have been a moiety of the 514-photopigment but the possibility of a third visual pigment in the retina of this fish cannot be discounted. Except for this hydroxylamine effect the results are in agreement with published data from Aristostomias scintillans.

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. 

scholarly journals A new subfamily for a clade of opecoelids (Trematoda: Digenea) exploiting marine fishes as second-intermediate hosts, with the first report of opecoelid metacercariae from an elasmobranch

2019 ◽  
Author(s):  
Storm Blas Martin ◽  
Abigail Jayne Downie ◽  
Thomas Herbert Cribb
Keyword(s):  
Ribosomal Dna ◽  
Internal Transcribed Spacer ◽  
Marine Fishes ◽  
Barrier Reef ◽  
Intermediate Hosts ◽  
Internal Transcribed Spacer Region ◽  
Epaulette Shark ◽  
The Family ◽  
Unidentified Species ◽  
Second Internal Transcribed Spacer

Abstract Metacercariae of trematodes belonging to the family Opecoelidae were collected from small fishes of the Great Barrier Reef: a blenniid, two gobiids, two labrids, three pomacentrids, a monacanthid, an ostraciid and the epaulette shark, Hemiscyllium ocellatum. Sequences of the second internal transcribed spacer region (ITS2) of ribosomal DNA were generated from these metacercariae in an attempt to match them with adult worms. Three species of Allopodocotyle (Allopodocotyle epinepheli, Allopodocotyle heronensis and an unidentified species), two unidentified species of Hamacreadium and Pacificreadium serrani were detected. Among the Opecoelidae, these species all resolve to a single, phylogenetically and somewhat morphologically distinct clade. Species of this clade are the only known marine opecoelids to exploit fishes as second-intermediate hosts. The clade is proposed to warrant a new subfamily, the Hamacreadiinae subfam. nov. It includes Allopodocotyle, Bentholebouria, Cainocreadium, Choanotrema, Hamacreadium, Pacificreadium, Paraplagioporus, Pedunculacetabulum and Podocotyloides.

Copepods of the family Chondracanthidae (Cyclopoida) parasitic on South African marine fishes

Parasitology ◽  
1972 ◽  
Vol 65 (1) ◽  
pp. 147-158 ◽  
Author(s):  
Ju-Shey Ho
Keyword(s):  
New Species ◽  
South African ◽  
Marine Fishes ◽  
Parasitic Copepods ◽  
The Family ◽  
A New Species

Six species of South African parasitic copepods belonging to the family Chondracanthidae were restudied. A redescription was given of Acanthochondria lepidionis, Ghondracanthus colligens and Ch. neali. Ch. lophii reported by Barnard (1955a) is actually a new species; it was named Ch. barnardi and redescribed. Ch. congiopodi Barnard, 1955, is conspecific with Ch. tuberculatus Nordmann, 1832. A redescription of this species was given based on Barnard's collection. Ch. merluccii was only mentioned and not redescribed.

Gonad-infecting philometrid Philometra philippinensis sp. nov. (Nematoda, Philometridae) from the bigeye barracuda Sphyraena forsteri Cuvier (Sphyraenidae) off Mariveles, Bataan Province, Philippine archipelago

2013 ◽  
Vol 58 (4) ◽  
Author(s):  
Karl Quiazon ◽  
Tomoyoshi Yoshinaga
Keyword(s):  
New Species ◽  
Small Subunit ◽  
Marine Fishes ◽  
The West ◽  
The Third ◽  
The Family ◽  
West Philippine Sea ◽  
Small Subunit Ribosomal Dna ◽  
A New Species ◽  
Parasitological Study

AbstractWe conducted a parasitological study to identify nematodes infecting the gonads of bigeye barracuda Sphyraena forsteri Cuvier (Sphyraenidae) caught in the West Philippine Sea, off the Mariveles coast, Bataan Province, the Philippine archipelago. Males and very tiny nongravid female philometrid nematodes were collected from the ovaries of the fish. Based on light and scanning electron microscope observations, and supported by molecular analyses of the partial nucleotide sequences of the 18S small subunit ribosomal DNA, the philometrid nematode was determined to be a new species belonging to the genus Philometra Costa, 1845 in the family Philometridae (Nematoda: Dracunculoidea), and was named P. philippinensis sp. nov. This new species was clearly distinguishable morphologically from other congeners that parasitize the gonads of marine fishes. Males have unique sickle-shaped spicules and gubernaculum, and a vulva-like cloacal opening. Following Dentirumai philippinensis Quiazon et Moravec, 2013 and Philometra robusta Moravec, Möller et Heeger, 1992, this is the third philometrid species and the first gonad-infecting philometrid from the Philippine archipelago.

Two cystidicolids (Nematoda, Cystidicolidae) from marine fishes off New Caledonia

2009 ◽  
Vol 54 (4) ◽  
Author(s):  
František Moravec ◽  
Jean-Lou Justine
Keyword(s):  
Electron Microscopy ◽  
New Caledonia ◽  
Host Record ◽  
Nematode Species ◽  
Marine Fishes ◽  
New Host ◽  
New Host Record ◽  
New Subgenus ◽  
The Family ◽  
Scanning Electron

AbstractTwo nematode species of the family Cystidicolidae were collected from the digestive tract of marine fishes off New Caledonia, South Pacific: Ascarophis adioryx Machida, 1981 from the stomach of the speckled squirrelfish Sargocentron spiniferum and the sabre squirrelfish Neoniphon sammara (new host record) (both Holocentridae, Beryciformes), and a Spinitectus sp. female, morphologically similar to S. beaveri Overstreet, 1970, from the roundjaw bonefish Albula glossodonta (Albulidae, Albuliformes). Based on light and scanning electron microscopy examinations, A. adioryx is redescribed and a new subgenus Dentiascarophis subgen. nov., characterized by the presence of one dorsal and one ventral median protrusions in the mouth, is established to accommodate it; a key to subgenera of Ascarophis is provided. Ascarophis holocentri Parukhin, 1984 is considered a junior synonym of A. adioryx. The cephalic structure of Spinitectus sp. and S. beaveri is very different from those in other congeners and, therefore, a new subgenus Paraspinitectus subgen. nov., characterized by highly reduced pseudolabia, is erected to accommodate these species. The hemiurid digenean Lecithochirium cirrhiti (Manter et Pritchard, 1960) Yamaguti,1970 was found in the stomach of three species of squirrelfishes. Findings of A. (D.) adioryx, Spinitectus (P.) sp. and L. cirrhiti in New Caledonian waters represent new geographical records of these parasites.

Three species of Philometra (Nematoda, Philometridae) from marine fishes off Corsica, France

2006 ◽  
Vol 51 (2) ◽  
Author(s):  
František Moravec ◽  
Sonia Ternengo ◽  
Céline Levron
Keyword(s):  
Body Length ◽  
Mediterranean Region ◽  
Marine Reserve ◽  
Abdominal Cavity ◽  
Gravid Female ◽  
Marine Fishes ◽  
Nematode Genus ◽  
The Family ◽  
Mullus Surmuletus ◽  
First Time

AbstractGravid or subgravid females of the following three species belonging to the nematode genus Philometra were collected from marine perciform fishes of the Bonifacio Strait Marine Reserve, Corsica, France: Philometra justinei sp. nov. (prevalence 1.5%, intensity 11) and Philometra sp. (prevalence 3%, intensity 2) from the abdominal cavity and gonads, respectively, of the striped red mullet Mullus surmuletus (Mullidae), and Philometra serranellicabrillae Janiszewska, 1949 (prevalence 27%, intensity 2–6) from the gonads of the comber Serranus cabrilla (Serranidae). The newly described species, P. justinei, is mainly characterized by the absence of an anterior bulbous inflation of the oesophagus, body length of the gravid female (196 mm), conspicuously large amphids, number and distribution of cephalic papillae, and the morphology of larvae. It is the second known species of Philometra parasitizing fishes of the family Mullidae and the ninth species of this genus reported from marine fishes of the Mediterranean region. P. serranellicabrillae, studied for the first time by SEM, is redescribed.

scholarly journals Rhabdom evolution in butterflies: insights from the uniquely tiered and heterogeneous ommatidia of the Glacial Apollo butterfly, Parnassius glacialis

2012 ◽  
Vol 279 (1742) ◽  
pp. 3482-3490 ◽  
Author(s):  
Atsuko Matsushita ◽  
Hiroko Awata ◽  
Motohiro Wakakuwa ◽  
Shin-ya Takemura ◽  
Kentaro Arikawa
Keyword(s):  
Colour Vision ◽  
Wavelength Region ◽  
Visual Pigments ◽  
Interspecific Comparison ◽  
Motion Vision ◽  
Fossil Species ◽  
Living Fossil ◽  
Long Wavelength ◽  
The Family ◽  
Apollo Butterfly

The eye of the Glacial Apollo butterfly, Parnassius glacialis , a ‘living fossil’ species of the family Papilionidae, contains three types of spectrally heterogeneous ommatidia. Electron microscopy reveals that the Apollo rhabdom is tiered. The distal tier is composed exclusively of photoreceptors expressing opsins of ultraviolet or blue-absorbing visual pigments, and the proximal tier consists of photoreceptors expressing opsins of green or red-absorbing visual pigments. This organization is unique because the distal tier of other known butterflies contains two green-sensitive photoreceptors, which probably function in improving spatial and/or motion vision. Interspecific comparison suggests that the Apollo rhabdom retains an ancestral tiered pattern with some modification to enhance its colour vision towards the long-wavelength region of the spectrum.

Copepods of the Family Chondracanthidae Parasitic on Australian Marine Fishes

1988 ◽  
Vol 36 (3) ◽  
pp. 273 ◽  
Author(s):  
JS Ho ◽  
M Dojiri
Keyword(s):  
Marine Fishes ◽  
South Australian Museum ◽  
The South ◽  
Australian Museum ◽  
The Family ◽  
Arafura Sea

Three species of chondracanthid copepods are described from Australian marine fishes. They are Acanthochondria diastema Kabata, 1965 from Platycephalus sp.; Lagochondria nana gen. & sp. nov. from Callionymus sp.; and Apodochondria medusae gen. & sp. nov. from Neosebastes pandus. The first and last species were found in the collection of the South Australian Museum and the second species was collected from the Arafura Sea.

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