Underwater observations on a rare Caribbean fish, Labrisomus filamentosus (Labrisomidae) in Barbados, W.I.

1981 ◽  
Vol 59 (8) ◽  
pp. 1625-1629 ◽  
Author(s):  
Alan R. Emery ◽  
Marc Labelle
Keyword(s):  
Fish Habitat ◽  
Anterior Portion ◽  
Dorsal Fin ◽  
Barrier Reefs ◽  
Made In

Labrisomus filamentosus Springer, 1959 was previously known from the holotype and three specimens, and considered to be a deep-dwelling species (35–100 m). Observations were made in Barbados at much shallower depths (12–16 m) of large adults which were territorial and which used the elongate anterior portion of the dorsal fin in signalling other species of fish. Habitat was on or near sand interstices and interconnecting coral caves amongst large boulder-shaped live corals on isolated pinnacle or barrier reefs.

Endoscopic Biopsy of Intraventricular Tumors with the Use of a Ventriculofiberscope

Neurosurgery ◽  
1978 ◽  
Vol 2 (2) ◽  
pp. 110-113 ◽  
Author(s):  
Takanori Fukushima
Keyword(s):  
Lateral Ventricle ◽  
Pineal Region ◽  
Endoscopic Biopsy ◽  
Histological Diagnosis ◽  
Intraventricular Tumor ◽  
Anterior Portion ◽  
3Rd Ventricle ◽  
Intraventricular Tumors ◽  
Made In

Abstract The results of endoscopic biopsy in 21 cases of intraventricular tumor are presented. The details of the equipment are given. Of the 21 tumors biopsied, there were 9 in the lateral ventricle, 2 in the thalamus, 6 in the anterior portion of the 3rd ventricle, and 4 in the pineal region. A correct histological diagnosis was made in 11 cases (52.4%). No serious complications were noted. The value of the procedure is discussed.

Microlepidogaster negomata, a new hypoptopomatine catfish (Loricariidae: Hypoptopomatinae) from Rio São Francisco basin, southeastern Brazil

Zootaxa ◽  
2017 ◽  
Vol 4276 (2) ◽  
pp. 233 ◽  
Author(s):  
FERNANDA O. MARTINS ◽  
ARIELI M. CHEROBIM ◽  
BRENO N. ANDRADE ◽  
FRANCISCO LANGEANI
Keyword(s):  
New Species ◽  
River Basins ◽  
Southeastern Brazil ◽  
Neural Spine ◽  
Pectoral Girdle ◽  
Anterior Portion ◽  
Dorsal Fin ◽  
Lateral Portion ◽  
A New Species ◽  
Lateral Plates

The number of species of Microlepidogaster recently increased considerably, the genus presently comprises six species distributed in the Paraná, São Francisco, and Jequitinhonha river basins. A new species of Microlepidogaster is herein described from the upper Rio São Francisco basin, which can be distinguished from all congeners by having two exclusive features within the genus: skin over swimbladder opening with two to five reduced unperforated platelets, and ventral laminar expansion of coracoid enclosing completely or almost completely the arrector fossa of the pectoral girdle. In addition, other features to recognize this species are: snout covered by many small plates bearing slender pointed odontodes; presence of iris operculum; exposure of pectoral girdle restricted to the lateral portion; presence of pectoral axillary slit only in juveniles; anterior portion of compound supraneural plus first dorsal-fin proximal radial contacting the neural spine of the eighth or ninth vertebra; first anal-fin pterygiophore covered only by skin; and uninterrupted, long median and mid-dorsal series of lateral plates. 

scholarly journals New Record of Mozambique Scorpionfish, Parascorpaena mossambica (Peters, 1855), (Actinopterygii: Order, Scorpaeniformes; Family: Scorpaendiae) From Indian Waters

2017 ◽  
Vol 22 (3) ◽  
pp. 105
Author(s):  
Muddula Krishna Naranji ◽  
Govinda Rao Velamala ◽  
Kandula Sujatha
Keyword(s):  
Lateral Line ◽  
Coastal Waters ◽  
Rare Species ◽  
Additional Data ◽  
New Records ◽  
Dorsal Margin ◽  
Dorsal Fin ◽  
Indian Waters ◽  
Transverse Scale ◽  
Made In

Parascorpaena mossambica is one of the rare species of Scorpaenidae in the Visakhapatnam coastal waters, India. Ten specimens are characterized by Dorsal fin IX 9; Anal fin III 5-6; Pectoral fin rays 15; Lateral line scales 43-44; Lateral line Pored scales 23-24; Lateral transverse scale scales 6-7/1/12-14; lachrymal bone with two lower strong antrose spines, anterior pointed and directed forward, tip reaching dorsal margin of upper lip, covered with skin; posterior one directed forward and slightly downward; suborbital with three spines. Only few records have been made in the whole Indian waters. Due to its rarity, P. mossambica is poorly studied and little known about their biology, ecology and distribution. In the present study provides additional data on this rare species. In particular, we describe its habitat, ecology, presence and distribution with several new records in Indian waters. Keywords: Scorpaenidae, fish, Parascorpaena mossambica, Visakhapatnam

scholarly journals A new dark-dotted species of Hypostomus Lacépède (Siluriformes: Loricariidae) from rio Paraguaçu, Bahia State, Brazil

2013 ◽  
Vol 11 (2) ◽  
pp. 247-256 ◽  
Author(s):  
Angela M. Zanata ◽  
Byanca Sardeiro ◽  
Cláudio H. Zawadzki
Keyword(s):  
New Species ◽  
Ventral Surface ◽  
Anterior Portion ◽  
Caudal Fin ◽  
Dorsal Fin ◽  
Fin Rays ◽  
A New Species

A new species of Hypostomus Lacépède is described from the rio Paraguaçu basin, Bahia State, Brazil. The new species is distinguished from its congeners by having black and conspicuous dots on a pale background, which are similar in size on the head, trunk, and fins, along with ventral surface of head and abdomen naked or the latter plated exclusively on its anterior portion, absence of ridges on head and trunk, and caudal-fin lobes relatively similar in length. The new species further differs from the sympatric H. chrysostiktos by having seven branched dorsal-fin rays instead of 10-11 and represents the eleventh siluriform species endemic to the rio Paraguaçu basin.

scholarly journals A new species of the armored catfish Parotocinclus (Loricariidae: Hypoptopomatinae), from the Amazon basin in Colombia

2015 ◽  
Vol 13 (1) ◽  
pp. 47-52 ◽  
Author(s):  
Pablo Lehmann A. ◽  
Lucas J. Schvambach ◽  
Roberto E. Reis
Keyword(s):  
New Species ◽  
Amazon Basin ◽  
Pupil Diameter ◽  
Ventral Surface ◽  
Anterior Portion ◽  
Pigmentation Pattern ◽  
Dorsal Fin ◽  
Triangular Patch ◽  
Dark Pigmentation ◽  
A New Species

A new species of hypoptopomatine cascudinho is described from a creek tributary to the Amazon River in Leticia, Amazonas Departament, Colombia. The new species of Parotocinclus is distinguished from congeners from northeastern to southeastern Brazilian rivers in having the cheek canal plate elongated posteriorly on the ventral surface of head and contacting the cleithrum. It is diagnosed from P. collinsae (Essequibo River basin, Guiana) and P. halbothi (rio Trombetas basin, Brazil and Marowijne River, Suriname), by having a triangular patch of dark pigmentation on the anterior portion of the dorsal-fin membrane, by the absence of unicuspid accessory teeth on both the premaxilla and dentary, and by having a Y-shaped light mark on the snout. The new species of Parotocinclus is distinguished from all remaining congeners by having a pigmentation pattern consisting of conspicuous dark dots smaller than a pupil diameter, broadly distributed dorsally and ventrally.

scholarly journals Taxonomic review of the typical long-snouted species of Corydoras (Siluriformes: Callichthyidae) from the río de La Plata basin

2020 ◽  
Vol 18 (4) ◽  
Author(s):  
Luiz Fernando Caserta Tencatt ◽  
Sérgio Alexandre dos Santos ◽  
Marcelo Ribeiro de Britto
Keyword(s):  
Ventral Surface ◽  
Branchial Arch ◽  
The Body ◽  
Rio De La Plata ◽  
Río De La Plata ◽  
Anterior Portion ◽  
La Plata ◽  
Dorsal Fin ◽  
La Plata Basin ◽  
Adipose Fin

Abstract The typical long-snouted species of Corydoras from the río de La Plata basin were reviewed herein, and the previously proposed synonymy of Corydoras ellisae was corroborated. Corydoras areio and C. aurofrenatus are diagnosed from their congeners, excluding those in lineage 1, by the following features: temporal sensory canal in sphenotic with two pores; upper tooth plate of branchial arch with three or four series of teeth; fleshy flap at mouth corner. Corydoras areio differs from all lineage 1 congeners by having infraorbital 2 with relatively wider posterior laminar expansion; absence of large patches of black pigmentation on the body and absence of conspicuous concentration of dark brown or black chromatophores on anterior portion of the dorsal fin; and presence of blotches on flanks not aligned in longitudinal series. Corydoras aurofrenatus differs from all lineage 1 congeners by having ventral surface of head and trunk densely covered by small, not coalescent platelets; middle portion of flank with two or three dark brown or black patches (below the dorsal-fin, below the adipose-fin base, and on the caudal peduncle base, diffuse and variably present), patches decreasing in size posteriorly; poorly developed fleshy flap at the corner of mouth; anteroventral portion of cleithrum exposed.

scholarly journals Baryancistrus demantoides and Hemiancistrus subviridis, two new uniquely colored species of catfishes from Venezuela (Siluriformes: Loricariidae)

2005 ◽  
Vol 3 (4) ◽  
pp. 533-542 ◽  
Author(s):  
David C. Werneke ◽  
Mark H. Sabaj ◽  
Nathan K. Lujan ◽  
Jonathan W. Armbruster
Keyword(s):  
New Species ◽  
The Body ◽  
Anterior Portion ◽  
Dorsal Fin ◽  
Posterior Section ◽  
Golden Yellow ◽  
Two New Species

Baryancistrus demantoides and Hemiancistrus subviridis are two new species of loricariids from southern Venezuela with an olive ground coloration and white to cream-colored or golden-yellow spots. Baryancistrus demantoides is known only from the upper río Orinoco drainage while H. subviridis is also known from the río Casiquiare drainage. In addition to its coloration, B. demantoides can be distinguished from all other ancistrins by having the dorsal and adipose fins connected by an expanded posterior section of the dorsal-fin membrane, golden-yellow spots confined to the anterior portion of the body, and greater than 30 teeth per jaw ramus. Hemiancistrus subviridis can be separated from all other ancistrins by coloration, lacking a connection between the dorsal and adipose fins and having less than 30 teeth per jaw ramus.

scholarly journals Microlepidogaster arachas, a new species of hypoptopomatine catfish (Siluriformes: Loricariidae) from the upper rio Paraná basin, Brazil

Zootaxa ◽  
2013 ◽  
Vol 3608 (5) ◽  
pp. 379-388 ◽  
Author(s):  
FERNANDA O. MARTINS ◽  
BÁRBARA B. CALEGARI ◽  
FRANCISCO LANGEANI
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Neural Spine ◽  
Caudal Peduncle ◽  
Anterior Portion ◽  
Dorsal Fin ◽  
Paraná Basin ◽  
Parana Basin ◽  
A New Species ◽  
Lateral Plates

Microlepidogaster arachas Martins, Calegari & Langeani, sp. nov., a new Hypoptopomatinae, is described from the upper rio Paraná basin. The new species is distinguished from M. longicolla and M. dimorpha by having the anterior portion of the compound supraneural plus first dorsal-fin proximal radial contacting the neural spine of the ninth vertebra. The new species differs from M. perforatus by having 18–29 dentary teeth; median series of lateral plates complete, reaching caudal-peduncle end, and continuous lateral line; and 20–24 mid-dorsal plates. Microlepidogaster arachas is further distinguished from its congeners by several other osteological features.

A chemoreceptive function for the anterior dorsal fin in rocklings (Gaidropsarus and Ciliata: Teleostei: Gadidae): electrophysiological evidence

1987 ◽  
Vol 67 (4) ◽  
pp. 819-823 ◽  
Author(s):  
R. C. Peters ◽  
G. W. Van Steenderen ◽  
K. Kotrschal
Keyword(s):  
Amino Acids ◽  
Facial Nerve ◽  
Human Saliva ◽  
Silver Wire ◽  
Dorsal Fin ◽  
Anterior Dorsal ◽  
Tactile Stimuli ◽  
Chemical Stimuli ◽  
Elementary Chemical ◽  
Made In

Gross activity recordings from the recurrent facial nerve were made in unrestrained specimens of Gaidropsarus and Ciliata by means of implanted silver-wire electrodes. Responses to tactile stimuli could be evoked almost anywhere on the skin. Application of the contents of the urinary bladders of other rocklings, water in which other rocklings were kept, and (diluted) human saliva to the anterior dorsal fin evoked strong responses. Responses to more elementary chemical stimuli like amino acids, salts, aldehydes, and acids, were much weaker or absent. The results favour a special chemoreceptive function of the vibratile anterior dorsal fin.

scholarly journals Two new species of Corydoras Lacépède, 1803 (Siluriformes: Callichthyidae) from the rio Madeira basin, Brazil

2016 ◽  
Vol 14 (1) ◽  
Author(s):  
Luiz Fernando Caserta Tencatt ◽  
Willian Massaharu Ohara
Keyword(s):  
New Species ◽  
Posterior Margin ◽  
Ventral Surface ◽  
Anterior Portion ◽  
Dorsal Fin ◽  
Black Spots ◽  
Coloration Pattern ◽  
Two New Species ◽  
Black Blotch ◽  
Rio Madeira

Abstract Two new species of Corydoras are described from the rio Madeira basin, Brazil. The intermediate long-snouted new species can be distinguished from its congeners by presenting the following combination of features: posterior margin of dorsal-fin spine with laminar serrations directed towards the origin of the spine; presence of two longitudinal black stripes on flanks; anterior portion of dorsal fin with sparse black chromatophores, not forming any conspicuous pattern; absence of a conspicuous black marbled coloration pattern on head; black spots on caudal fin, some spots arranged, forming transversal bars; and brownish dorsal-fin spine. The short-snouted new speciescan be distinguished from its congeners by the following combination of features: short mesethmoid; posterior laminar expansion of infraorbital 2 very reduced, not in contact with compound pterotic; two or three longitudinal black stripes on flanks; absence of an oblique or vertical black blotch across the eye; anterior portion of dorsal fin with sparse black chromatophores, not forming any conspicuous pattern; and ventral surface of trunk naked or covered by sparse platelets.

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