scholarly journals Recent Studies on Neoechinorhynchus curemai Noronha, 1973 (Acanthocephala: Neoechinorhynchidae), in Prochilodus lineatus Valenciennes, 1836, from Volta Grande Reservoir, MG, Brazil

2000 ◽  
Vol 60 (4) ◽  
pp. 673-682 ◽  
Author(s):  
M. L. MARTINS ◽  
R. Y. FUJIMOTO ◽  
P. M. ANDRADE ◽  
M. TAVARES-DIAS
Keyword(s):  
Reproductive System ◽  
Original Description ◽  
Cement Gland ◽  
Helminth Parasites ◽  
Great Similarity ◽  
Prochilodus Lineatus ◽  
The Third ◽  
Anterior Circle

The present work described helminth parasites of curimbatá, Prochilodus lineatus Valenciennes, 1836 from Volta Grande Reservoir, MG, Brazil. Eighteen fishes with average 46.7 ± 1.1 cm length and 1,674.8 ± 75.6 g weight were collected. Of the analysed fishes, 15 were parasitized with acanthocephalans in the intestine, showing a prevalence of 83.3%. The helminth was identified as Neoechinorhynchus curemai Noronha, 1973 (Acanthocephala: Neoechinorhynchidae). It differs from other species in dimension of characters and morphology. From the original description of N. curemai, it differs from the biggest dimension of testis, elongated cement gland, nucleated lemnisci, eggs size, larger proboscis hooks length in the middle and in the third circle in males and larger hooks in the anterior circle in females. A smaller percentage occupied by the reproductive system in female trunk was reported. The observation of paratypes of N. curemai of Noronha (1973) showed a great similarity with those of the present work. This fact complements the helminth description from elsewhere.

Cancer neptuni Linnaeus, 1768 (now Alima neptuni): original description, authorship and date of publication (Crustacea: Stomatopoda: Squillidae)

Zootaxa ◽  
2017 ◽  
Vol 4319 (2) ◽  
pp. 373
Author(s):  
MARTYN E. Y. LOW ◽  
SHANE T. AHYONG
Keyword(s):  
Original Description ◽  
The Third

The original description of the stomatopod species Cancer neptuni (currently known as Alima neptuni) has been accepted as being published in the third volume of the twelfth edition of the Systema naturae by Linnaeus (1768a: 226) by virtually all authors (e.g., Manning & Lewinsohn 1986: 13; Holthuis 2000: 17, 18; Ahyong 2001: 188; Ahyong 2002: 362; Ahyong 2005: 206; Lucatelli et al. 2012: 282). Linnaeus (1768a) is known to have been published after 28 January 1768 because a publication of that date is cited in the Prefatio of that work (p. [3], footnote). 

scholarly journals Rediscovery and redescription of the endangered Hypostomus subcarinatus Castelnau, 1855 (Siluriformes: Loricariidae) from the rio São Francisco basin in Brazil, with comments on the urban water conservation

2018 ◽  
Author(s):  
Cláudio Henrique Zawadzki ◽  
Iago de Souza Penido ◽  
Tiago Casarim Pessali
Keyword(s):  
Water Conservation ◽  
Original Description ◽  
Southeastern Brazil ◽  
Urban Water ◽  
Urban Lake ◽  
Unexpected Event ◽  
The Third ◽  
Dorsal Fin ◽  
Fin Rays ◽  
Belo Horizonte

AbstractHypostomus subcarinatus Castelnau, 1855 is rediscovered in the Pampulha lake, an urban lake pertaining to the rio das Velhas basin in the rio São Francisco system in the state of Minas Gerais, southeastern Brazil. Herein, H. subcarinatus is redescribed and its diagnosis from the congeners is established due to characters such as blue tan dorsal fin in live specimens, slender bicuspid teeth, dentaries angled more than 90 degrees, moderate keels along lateral series of plates, small roundish dark spots, one plate bordering supraoccipital, by having nuptial odontodes mainly on pectoral, dorsal and caudal-fin rays, and longer anal-fin unbranched ray. The rediscovery of H. subcarinatus after more than 160 years after its original description was one unexpected event, because the Pampulha lake is an artificial, shallow and polluted urban lake. The lake is located in the downtown of municipality of Belo Horizonte, the third largest urban agglomeration in Brazil with a population exceeding 5.9 million inhabitants. In the light of this finding we address the importance of urban body waters to maintenance of fish biodiversity in the neotropics.

Alpheus leptochiroides De Man, 1909, a poorly known deep-water snapping shrimp with a unique third maxilliped (Malacostraca: Decapoda: Alpheidae)

Zootaxa ◽  
2019 ◽  
Vol 4712 (4) ◽  
pp. 552-560
Author(s):  
ARTHUR ANKER ◽  
CHARLES H.J.M. FRANSEN
Keyword(s):  
Papua New Guinea ◽  
Adult Male ◽  
Deep Water ◽  
New Guinea ◽  
Original Description ◽  
Western Pacific ◽  
The Third ◽  
Tropical Western Pacific ◽  
De Man ◽  
Alpheid Shrimp

Alpheus leptochiroides De Man, 1909, a poorly-known species originally described from the Kai Islands in eastern Indonesia, is reported from Kavieng, eastern Papua New Guinea, representing only the second record of this snapping shrimp and slightly extending its distribution range into the tropical western Pacific. The original description was based on a relatively young specimen, whereas the Kavieng specimen is clearly an adult male. Most importantly, several rather important characters of the species were omitted and/or not illustrated by De Man, including the unique and diagnostic rounded cuticular expansions on several areas of the third maxilliped, not present in any other alpheid shrimp. Therefore, a full redescription of the species is provided, with new detailed illustrations. 

Observations on changes in the female reproductive system of the wheat bulb fly Leptohylemyia coarctata (Fall.)

1971 ◽  
Vol 61 (1) ◽  
pp. 55-68 ◽  
Author(s):  
Margaret G. Jones
Keyword(s):  
Winter Wheat ◽  
Reproductive System ◽  
Follicular Epithelium ◽  
Cereal Aphids ◽  
Nurse Cells ◽  
Female Reproductive System ◽  
Egg Development ◽  
Sugar Water ◽  
The Third ◽  
Water Traps

In Leptohylemyia coarctata (Fall.) the germarium cuts off oocytes which develop through the stages 00 and 0 and I-V, recognised in other Cyclorraphous flies, in 4–5 weeks. All eggs of one batch of the gonadotrophic cycle ripen at the same time. After oviposition, the split intima, the remains of the follicular epithelium, and the nurse cells slowly contract to form the follicular relic. Flies swept from winter wheat during June and July and caught in water traps in July and August showed all stages of egg development. In 1970, 24·7% of the females swept from the crop had completed the first, 4–7% the second and 0–4% the third gonadotrophic cycle. All the eggs were not laid at the same time. During later gonadotrophic cycles, some ovarioles were non-functional. Flies laid one or two batches of eggs, rarely three. In 1970, many flies were attacked and killed by E. muscae. Only one out of 115 newly emerged female wheat bulb flies presented with foods usually found in the crop or citrated blood contained mature eggs after 24–27 days in small cages. Those fed only on 0·1 M glucose survived but did not deposit yolk in the ovum; those provided only with yeast paste died. Honey dew from cereal aphids was the main source of sugar. Water in droplet form and space to move seem necessary for the maturation of the eggs.

THE IMPACT OF THE MORPHOLOGICAL AFFIXES IN THE LINGUISTIC ECONOMY“A COMPARATIVE STUDY BETWEEN HEBREW AND ARABIC LANGUAGE”

2021 ◽  
Vol 3 (4) ◽  
pp. 320-338
Author(s):  
Ibtisam Jebur MNEHIL, Ban Salih Mahdi AL KHAFAJI ◽  
Rasheed Ghazwan MAJEED
Keyword(s):  
Comparative Study ◽  
Research Paper ◽  
Arabic Language ◽  
The Other ◽  
Foreign Languages ◽  
Great Similarity ◽  
The Third ◽  
Hebrew Language ◽  
The Rich ◽  
The Impact

The research paper focuses on the morphological affixes in the two languages, Arabic and Hebrew and the impact of these affixes in the linguistic economy. The study aims at gaining knowledge of what linguistic economy achieved by morphological affixes which contribute in creating the rich meaning by little pronunciation as well as making a comparison between the two languages to know the language that is the most economic than the other and investigating the reasons behind this economy. The research is divided into three sections. The first one focuses on the morphological prefixes; the second one on the internal affixations; and the third one on morphological suffixes. The study concluded that there is a great similarity between the Hebrew and Arabic languages in many of the morphological affixations in addition to the simple differences between the two languages. An aspect of this difference is that the Hebrew language tends to borrow the affixations from the foreign languages more than the Arabic language.

Redescription of Dicranocentrus heloisae Arlé & Mendonça, 1982 (Collembola: Entomobryidae)

2014 ◽  
Vol 2 (18) ◽  
pp. 1 ◽  
Author(s):  
Thiago Xisto ◽  
Maria Cleide de Mendonça
Keyword(s):  
Rio De Janeiro ◽  
New Records ◽  
Antennal Segment ◽  
Original Description ◽  
Color Pattern ◽  
Maxillary Palp ◽  
Type Locality ◽  
Sensory Organ ◽  
Pale Yellow ◽  
The Third

Dicranocentrus heloisae Arlé & Mendonça 1982 is redescribed based on specimens collected from its type locality, “Parque Nacional da Tijuca”, Rio de Janeiro municipality, State of Rio de Janeiro. The presence of 6+6 macrochaetae S, 1+1 macrochaeta P, and absence of macrochaetae A1 and Ps dorsally on head, puts Dicranocentrus heloisae in the gracilis-group sensu Mari-Mutt (1979). This species is easily indentified mainly due to general color pattern of pale yellow on body with bluish to blackish pigmentation on head. Taxonomic characteristics not illustrated in the original description are given (dorsal cephalic chaetotaxy, sensory organ of the third antennal segment, eyes, labrum, maxillary palp, outer labial papilla, labial triangle, trochanteral organ, femur, tibiotarsus, unguis, ventral tube and tenaculum). New records from other localities in Brazil are provided. A neotype for Dicranocentrus heloisae is designated.

Colloid cysts

2019 ◽  
pp. 393-402
Author(s):  
Asim Sheikh ◽  
Paul Chumas
Keyword(s):  
Obstructive Hydrocephalus ◽  
Third Ventricle ◽  
Original Description ◽  
Management Options ◽  
Anterior Portion ◽  
Operator Experience ◽  
The Third ◽  
Microsurgical Approach ◽  
Colloid Cysts ◽  
Mass Lesions

Colloid cysts are benign, mostly intraventricular tumours accounting for 0.5 to 2% of all intracranial mass lesions. They are most commonly found in the anterior portion of the third ventricle at the level of foramina of Monro and, if symptomatic, usually present with obstructive hydrocephalus of the lateral ventricles. The original description historically linked them with sudden death in the pre-CT era. They are also known as neuroepithelial cysts. Management options include treatment of hydrocephalus alone, aspiration of the cyst contents, and removal of the cyst endoscopically or via a microsurgical approach. However, the most important factor in the choice of any of these approaches is operator experience.

External sexual characters of larvae of Spodoptera littorails (Boisduval) and S. exempta (Walker) (Lepidoptera: Noctuidae) and their use for sexing live larvae

1982 ◽  
Vol 72 (3) ◽  
pp. 403-408 ◽  
Author(s):  
Linda C. Haines
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Reproductive System ◽  
Light Microscope ◽  
Spodoptera Littoralis ◽  
Ventral Surface ◽  
Female Characters ◽  
The Third ◽  
Lepidoptera Noctuidae ◽  
Scanning Electron

AbstractExternal sexual characters are described for the larvae of Spodoptera littoralis (Boisd) and S. exempta (Wlk.). The characters on the female consist of two pairs of pits on the ventral surface of the eighth and ninth abdominal segments. These pits are visible under a light microscope and can therefore be used for the accurate sexing of live larvae from the third instar onwards. The first- and second-instar larvae of both species could not be sexed using external characters because of their small size. In the males of both species, there are no obvious external sexual characters until the last instar, and therefore the sexes are most easily separated by the presence or absence of the female characters. Third- to sixth-instar larvae of both species were examined for the presence or absence of the female pits and were then sexed by dissection. The accuracy of sexing using the external characters was 90–98% for S. littoralis and 100% in all cases for S. exempta. The histology of the female pits and their appearance under the scanning electron microscope is described. These pits in the female larvae give rise to the external openings of the adult reproductive system.

THE FORMATION OF ANTIGONADOTROPHIN IN SHEEP AND ITS EFFECT ON THE ENDOCRINES AND REPRODUCTIVE SYSTEM

1960 ◽  
Vol XXXV (II) ◽  
pp. 253-260 ◽  
Author(s):  
H. Pigon ◽  
M. T. Clegg ◽  
H. H. Cole
Keyword(s):  
Pituitary Gland ◽  
Reproductive System ◽  
Maximum Activity ◽  
Prolonged Administration ◽  
The Third ◽  
Female Sheep

ABSTRACT Eight female sheep were treated twice weekly with various doses of equine gonadotrophin injected either subcutaneously or intravenously. Antigonadotrophic activity appeared by the second week with injections of 200 IU, by the third week with 500 IU, and by the fifth week with the highest dose (1000 IU). In the last case, maximum activity was delayed until the 7th week. Route of injection did not influence rate of formation. When injections were discontinued, the antigonadotrophic potency of the serum was reduced after three weeks, but the levels again rose rapidly upon resumption of treatment, soon equaling or exceeding the former levels. Prolonged administration of gonadotrophin did not influence the weights of the pituitary gland, adrenal, thyroid, or ovaries. When large doses of equine gonadotrophin (500 or 1000 IU) were injected twice weekly, the ovaries remained acyclic and pituitary LH content was significantly reduced.

Studies on the Helminth Parasites of Birds in Hyderabad State. Nematoda II

1948 ◽  
Vol 22 (3-4) ◽  
pp. 199-218 ◽  
Author(s):  
Satya Narayan Singh
Keyword(s):  
New Species ◽  
Related Species ◽  
New Record ◽  
Type Species ◽  
Passer Domesticus ◽  
Original Description ◽  
Helminth Parasites ◽  
Accipiter Nisus ◽  
A New Species

Acuaria anthuris, the type species of the genus Acuaria, is described in detail and A. scutata is considered to be synonymous with it.Acuaria skrjabini from Passer domesticus has been described and compared with the original description. It is a new record for India and Hyderabad.Acuaria kungi n.sp. from Saxicoloides fulicata is described and compared with related species.Acuaria sp. is recorded from Pastor roseus.A new species of Cheilospirura from Accipiter nisus is described and compared with related species.

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