Measurements of a Male and Female Specimen of the Seven-Gilled Shark, Heptranchias perlo

Copeia ◽  
1919 ◽  
pp. 9
Author(s):  
L. Hussakof
Keyword(s):  
Female Specimen ◽  
Male And Female ◽  
Heptranchias Perlo

Notes on the known species of Trichomyia Haliday of Mexico, with the establishment of a synonymy and the description of a new species (Diptera: Psychodidae)

Zootaxa ◽  
2004 ◽  
Vol 523 (1) ◽  
pp. 1 ◽  
Author(s):  
SERGIO IBÁÑEZ-BERNAL
Keyword(s):  
New Species ◽  
The State ◽  
Female Specimen ◽  
Male And Female ◽  
First Report ◽  
As Species ◽  
Species Inquirenda ◽  
A New Species

Only three species of Trichomyia Haliday have been recorded in Mexico. Trichomyia cirrata Coquillett, 1902, is recognized by its female characteristics, T. fairchildi Vargas and D az-N jera, 1953, was described based only on the wing and must be considered as species inquirenda, and T. maldonadoi (Vargas, 1953), which was described based on one female specimen. Specimens of Trichomyia collected in the states of Campeche, Yucatan, and Oaxaca, Mexico, allowed this female to be associated with the male of T. brevitarsa (Rapp, 1945), thus providing a first report of this species in Mexico. Consequently, T. maldonadoi is proposed as a synonym of T. brevitarsa. Additionally, a new species of Trichomyia from the state of Veracruz, Mexico, is described and illustrated based on the male and female characteristics.

scholarly journals Cranial and External Morphology of Male and Female Orange Headed Tree Squirrels (Funisciurus leucogenys) in Selected Locations of Savannah Forest in Nigeria

2019 ◽  
pp. 1-12
Author(s):  
A. O. Bamidele ◽  
A. I. Akinpelu
Keyword(s):  
The Body ◽  
External Morphology ◽  
Female Specimen ◽  
Vegetation Zone ◽  
Generic Level ◽  
Male And Female ◽  
Female Tree ◽  
Tree Squirrels ◽  
Tree Squirrel ◽  
Body Parameters

This study examined the differences in cranial and external morphology of male and female tree squirrel species (Funisciurus leucogenys) from three different locations in Savannah vegetation zone of Nigeria. The tree squirrels were collected from contracted local hunters which identify the tree squirrel. After collection and identification to the generic level, they were transferred to the laboratory in absolute ethanol. About 183 skulls were prepared (58 male and 125 female), the skull and other body parameters were measured using digital venire calliper. The results showed that the body parameters (HBL, TL, TBL, EL, HFL, and BW) of the female specimen measured were different from male and the body parameters of the specimen from one location were slightly different from another. Also, the cranial measure showed some similarities and slight differences between male and female specimen among the locations (Asejire, Ilorin, and Ogbomosho). In conclusion, the cranial and body morphology parameters of male and female tree squirrels from the three locations (Asejire, Ilorin, and Ogbomosho) showed that despite that the tree squirrels were from different locations, they were of the same genus (F. leucogeny), which indicated that locations might not have an effect on the specimen.

Notes on the functional morphology of terminalia from Prorates ballmeri Nagatomi and Liu (Diptera: Scenopinidae: Proratinae) collected while in copula, with a description of the previously unknown female

Zootaxa ◽  
2002 ◽  
Vol 76 (1) ◽  
pp. 1 ◽  
Author(s):  
MARK A. METZ ◽  
SHAUN L. WINTERTON ◽  
MICHAEL E. IRWIN
Keyword(s):  
Functional Morphology ◽  
Female Genitalia ◽  
Species Variation ◽  
Female Specimen ◽  
Male And Female ◽  
Comprehensive Study

A male and female specimen of Prorates ballmeri Nagatomi and Liu were collected while in copula. The specimens were dissected to find that the elongate distiphallus of the male had been inserted within the spermathecal ducts of the female. The association of the male and female genitalia for this species is figured and discussed in relation to associated taxa with similar genitalic features. The species was originally described from three male specimens, which did not allow for comprehensive study of the variation in many characters. The male is redescribed based on many newly collected specimens to include additional characters and the species variation and the previously unknown female is described. Additional notes on the taxonomy of the genus Prorates are included.

Redescription of the type species of the genus Thuylamea Nguyên, 2001 (Decapoda, Caridea, Alpheidae), based on a female specimen

Crustaceana ◽  
2016 ◽  
Vol 89 (10) ◽  
pp. 1185-1191 ◽  
Author(s):  
Yanrong Wang ◽  
Zhongli Sha
Keyword(s):  
Type Species ◽  
Female Specimen ◽  
Male And Female

Thuylamea Nguyên, 2001 was originally established based on male specimens from Vietnam. One female specimen identified as Thuylamea camelus Nguyên, 2001 is now described and illustrated in the present paper. Differences between male and female are discussed.

Redescription of the type specimens of Althepus pictus Thorell, 1898 (Araneae, Psilodercidae) from Myanmar

Zootaxa ◽  
2020 ◽  
Vol 4838 (3) ◽  
pp. 441-444
Author(s):  
YEJIE LIN ◽  
MARIA L. TAVANO ◽  
SHUQIANG LI ◽  
HAIFENG CHEN
Keyword(s):  
Southeast Asia ◽  
Type Species ◽  
Original Description ◽  
Female Specimen ◽  
Type Specimens ◽  
Male And Female ◽  
Biodiversity Research ◽  
Female Type ◽  
Fresh Material ◽  
The Family

Althepus pictus Thorell, 1898 is the type species of the genus Althepus Thorell, 1898 from the family Psilodercidae Machado, 1951. This genus includes 60 species from Southeast Asia (WSC 2020). A. pictus was described on the basis of one male and one female from Carin Chebà mountains, elevation 600‒800 m, Kayin Province, Myanmar. Another female specimen lacking several legs was found in Farm Caves in Mawlamyine, Mon State, Myanmar. The original description was in Latin and without any figures. Fage (1912) redescribed it based on the same male and female type specimens from Carin Chebà, but without mentioning the female from Farm Caves. Fage (1912) provided measurements, but the figures of the male right palp are imprecise. The species is redescribed here based on the original male and female type specimens deposited in Museo Civico di Storia Naturale ‘Giacomo Doria’ (MSNG) in Italy. The male and female type specimens are the only known material of A. pictus. No information is available on the female specimen from Farm Caves, which maybe have been lost. No fresh material of this species has been collected in region during five subsequent expeditions to Myanmar tours organized by the Southeast Asia Biodiversity Research Institute in the years 2016–2020. 

scholarly journals A new genus and species of Pristocerinae (Hymenoptera, Bethylidae) from upper Eocene Baltic amber with a review of conspecific association from insect fossils

2021 ◽  
Vol 85 ◽  
pp. 119-133
Author(s):  
Carly Melissa Tribull ◽  
Madeline V. Pankowski ◽  
Wesley Dondoni Colombo
Keyword(s):  
Reproductive Behavior ◽  
New Genus ◽  
Baltic Amber ◽  
Female Specimen ◽  
Upper Eocene ◽  
New Genus And Species ◽  
Male And Female ◽  
Kaliningrad Region ◽  
Extinct Genus ◽  
Insect Fossils

A new extinct genus and species of Pristocerinae, †Archeonesia eocena Tribull, Pankowski & Colombo, gen. et. sp. nov., are described from upper Eocene Baltic amber from the Yantarny amber mine in the Kaliningrad region, Russia. Descriptions, remarks, illustrations, and comparisons to all extinct and extant Pristocerinae are provided. †Archeonesia is described as a new genus because neither the male nor the female can be placed in any previously described genera, although the female is most similar to Acrenesia and the male is most similar to Cleistepyris. Rare for Bethylidae, and Hymenoptera in general, this fossil contains both a male and female specimen that we are describing as conspecifics. A brief review from the paleoentomological literature is provided to describe how insect fossils containing evidence of reproductive behavior have been used to associate conspecifics in extinct species.

Review of the monotypic genus Idiopyrgota Aczel (Diptera, Pyrgotidae)

Zootaxa ◽  
2008 ◽  
Vol 1817 (1) ◽  
pp. 59
Author(s):  
RAMON LUCIANO MELLO ◽  
CARLOS JOSÉ EINICKER LAMAS
Keyword(s):  
Single Species ◽  
First Record ◽  
Type Locality ◽  
Monotypic Genus ◽  
Female Specimen ◽  
Mato Grosso ◽  
Anatomical Structures ◽  
Male And Female ◽  
Mato Grosso Do Sul ◽  
Unknown Male

Aczél established the genus Idiopyrgota to place a single species, I. setiventris, based on an analysis of eight females from Mato Grosso do Sul, Brazil. The species is redescribed on the basis of new available material from the type locality as well as one female specimen from Jujuy, Argentina (this is the first record of this species in this area). Adult anatomical structures are described and illustrated in detail, including information of the previously unknown male and female spermathecae. This study provides better grounds for the recognition of the taxon.

The Clinical, Roentgenological and Morphological Effects of an Acute Exposure of Phosgene on the Lungs of Dogs

1971 ◽  
Vol 29 ◽  
pp. 236-237
Author(s):  
R. F. Bils ◽  
W. F. Diller ◽  
F. Huth
Keyword(s):  
Latent Period ◽  
Chemical Industry ◽  
Toxic Substance ◽  
Lung Edema ◽  
X Rays ◽  
Beagle Dogs ◽  
Male And Female ◽  
Morphological Alterations ◽  
Before And After ◽  
Electron Microscopes

Phosgene still plays an important role as a toxic substance in the chemical industry. Thiess (1968) recently reported observations on numerous cases of phosgene poisoning. A serious difficulty in the clinical handling of phosgene poisoning cases is a relatively long latent period, up to 12 hours, with no obvious signs of severity. At about 12 hours heavy lung edema appears suddenly, however changes can be seen in routine X-rays taken after only a few hours' exposure (Diller et al., 1969). This study was undertaken to correlate these early changes seen by the roengenologist with morphological alterations in the lungs seen in the'light and electron microscopes.Forty-two adult male and female Beagle dogs were selected for these exposure experiments. Treated animals were exposed to 94.5-107-5 ppm phosgene for 10 min. in a 15 m3 chamber. Roentgenograms were made of the thorax of each animal before and after exposure, up to 24 hrs.

Ultrastructural investigation of spontaneous pituitary gonadotroph cell adenomas in aging Sprague-Dawley rats

1983 ◽  
Vol 41 ◽  
pp. 702-703
Author(s):  
D. J. McComb ◽  
J. Beri ◽  
F. Zak ◽  
K. Kovacs
Keyword(s):  
Electron Microscopy ◽  
Animal Model ◽  
Epoxy Resin ◽  
Immunoelectron Microscopy ◽  
Tumor Type ◽  
Gonadal Function ◽  
Sprague Dawley ◽  
Male And Female ◽  
Reticulin Fibers ◽  
Sprague Dawley Rats

Gonadotroph cell adenomas of the pituitary are infrequent in human patients and are not invariably associated with altered gonadal function. To date, no animal model of this tumor type exists. Herein, we describe spontaneous gonadotroph cell adenomas in old male and female Sprague-Dawley rats by histology, immunocytology and electron microscopy.The material consisted of the pituitaries of 27 male and 38 female Sprague Dawley rats, all 26 months of age or older, removed at routine autopsy. Sections of formal in-fixed, paraffin-embedded tissue were stained with hematoxylin-phloxine-saffron (HPS), the PAS method and the Gordon-Sweet technique for the demonstration of reticulin fibers. For immunostaining, sections were exposed to anti-rat β-LH, anti-ratβ-TSH, anti-rat PRL, anti-rat GH and anti-rat ACTH 1-39. For electron microscopy, tissue was fixed in 2.5% glutaraldehyde, postfixed in 1% OsO4 and embedded in epoxy-resin. Tissue fixed in 10% formalin, embedded in epoxy resin without osmification, was used for immunoelectron microscopy.

Quantitative ultrastructural reconstruction of small regions within large volumes by correlative light and high voltage electron microscopy of serial 0.25-0.50 μm sections

1987 ◽  
Vol 45 ◽  
pp. 578-581
Author(s):  
Conly L. Rieder ◽  
Frederick J. Miller ◽  
Edwin Davison ◽  
Samuel S. Bowser ◽  
Kirsten Lewis ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
High Voltage ◽  
Mitotic Spindle ◽  
Meiotic Spindle ◽  
High Voltage Electron Microscopy ◽  
Male And Female ◽  
Voltage Electron ◽  
High Voltage Electron ◽  
Differential Stability ◽  
Sperm Aster

In this abstract we Illustrate how same-section correlative light and high voltage electron microscopy (HVEM) of serial 0.25-0.50-μm sections can answer questions which are difficult to approach by EM of 60-100 nm sections.Starfish (Pisaster and Asterlas) eggs are fertilized at meiosis I when the oocyte contains two maternal centrosomes (e.g., asters) which form the poles of the first meiotic spindle. Immediately after fertilization a sperm aster is assembled in the vicinity of the male pronucleus and persists throughout meiosis. At syngamy the sperm aster splits to form the poles of the first mitotic spindle. During this time the functional and replicative properties of the maternal centrosome, inherited from the last meiotic division, are lost. The basis for this differential stability, of male and female centrosomes in the same cytoplasm, is a mystery.

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