Studies on the morphology of Macrolaimus arboreus Truskova & Eroshenko, 1977 (Rhabditida: Chambersiellidae) from Iran

Nematology ◽  
2018 ◽  
Vol 20 (5) ◽  
pp. 441-447 ◽  
Author(s):  
Ebrahim Shokoohi ◽  
Hadi Panahi ◽  
Hendrika Fourie ◽  
Joaquín Abolafia
Keyword(s):  
Body Length ◽  
Excretory Pore ◽  
Reproductive System ◽  
Tail Length ◽  
The Body ◽  
Female Reproductive System ◽  
Female Tail ◽  
Length Measurements

Summary A population of Macrolaimus arboreus was collected from the rhizosphere of pine in Iran. This population of M. arboreus is characterised by the body length, 800-1010 μm in females, lip region with six seta-like papillae directed anteriad, stoma nearly as long as wide (9-11 × 7 μm), with cheilostom slightly longer than gymnostom and cheilorhabdia and gymnorhabdia well-developed, pharyngeal corpus 1.8-2.0 times the isthmus length, with slightly swollen metacorpus, excretory pore located at isthmus level, female reproductive system monodelphic-prodelphic reflexed with short post-vulval uterine sac, female tail conical (57-67 μm, c = 13.7-15.0, c′ = 3.5-3.8), ending in an acute tip which is weakly curved dorsad, and phasmids at 54-60% of tail length. Measurements and illustrations, including SEM, are provided.

Redescription of Macrolaimus canadensis Sanwal, 1960 and M. ruehmi Andrássy, 1966 (Nematoda, Rhabditida, Chambersiellidae), and new data on M. crucis Maupas, 1900

2018 ◽  
Vol 93 (1) ◽  
pp. 109-125
Author(s):  
J. Abolafia ◽  
A.N. Ruiz-Cuenca ◽  
J. Foit ◽  
V. Čermak
Keyword(s):  
Czech Republic ◽  
Iberian Peninsula ◽  
Body Length ◽  
Excretory Pore ◽  
Tail Length ◽  
The Body ◽  
The Czech Republic ◽  
Male And Female ◽  
Female Tail ◽  
Males And Females

AbstractThree species belonging to the genus Macrolaimus, namely M. canadensis, M. crucis and M. ruehmi, have been obtained from areas of natural vegetation in Bosnia and Herzegovina, Corsica (France), the Czech Republic and Spain. These three species are characterized by the body length of males and females, stomatal proportion of the gymnostom and cheilostom, excretory pore position, postvulval uterine sac length, male and female tail length and morphology, and the length and morphology of the spicules and gubernacula. The occurrence of M. crucis in Spain has, as a result of this study, now also been expanded to a larger area of the southern Iberian Peninsula. Morphological and morphometrical analyses showed that M. canadensis and M. ruehmi are very similar, sharing apomorphic characters. In contrast, M. crucis has plesiomorphic characters. Description, measurements and illustrations are provided for these three species.

Memoirs: The Origin and Nature of the Egg Membranes in Chirocephalus Diaphanus

1938 ◽  
Vol s2-80 (320) ◽  
pp. 553-565
Author(s):  
MARY L. MAWSON ◽  
C. M. YONGE
Keyword(s):  
Reproductive System ◽  
Duct Cell ◽  
The Body ◽  
Female Reproductive System ◽  
Inner Membrane ◽  
Especial Reference ◽  
Gland Cells ◽  
Egg Case ◽  
Chirocephalus Diaphanus ◽  
Uterine Glands

1. The anatomy of the female reproductive system in Chirocephalus diaphanus is described with especial reference to the paired anterior and posterior masses of uterine glands. 2. The gland-cells are arranged in pairs surrounded by a common membrane and served by a single duct formed by a separate duct-cell, representing possibly an ingrowth of the uterine epithelium. 3. The glands increase greatly in size during development owing to the formation of a granular secretion which is apparently formed in the nucleus and gradually displaces the original cytoplasm. 4. The egg-case consists of an inner membrane which is chitinous and is formed by the oviducal epithelium, and an outer thicker, rugose membrane which is non-chitinous and is secreted by the uterine glands. 5. Attention is drawn to the close resemblance to conditions in the Decapoda. The inner membrane in both cases is chitinous and formed in the oviduct, while the uterine secretion has much in common with the secretion of the cement glands, but is concerned with protection only and not also with attachment to the body of the female.

A new species of Aoruroides Travassos & Kloss, 1958 (Nematoda: xyuridomorpha: Thelastomatidae) parasite of the wood-burrowing cockroach Panesthia angustipennis spadica (Shiraki, 1906) (Blattodea: Blaberidae: Panesthiinae) from Japan with comments on the validity of the genus Aoruroides

Zootaxa ◽  
2019 ◽  
Vol 4712 (3) ◽  
pp. 365-376
Author(s):  
JANS MORFFE ◽  
NAYLA GARCÍA ◽  
KOICHI HASEGAWA ◽  
RAMON A. CARRENO
Keyword(s):  
New Species ◽  
Body Length ◽  
Excretory Pore ◽  
Nerve Ring ◽  
The Body ◽  
Morphological Data ◽  
Lsu Rdna ◽  
Japanese Archipelago ◽  
The Japanese Archipelago ◽  
A New Species

Aoruroides chubudaigaku n. sp. (Nematoda: Oxyuridomorpha: Thelastomatidae) is described from the wood-burrowing cockroach Panesthia angustipennis spadica (Shiraki, 1906) (Blattodea: Blaberidae: Panesthiinae) from Aichi prefecture, Japan. Females of A. chubudaigaku n. sp. are similar to A. costaricensis Carreno & Tuhela, 2011 by the position of the nerve ring at level of the first third of the isthmus, the body length and the comparative measurements of the oesophagus and tail. They differ by the position of the excretory pore and the vulva. The males of A. chubudaigaku n. sp. are characterized by the absence of ornamentations in the cervical cuticle and the nerve ring located at the posterior third of the corpus. In addition, the males of the new species can be differentiated by the length of the body and the comparative lengths of the oesophagus and the tail. The phylogeny of A. chubudaigaku n. sp. is inferred by the D2-D3 domains of the LSU rDNA and the validity of the genus Aoruroides Travassos & Kloss, 1958 is discussed on the basis of both molecular and morphological data. This constitutes the first species of the genus Aoruroides described from the Japanese archipelago. 

Steinernema citrae n. sp. (Rhabditida: Steinernematidae), a new entomopathogenic nematode from South Africa

Nematology ◽  
2011 ◽  
Vol 13 (5) ◽  
pp. 569-587 ◽  
Author(s):  
Nomakholwa F. Stokwe ◽  
Antoinette P. Malan ◽  
Khuong B. Nguyen ◽  
Rinus Knoetze ◽  
Louwrens Tiedt
Keyword(s):  
South Africa ◽  
New Species ◽  
Body Length ◽  
Entomopathogenic Nematode ◽  
Tail Length ◽  
Morphological Characters ◽  
The Body ◽  
Infective Juvenile ◽  
Western Cape ◽  
Citrus Orchards

Abstract During a survey for entomopathogenic nematodes in citrus orchards throughout South Africa, a new species of Steinernema was isolated from a citrus orchard on Rietkloof farm, near the town of Piketberg in the Western Cape Province, South Africa. The nematode was isolated from soil using the Galleria-baiting technique. Steinernema citrae n. sp. is characterised by the following morphological characters: third-stage infective juvenile with a body length of 754 (623-849) μm, distance from head to excretory pore of 56 (49-64) μm, tail length of 71 (63-81) μm, and ratio E value of 110 (85-132). The lateral pattern for the new species is 2, 7, 8, 6, 4, 2 and is not typical for the genus. Steinernema citrae n. sp. is closely related the feltiae-group. The body length of the IJ is close to that of S. texanum and S. weiseri, though it differs in body diam., the length of the pharynx and E%. The male of S. citrae n. sp. differs from S. feltiae in the length and shape of the spicule and body diam. Steinernema citrae n. sp. differs from all species in the feltiae-group in the morphology of the vulva, as it has a single flapped, low, epiptygma. It also differs from the most closely related species, S. feltiae, as there is no interbreeding between the two species. In addition, the new nematode differs from other species of the feltiae-group by characteristics of the ITS and D2D3 regions of its rDNA.

New Thelastomatoidea (Nematoda: Oxyurida) from Australian burrowing cockroaches (Blaberidae: Geoscapheinae, Panesthiinae)

Nematology ◽  
2006 ◽  
Vol 8 (3) ◽  
pp. 443-454 ◽  
Author(s):  
Aaron R. Jex ◽  
Margaret A. Schneider ◽  
Harley A. Rose ◽  
Tom H. Cribb
Keyword(s):  
Reproductive System ◽  
National Park ◽  
New South ◽  
Tail Length ◽  
New Genera ◽  
Single Specimen ◽  
Female Reproductive System ◽  
Additional Species ◽  
System A ◽  
South Wales

AbstractFour new species and two new genera of thelastomatoid are described from several species of Australian burrowing cockroaches (Blattodea: Panesthiinae; Geoscapheinae). Corpicracens munozae n. g., n. sp., Pseudodesmicola botti n. g., n. sp. and Cephalobellus nolani n. sp. are described from Geoscapheus dilatatus (Blattodea: Geoscapheinae) from Mendooran, New South Wales; one new thelastomatid, Blattophila praelongicauda n. sp., is described from Panesthia cribrata from Lamington National Park, Queensland. Corpicracens munozae n. g., n. sp. is long and slender, with a monodelphic female reproductive system, a clavate corpus with a slight posterior pseudobulb, oval eggs flattened at the poles, and a relatively robust, subulate tail. Pseudodesmicola botti n. g., n. sp. is slightly more robust in body, also has a monodelphic reproductive system, a cylindrical corpus with a posterior pseudobulb, ovoid eggs and a very long, subulate tail. Cephalobellus nolani n. sp. is distinguished from other members of the genus by its relatively short and broad body and egg shape. Lastly, Blattophila praelongicauda n. sp. is distinguished from other members of the genus by having eggs with a single, polar operculum, tail length, and position of the vulva, nerve ring and excretory pore. An additional species, known by a single specimen from Panesthia tryoni tryoni from the same locality is characterised but not named. The species found are all relatively rare parasites of Australian burrowing cockroaches, each having a prevalence of less than 10%.

Studies on the genus Aporcelaimellus Heyns, 1965 (Nematoda, Dorylaimida, Aporcelaimidae). Four typical species with simple uterus from Southern Iberian Peninsula

Zootaxa ◽  
2013 ◽  
Vol 3613 (1) ◽  
pp. 36-60 ◽  
Author(s):  
SERGIO ÁLVAREZ-ORTEGA ◽  
JOAQUÍN ABOLAFIA ◽  
REYES PEÑA-SANTIAGO
Keyword(s):  
Iberian Peninsula ◽  
Body Length ◽  
Inner Core ◽  
Cell Mass ◽  
Tail Length ◽  
Natural Areas ◽  
Caudal Region ◽  
Typical Species ◽  
Female Tail ◽  
Body Diameter

Three new and one known species of the genus Aporcelaimellus with simple uterus and typical caudal region, mainly col-lected in natural areas of southeastern Iberian Peninsula, are studied, including descriptions, measurements, line illustra-tions and LM pictures. Aporcelaimellus baeticus sp. n. is characterized by a body length of 1.96–2.95 mm, lip region offset by constriction and 17–20 μm broad, odontostyle 17–22 μm long, neck 510–635 μm long, pharyngeal expansion 250–335 μm long, a dorsal cell mass at level of anterior end of intestine, uterus 60–150 μm long or 0.9–1.7 times the corresponding body diameter, vulva transverse (V = 48–54), tail convex conoid with broadly rounded terminus (30–46 μm, c = 47–80, c’ = 0.7–1.1), spicules 99–103 μm long, and 18–21 irregularly spaced ventromedian supplements which lack hiatus. Apor-celaimellus brevicaudatus sp. n. is characterized by a body length of 1.54–2.14 mm long, lip region offset by a more or less distinct constriction and 14–16 μm broad, odontostyle 13–15 μm long, neck 512 μm long, pharyngeal expansion 255 μm long, uterus 39–57 μm long or 0.9–1.0 times the corresponding body diameter, V = 50–55, tail short and rounded to hemispherical (24–27 μm, c = 66–82, c’ = 0.6–0.7) with inner core hardly reaching the middle of tail length, and male unknown. Aporcelaimellus rotundus sp. n. is characterized by its body 2.01–2.58 mm long, lip region offset by constriction and 19–20 μm broad, odontostyle 22–23 μm long, neck 455–579 μm long, pharyngeal expansion 226–316 μm long, a dis-tinct dorsal cell mass present at cardia level, uterus 28–74 μm long or 0.5–0.9 times the corresponding body diameter, V = 47–52, female tail short and conoid to rounded (27–33 μm, c = 64–90, c’ = 0.7–0.9), and males unknown. New data, including SEM pictures, sequences and taxonomic comments, are provided for A. waenga.

CHARACTERIZATION AND CONSERVATION OF THE MALPURA SHEEP BREED

1995 ◽  
Vol 16 ◽  
pp. 75-82
Author(s):  
S. C. Mehta ◽  
P. K. Vij ◽  
B. K. Joshi ◽  
R. Sahai ◽  
A. E. Nivsarkar
Keyword(s):  
Body Length ◽  
Age Groups ◽  
Morphological Characteristics ◽  
Tail Length ◽  
The Body ◽  
Body Measurements ◽  
Face Width ◽  
Body Weights ◽  
Face Length ◽  
Chest Girth

SUMMARYObservations were recorded on morphological characteristics, body weights and body measurements of 344 Malpura sheep belonging to nine age groups during a survey conducted in 18 randomly selected villages of three blocks of the Chittorgarh district of Rajastha. The body weights at birth, 1, 3, 6 and 9 months and adult weight averaged 3.3, 6.7±0.88, 12.9±0.71, 16.4±0.71, 21.0±1.00 and 31.4 kg respectively. Height, body length, chest girth, paunch girth, face length, face width, tail length and ear length of adult Malpura sheep averaged 63.6, 66.8, 77.1, 80.9, 20.7, 9.8, 30.3 and 6.3 cm respectively. Sex of the animal had significant effect on weight, height, body length and chest girth at 8 teeth stage. Phenotypic correlations of body weight with height, chest girth and paunch girth ranged from 0.76±0.04 to 0.88±0.03 and regression of weight on these body measurements ranged from 0.63±0.02 to 0.98±0.05.

scholarly journals Morphometry of Asian House Shrew (Suncus murinus) in Jahangirnagar University Campus

2016 ◽  
Vol 43 (2) ◽  
pp. 313-319
Author(s):  
Shamia Farhana Shoma ◽  
Mohammed Mostafa Feeroz ◽  
Md Kamrul Hasan
Keyword(s):  
Body Weight ◽  
Body Length ◽  
Morphometric Analysis ◽  
Tail Length ◽  
The Body ◽  
Sexually Dimorphic ◽  
University Campus ◽  
Suncus Murinus ◽  
House Shrew

A study was conducted on morphometry of Asian House Shrew, Suncus murinus at Jahangirnagar University campus, Savar, Dhaka from December, 2010 to November, 2011. A total of 85 shrews (55 males and 30 females) were studied for morphometric analysis. The body length of shrews varied from 13cm to 18 cm (mean 15.36, sd±1.17). Males were significantly differed from females in size which made them sexually dimorphic (t = 10.02, df = 83, p< 0.005). The body length of males ranged from 14.5 cm to 18 cm (mean = 16, sd±0.82) and in females it ranged from 13 cm to 15.5 cm (mean = 14.19, sd±0.74). The body weight of shrews varied from 45 gm to 138 gm (mean = 85.52, sd±25.6). The weight of males ranged from 65 gm to 138 gm (mean = 99.6, sd±20.03) whereas the body weight of females ranged from 45 gm to 82 gm (mean = 59.73, sd±10.54). Body length was positively correlated to the body weight (r = 0.917) as well as tail length (r = 0.673) and limbs length (forelimb length, r = 0.875 and hindlimb length, r = 0.971) and found to be significant at 1% level of significance.Bangladesh J. Zool. 43(2): 313-319, 2015

scholarly journals Correlation of milk intake and body weight with linear body measurements of white Fulani calves in semi-intensive system of management

2020 ◽  
Vol 47 (3) ◽  
pp. 16-21
Author(s):  
B. I. Umoh ◽  
U. M. Okon ◽  
J. S. Ekpo
Keyword(s):  
Body Weight ◽  
Body Length ◽  
Tail Length ◽  
Neck Circumference ◽  
The Body ◽  
Milk Intake ◽  
Body Measurements ◽  
White Fulani ◽  
Linear Body ◽  
Intensive System

Body weight of animals in the rural areas has not been accurately ascertained due to lack of accurate measurement scales, hence this experiment. The study was conducted to determine the correlation between milk intake and body weight with linear body measurements in white Fulani calves raised in semi-intensive system of management. A total of seven (7) white Fulani calves managed semi-intensively was used for the study. The experiment lasted 12 weeks. The overall mean±SEM value for milk intake, body weight, neck circumference, neck length, body length, body circumference, girth circumference, height at wither and tail length were 1.20±0.40g, 5.18±1.02kg, 21.54±0.66cm, 13.23±0.21cm, 28.36±0.31cm, 36.41±0.43cm, 35.84±0.37cm, 35.87±0.43cm and 23.43±0.39cm respectively. There was significant (P<0.05) effect of lactation stage on all body measurements taken except for neck circumference and tail length. Correlation between all body pairs of measurements were high, positive and highly significant (P<0.05). The highest correlation was recorded for body length, body circumference, girth circumference and height at wither. Linear function provided the best fit for milk intake weight and linear body measurements indicating that body measurements can be used for selection and the estimation of body weight in the fields where accurate scales are not usually available. It is recommended that any of the body measurement parameters could be used in the estimation of the body weight. Also, an improvement of non-genetic factor such as nutrition and general husbandry of the animal as much as possible will bring about improvement in the body parameters as well as maintaining the animal's physiological balance.

Bursaphelenchus pterocarpi n. sp. (Tylenchina: Aphelenchoididae) found in Pterocarpus sp. imported into China from Ghana

Nematology ◽  
2019 ◽  
Vol 21 (7) ◽  
pp. 725-737
Author(s):  
Jianfeng Gu ◽  
Yiwu Fang ◽  
Lele Liu ◽  
Majid Pedram ◽  
Hongmei Li
Keyword(s):  
New Species ◽  
Body Length ◽  
Excretory Pore ◽  
Reproductive System ◽  
Female Body ◽  
Nerve Ring ◽  
Wild Type ◽  
Lateral Field ◽  
Group Species ◽  
Partial 18S

Summary Bursaphelenchus pterocarpi n. sp. isolated from Pterocarpus sp. logs imported from Ghana to Ningbo, China, is described and illustrated. The new species is characterised by a female body length of 630-946 μm, lateral field with four lines, a short 12.6-13.9 μm long stylet with small basal swellings, excretory pore located posterior to nerve ring, outstretched reproductive system with amoeboid sperm inside the spermatheca, a well-developed vulval flap, tail conical and straight with a 1.9-4.8 μm long mucron at the tip, and lacking males in both the wild type and fungal-cultured populations. In a concatenated tree, reconstructed on the basis of the partial 18S, full length ITS and partial 28S rDNA D2-D3 sequences, the new species occupied a basal placement to the clade of xylophilus-group and africanus-group species.

Sign in / Sign up

Export Citation Format

Share Document