Post-embryonic development of Lithobius microps Meinert (Chilopoda: Lithobiidae)

1982 ◽  
Vol 13 (1) ◽  
pp. 89-95 ◽  
Author(s):  
Göran Andersson

AbstractThe variation during development in the following characters of Lithobius microps is described: body-length, head-length, ratio head-length/body-length and head-length/ head-width, number of coxal pores, ocelli, antennal articles and teeth on forcipular coxosternite, projections on tergites 9, 11 and 13, spinulation on the last pair of legs, accessory apical claws on the 15th pair of legs, genitalia and the pattern on the cephalic shield. Also the difference between male and female and the correlation with size within each post-larval stadium are given. The boundary between juvenile and adult stadia, the number of post-larval stadia and the geographical variation in the number of antennal articles and coxal pores are discussed.

1982 ◽  
Vol 13 (4) ◽  
pp. 435-440 ◽  
Author(s):  
Göran Andersson

AbstractThe variation during development in the following characters of Lithobius calcaratus is described: body-length, head-length, ratio head-length/body-length and head-length/ head-width, number of coxal pores, ocelli, antennal articles and teeth on forcipular coxosternite, projections on tergites 9, 11 and 13, spinulation on the last pair of legs, accessory apical claws on the 15th pair of legs, genitalia, male secondary sex character and the pattern on the cephalic shield. Also the difference between male and female and the correlation with size within each post-larval stadium are given. The boundary between juvenile and adult stadia and the number of post-larval stadia are discussed.


1984 ◽  
Vol 15 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Göran Andersson

AbstractThe variation during development in the following characters of Lithobius tenebrosus fennoscandius (= L. nigrifrons fennoscandius) is described: body-length, head-length, ratio head-length/body-length and head-length/head-width, number of coxal pores, ocelli, antennal articles and teeth on forcipular coxosternite, projections on tergites 9, 11 and 13, spinulation on the last pair of legs, accessory apical claws on the 15th pair of legs, genitalia and the pattern on the cephalic shield. Also the difference between male and female and the correlation with size within each post-larval stadium are given. The boundary between juvenile and adult stadia and the number of post-larval stadia are discussed. Male secondary sex-characters, which have been used to distinguish L. t. setiger and L. t. sulcatipes were not found in the Swedish material examined here.


1981 ◽  
Vol 12 (4) ◽  
pp. 437-445 ◽  
Author(s):  
Göran Andersson

AbstractThe variation during development in the following characters of Lithobius crassipes is described: body-length, head-length, ratio head-length/body-length and head-length/headwidth, number of coxal pores, ocelli, antennal articles and teeth on forcipular coxosternite, projections on tergites 9, 11 and 13, spinulation on the last pair of legs (DampP on all legs), accessory apical claws on the 15th pair of legs, genitalia and the pattern on the cephalic shield. Also the difference between male and female and the correlation with size within each post-larval stadium are given. The boundary between juvenile and adult stadia and the number of post-larval stadia are discussed. L. crassipes shows a geographical variation in Sweden and can be divided into western and south-eastern groups (W and SE). There are differences between the two groups especially in spinulation and pattern on the cephalic shield. So far there is no decision of their taxonomical status.


1983 ◽  
Vol 14 (4) ◽  
pp. 387-394 ◽  
Author(s):  
Göran Andersson

AbstractThe variation during development in the following characters of Lithobills curtipes is described: body-length, head-length, ratio head-length/body-length and head-length/headwidth, number of coxal pores, ocelli, antennal articles and teeth on forcipular coxosternite, projections on tergites 9, 11 and 13, spinulation of the last pair of legs (DampP on all legs), accessory apical claws on the 15th pair of legs, genitalia and male secondary sex character. Also the difference between male and female and the correlation with size within each post-larval stadium are given. The boundary between juvenile and adult stadia, the number of post-larval stadia and some geographical variation concerning Swedish and German material are dicussed. Useful characters for identifying L. curtipes and L. crassipes are also discussed.


1980 ◽  
Vol 11 (2) ◽  
pp. 225-230 ◽  
Author(s):  
Göran Andersson

AbstractThe variation during development in the following characters of Lithobius melanops is described: body-length, head-length, ratios of head-length/body-length and head-length/ head-width, number of coxal pores, ocelli. antennal articles and teeth on forcipular coxosternite, projections on tergites 9, 11 and 13, spinulation on the last pair of legs, accessory apical claws on the 15th pair of legs, genitalia and the pattern on the cephalic shield. Also the difference between male and female and correlation with size within each post-larval stadium are given. The boundary between juvenile and adult stadia and the number of post-larval stadia are discussed.


1984 ◽  
Vol 15 (1) ◽  
pp. 9-14 ◽  
Author(s):  
Göran Andersson

AbstractLamyctes fulvicornis is spanandric and most probably thelytokous in Sweden. The variation during development in the following characters is described: body-tength, head-length, ratio head-length/body-length and head-length/head-width, number of coxal pores, ocelli, antennal articles and teeth on forcipular coxosternite, projections on tergites 9, 11 and 13, spinulation, accessory apical claws on the 15th pair of legs, genitalia and the pattern on the cephalic shield. Also correlation with size within each post-larval stadium is given. The boundary between juvenile and adult stadia and the number of post-larval stadia are discussed.


1978 ◽  
Vol 9 (4) ◽  
pp. 241-246 ◽  
Author(s):  
Göran Andersson

AbstractExamined Swedish specimens of Lithobius erythrocephalus belong to the nominate subspecies. The variation during development in size, number of coxal pores, ocelli, antennal articles, teeth on forcipular coxosternite, projections on tergites 9, 11 and 13, spinulation, accessory apical claw on the 15th pair of legs, genitalia and the pattern on the cephalic shield are described. Also the difference between male and female and correlation with size within each stadium are given. There are probably 8 post-larval stadia in Sweden.


2018 ◽  
Vol 5 (3) ◽  
Author(s):  
Rayswe Dumaris Sihombing ◽  
Hamdan ◽  
Tri Hesti Wahyuni ◽  
Nevy Diana Hanafi ◽  
Iskandar Sembiring

RAYSWE DUMARIS SIHOMBING, 2018: ''Reproductive Behavior and Morphology in Horses (Equus Caballus) Males in North Tapanuli District ''. Guided by HAMDAN and TRI HESTI WAHYUNI. This study aimed to see reproduction and morphological performance of the stallion in North Tapanuli Regency. This research was conducted in North Tapanuli regency, Silait-lait Village, Hutajulu Village and Siaro Village and Superior Breeding Cattle Hall and Animal Feed (BPTU-HPT) from June to August 2017. The analysis used in this research is quantitative data analysis which includes average, standard deviation and coefficient of diversity.The variable that distinguishes the horse is the part of reproduction which is divided into two, namely the exterior, which includes the diameter of the scrotum and the interior includes the quality of sperm that are tested miscroscopically and macroscopically. Macroscopic tests include volume measurement, viscosity, color, pH. Microscopic tests of motility, concentration, and abnormality. Morphology, including head length, head width, neck length, shoulder height, chest circumference, chest depth, body length, hip width, hip height.The results showed that stallion in North Tapanuli Regency had good sperm quality with gray white color, low concentration level, pH 6.67, motility 80%, concentration 13,76 x 10 ^ 7ml / ejakulat, and abnormality 16, 6% and morphological appearance have mean, standard deviation and high diversity coefficient with head length 62,30 cm, shoulder height 158,84 cm, chest circumference 174,26 cm, chest depth 78,20 cm, body length 169,86 cm , hip height 167.12 cm and hip width 40.01 cm. In conclusion of this study, the morphology and reproduction of horses in North Tapanuli Regency has good weight and posture and good sperm quality used as males in developing horse cattle.


2019 ◽  
Vol 15 (4) ◽  
pp. 256-259
Author(s):  
Raju Kumar Chaudhary ◽  
Sanjib Kumar Sah ◽  
Surya B. Parajuli ◽  
Suman Pokhrel ◽  
Santosh K. Deo

Background Cephalic index (CI) is one of the important anthropometric parameters to determine racial variation.  Studies done in Nepal has made a comparison of cephalic index for castes (Tharu, Brahmin, Chhetri, Newar), races (Mongoloids and Aryans) but lacks sex variation. The objective of this study was to find the difference in the cephalic index between two genders and to find the sequence of most predominant to least common head type in different genders among the Medical Students of Birat Medical College & Teaching Hospital (BMCTH). Methods A cross-sectional study conducted in the department of Anatomy of BMCTH from 1 July 2019 to 1 September 2019 comprising of 256 medical students (133 male and 123 female) aged between 18 to 24 years. Head length, head breadth and cephalic index were the variables measured using standard devices and techniques. Ethical clearance was taken from the Institutional Review Committee (IRC) of Birat Medical College & Teaching Hospital, Nepal. Results The mean cephalic index in male and female is found to be 81.41 ± 4.52 and 83.62 ± 4.08 respectively. Statistically significant difference found between gender in terms of head length males (18.78±0.69) and females (17.71 ± 0.60); head breadth males (15.28 ±0.62) and females (14.79 ±0.57). The mean cephalic index in males is 81.41 ± 4.52 varying from 69.31 to 94.48. In females, the cephalic index varied from 74.74 to 93.14 and the mean cephalic index is 83.62 ± 4.08. The difference between male and female cephalic index is found to be statistically significant. Majority (43.75%) had Brachycephalic head (CI>79.9) followed by Hyperbrachycephalic (26.95%), Mesocephalic (25.39%), and Dolicocephalic (3.90%). Conclusion Cephalic index is significantly high in female as compared to male whereas head length and breadth are significantly high in males than females. It confirms sexual dimorphism exists. Brachycephalic is the commonest head type.  


2017 ◽  
Vol 45 (3) ◽  
pp. 17-24
Author(s):  
MAMY Khandoker ◽  
M Syafiee ◽  
MSR Rahman

Morphometric characterization of Katjang goat in Malaysia is important for conservation and for further genetic improvement. With this idea in view the present study was carried out to characterize the morphometry and to estimate the relationship among the important morphometric traits of indigenous Katjang goat. The study was conducted at the Faculty of Sustainable Agriculture (FSA), surrounding area of FSA Sandakan, Sabah and Batu Pahat, Johor in Malaysia. Characteristics of body weight (BW), body length (BL), heart girth (HG), wither height (WH), hip height (HH), fore leg length (FLL), hind leg length (HLL), head length (HeL), head width (HW), ear length(EL), ear breadth (EB), tail length (TL), scrotal length (SL) and scrotal circumference (SC) were gathered. In a single parameter as body weight of Katjang bucks at below 1 year, 1-2 year and > 2 years ages were recorded to be 7.41 ± 0.27, 14.20±0.20 and25.83 ± 0.99 kg, respectively. On the hand, body weight of Katjang does at 1-2 year and > 2 years ages were observed to be 12.41 ± 0.41 and 23.65±0.87 kg, respectively. In both sexes, head length, head width, tail length, ear length, ear breath, body weight, body length, hearth girth, wither height, leg length, hip height increases with the increment of the age of goat. On the other hand, all the parameters contemplated found comparatively higher in bucks than that of does.  Strong positive correlation was observed between scrotal length and scrotal circumference in Katjang bucks.Bang. J. Anim. Sci. 2016. 45 (3): 17-24


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