The rat embrayo and uterine epithelium were studied during implantation at 129h p.c., 138h p.c. and 153h p.c., stages. The basophilic bodies found in the iiinpr cell mass and in the uterine epithelium represent dead cells ...

Typical Neurosecretory cells of the cerebral ganglion were studied in three oligochaete families: A. porrectodea caliginosa, Dendrodrilus rubidus: (Lumbricidae)'; Amynchas corticis : (Megascolidae); Dichogaster bolaui: ...

The trematode genus Pseudoplagioporus Yamaguti, 1938 is briefly reviewed. P. microrchis Yamaguti, 1942 is redescribed from Lethrinus lentjan and L. nebulosus caught from Qatari waters in the Arabian Gulf. This is the first ...

Full grown pupae of the Mediterranean fruit fly, Ceratitis capitata Weid were exposed to three doses of gamma radiation, 50 70 and 90 gray. The effects of irradiation on the fly mating activity were studied. There was no ...

The Mediterranean fruit (ly, Ceratitis capitata Weid, was gamma irradiated as full grown pupae with 50, 70 and 90 gray. The produced adults were examined for their attractiveness to the non irradiated (normal) other sex. ...

The desert woodlouse Porcellio evansi from Bahrain and Qatar has a transpiration rate as low or lower than recorded from other desert species. The synanthropic mesic Porsellionides pruinosus has a much higher rate, while ...

Cadmium chloride was injected in doses of 5, 10, 15 and 20 /xg/egg into the yolk sac of 4—day—old chick embryos. Mortality due to cadmium intaxication increased with dose increase. The mortality rate of chick embryos ...

Pregnant rats injected with 60ju,g lead nitrate/gm body weight on day 8 of gestation showed a significant fetal resorption and reduced size of gonads on day 13.5 gestation. Incidence of fetal death and fetal resorption ...