It is a cyclopoid but identification up to the species requires a dissection.

It's very much a cyclopoid copepod with clutch. Picture is not clear. Antenna and antenule length and segments needs further dissection with clarity. pl name the microscope and at what magnification. 

Thanks to Gouasmia G, Ramanibai Ravichandran and Tariq H. Y. Al-Maliky all. I am also working with zooplankton. It was very important Whether it is a Mesocyclops sp. or not?

Best

It is not clear here, but if you can take picture of paw 5 (p5) of the female, it become possible to say whether it is Megacyclops or not.

 Dear Aboulghasem,

I agree with Dr. Gouasmia - needs female of photo 2 better and more photos (better to identify). But even male (photo 1 & 3) can try but need supplement data like: body size of adult, furcal length and width and its separate photo, antenna separate photo, P5 good photos, formula of endo- & exopodites and of legs spines, dents of thorax (if exist). So, you should cut abdomen from thorax (you need sharped needle!).

If send me specimens can do precisely.

Andrey

It is aCyclopoid. To identify  the family, genus and up to species, it requires dissection  under microscope.

Dear all:  Andrey Kovalchuk, Maria José Caramujo and Sami Hussein Lakkis: Many thanks for your commands. I will try the best for your recommendations.

Best 

It looks like a Mesocyclops to me.  And Mesocyclops iranicus which now appears to be Mesocyclops aspericornis in Iran is a good start for your identification.  I agree with the others that dissection is necessary for confirmation but the V shape of the caudal ramus suggest Mesocyclops.  Fairly common copepod in ponds.  

 It is a cyclopoid .

I'm not an expert on Copepod.

This copepod is a  tiny  Cyclopoid . The identification requests  delicate dissection of  the legs with focus on  the differenciation  between the right  and left  4th or 5th leg  in male and female .From which habitat is the specimen ?

I agree with Dr. Lakkis

I totally agree with Maria José Caramujo. It is difficult to make identification on the basis of pictures.

I agree with Maria Caramujo

Thanks to all

It’s from fresh water habitat. Tiny copepods.

• Photo Cyclo-3.jpg is Copepod nauplii