Dear marine biology researchers, I am kindly seeking your expertise in identifying a Mediterranean shrimp species based on specific criteria such as its single frontal spine, rostral structure, and the unique shape of its telson. Your insights on the most polite and effective identification approach would be greatly appreciated.
Dear Zaoui,
I believe this particular specimen belong to the caridean shrimp genus Pasiphaea. Key characteristics of this genus are the pereopods 1 and 2 similar, chelate, with long slender pectinate (comb-like) fingers, mandible without palp, rostrum an erect postfrontal spine or tooth, telson posterior margin with 4 or more pairs of spiniform setae, arthrobranchs present, pereopod 5 with pleurobranch.
Please keep in mind that if it's not this genus, the key characteres to identify your specimen could be different. I recommed you to use a good identification key for that (generally in the key they'll give you the characters you should pay attention to. A good key you can use is Holthuis (1993) - THE RECENT GENERA OF THE CARIDEAN AND STENOPODIDEAN SHRIMPS (CLASS CRUSTACEA, ORDER DECAPODA, SUPERSECTION NATANTIA) WITH KEYS FOR THEIR DETERMINATION
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