Cerceis insolita n. sp., a new species of sphaeromatid isopod crustacean from the coastal waters of Pakistan

Authors : Farzana YOUSUF

Pages : 663-670

View : 14 | Download : 9

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Cerceis insolita n. sp. insert ignore into journalissuearticles values(Isopoda, Sphaeromatidae);, from the rocky intertidal region of Manora Island, Karachi coast, Pakistan, is described. The species can be identified on the basis of the following characters: antenna 1, pleon, pleotelson, coxal plates, pleopods 4 and 5, and notably by the unusual female pereopod 1 merus being short, transversely expanded, with the distolateral angle laterally produced into circular structure; carpus short, transversely expanded, propodus stout, curved laterally, with convex medial and concave lateral margins, dactylus subtriangular, well-developed unguis and accessory unguis. Right pereopod 7 long, slender, merus distomedial angle produced into medially directed lobe. Left pereopod 7 merus distomedial angle produced posteriorly. The species is described and illustrated.
Keywords : Key words Isopoda, Sphaeromatidae, intertidal rocky habitat, Indian Ocean, Pakistani coast, new species