Faulwetter, S.; Chatzigeorgiou, G.; Galil, B. S.; Nicolaidou, A.; Arvanitidis, C. (2011). Sphaerosyllis levantina sp. n. (Annelida) from the eastern Mediterranean, with notes on character variation in Sphaerosyllis hystrix Claparède, 1863. ZooKeys. 150, 327-345.
Faulwetter, S.; Chatzigeorgiou, G.; Galil, B. S.; Nicolaidou, A.; Arvanitidis, C.
2011
<i>Sphaerosyllis levantina</i> sp. n. (Annelida) from the eastern Mediterranean, with notes on character variation in <i>Sphaerosyllis hystrix</i> Claparède, 1863
Examination of polychaete specimens from Haifa Bay (Israel, eastern Mediterranean Sea) revealed several individuals exhibiting morphological characteristics similar to Sphaerosyllis hystrix Claparède, 1863. A detailed morphometrical analysis of the Israeli specimens in comparison to specimens of S. hystrix and S. boeroi Musco, Çinar & Giangrande, 2005 supported the description of the former as a new species, S. levantina sp. n. Individuals of S. hystrix formed a very heterogeneous group with strong character variations in the analysis and the presumed cosmopolitan distribution of the species is discussed based on literature records.