Autolytinae from Peru: description of Myrianida paredesi sp nov and new records of Myrianida pentadentata (Imajima, 1966), and Proceraea micropedata (Hartmann-Schroder, 1962)
Univ Nacl Mayor San Marcos;
E-28049 Madrid;
Fac Ciencias Biol;
Fac Ciencias Cantoblanco;
LaBSIM;
Spain;
Dept Biol Zool;
Peru;
Univ Autonoma Madrid;
Lima 11;
Apdo 1100-58;
关键词：
new species;
Syllidae;
Autolytinae;
Myrianida;
phylogeny;
Proceraea;
taxonomy;
Annelida;
reproduction;
期刊名称：
Journal of the Marine Biological Association of the United Kingdom
i s s n：
0025-3154
年卷期：
2016 年
96 卷
8 期
页 码：
1633-1649
页 码：
摘 要：
A new species, Myrianida paredesi, and new records of Myrianida pentadentata (Imajima, 1966), and Procerarea micrope-data (Hartmann-Schoder, 1962), are described from the central coast of Peru. Myrianida paredesi is characterized by the presence of an additional mid-dorsal, digitiform structure, quite similar to a dorsal cirrus (unique among all syllids), a subtriangular prostomium with a posterior region extended to middle peristomium, pharynx with a single elongated sinuation and a trepan with 14-15 equal teeth in a single ring. Descriptions of male and female stolons are also provided. The phylogenetic position of the new species within Myrianida is determined using molecular data, suggesting it is closely related to the species that share the presence of one ciliary troch per segment (except M. pachycera; unknown in M. australiensis), moderate number of equal teeth on trepan (except M. pachycera), and the mode of reproduction.
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