ALVAREZ-CAMPOS ET AL.: NEW SPECIES OF MYRIANIDA FROM LUZON 
153 
present trepans with fewer and much shorter teeth than the new species. Myrianida pachycera and 
M puladilaw sp. nov. share the presence of a single bayonet chaeta in the posterior parapodia. 
Myrianida gidholmi has the antennae similar in length to the new species. Myrianida arborea 
(Westheide, 1974) and M puladilaw sp. nov. share a unique sinuation of the pharynx and the num¬ 
ber of teeth in the trepan, yet M. arborea has shorter nuchal epaulettes and a single thin bayonet 
chaeta in all segments. None of these species presents a similar striking color pattern or the long 
nuchal epaulettes observed inM. puladilaw sp. nov. (Nygi'en 2004; Nygren and Sundberg 2007). 
Only two Autolytinae, Autolytus triangulifer Grube, 1878, and Myrianida tereseta (Hoagland, 
1920), were previously reported from the Philippines. Both are incompletely described from 
stolons and were considered as “incertae sedis” (Nygren 2004). Therefore, M. puladilaw sp. nov. 
is the first valid Autolytinae described from Philippines. 
Acknowledgments 
This study was supported by the project: Caracterizacion Taxonomica y Sistematica de la 
familia Syllidae (Polychaeta) basada en datos moleculares y moifologicos. El problema de las 
especies cosmopolitas y Biodiversidad en el Pacifico. Project number CGL2009-12292 BOS was 
founded by the Ministerio de Ciencia e Innovacion of the Spanish Government. Collection and 
curation of specimens and processing of molecular data was made possible by funding from the 
Hearst Foundation and the California Academy of Sciences (CAS). The authors wish to thank 
Bryan Rodriguez (University of the Philippines Dilhnan), Anna Sellas and Cerise Chen (CAS Cen¬ 
ter for Comparative Genomics), Ana Riesgo (Universidad de Barcelona), and Aida Verdes (City 
University of New York) for their invaluable assistance to this project. It should be noted that the 
three coauthors contributed equally to this project. Furthermore, the comments of an anonymous 
referee helped greatly to improve the quality of the paper. 
Literature Cited 
Aguado M. T, a. Nygren, and M. Sid dale. 2007. Phytogeny of Syllidae (Polychaeta) based on combined 
molecular analysis of nuclear and mitochondrial genes. Cladistics 23:552-564. 
Aguado M. T, and G. San Martin. 2009. Phytogeny of Syllidae (Annelida, Phyllodocida) based on 
morphological data. Zoologica Scripta 38(4):379-402. 
Aguado M. T, G San Martin, and M. Siddall. 2012. Systematics and evolution of syllids (Syllidae, 
Annelida). Cladistics 28:234-230. 
Drummond, A. J., B. Ashton, M. Cheung., J. Heeed, M. Kearse, R. Moir, S. Stones-Havas, T. Thierer, 
AND A. WiESON. 2009. Geneious v4.8. Available from <http://Mww.geneioits.com/> (accessed 2 Febru¬ 
ary 2010). 
Folmer, O., M. Black, W. Hoeh, R. Lutz, and R. Vrijenhoek. 1994. DNA primers for amplification of 
mito-chondrial cytochrome c oxidase subunit I from diverse metazoan invertebrates. Molecular Marine 
Biotechnology^ 3:294-299. 
Franke, H. D. 1999. Reproduction of the Syllidae. Hydrobiologia 402:39-55. 
Lucas, Y., G. San Martin, and A. Sikorsky. 2010. Anew genus and species of Syllidae (Annelida: Poly¬ 
chaeta) from off the coast of Norway with imusual morphological characters and uncertain systematic 
position. Proceedings of the Biological Society of Washington 123(4):251-257. 
Malaquin, a. 1893. Recherches sur les syllidiens. Memoires de la Societe des Sciences, de VAgriculture et 
des Arts de Lille, 4eme serie, 18:1-477. 
Nygren, A,, and P, Sundberg. 2003. Phytogeny and evolution of reproductive modes in Autolytinae (Sylli¬ 
dae, Annelida). Molecular Phylogenetics and Evolution 29:235-249. 
Nygren, A. 2004. Revision of Autolytinae (Syllidae, Polychaeta). Zootaxa (680): 1-314. 
