AlVAREZ-CAMPOS ET AL.: NEW SPECIES OF MYRIANIDA FROM LUZON 
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Figure Myrianida puladilaw sp. nov. A: Holotype (CASIZ 185700) complete speeimen, with a single stolon; B: para- 
type (MNCN 16.01/14734) eomplete speeimen, with four developing stolons; C: anterior end, dorsal view of holotype. 
tentacular cirri K of dorsal ones. Cirri on first chaetiger as long as median antennae (Figs. lA-C, 
2A). Cirri on chaetiger 2 equal in length to body width. Dorsal cirri from chaetiger 3 onwards, 
alternating in length; short cirri about half longer than body width, long cirri longer than body 
width (Fig. 2A, C). Alternation in cirri orientation not seen. Cirrophores present on tentacular cirri 
and all dorsal cirri. Cirrophores and cirrostyles unequal; short cirrostyles longer than long ones; 
cirrophores of short cirrostyles longer than those of long ones; cirrophores slightly shorter than 
parapodial lobes and shorter than cirrostyles. Appendages cylindrical. Parapodial lobes rounded. 
Single aciculum in all chaetigers. Chaetal fascicle with 11 compound chaetae in anterior, 8 in medi¬ 
an, and 5-7 in posterior chaetigers. Shafts of compound chaetae with distal spines; blades biden- 
tate, with serration on cutting edge; proximal tooth distinctly larger than distal one; posterior fal- 
cigers shorter and wider than anterior ones (Figs. 2D, F; 3D-E). Single narrow bayonet chaetae 
beginning at chaetiger 25-28 (Fig. 2E, 3F). Pharynx with one sinuation anterior to proventricle 
(Fig. 2G). Trepan in chaetiger 2, with 18-20 equal teeth (Fig. 2H), arranged in single ring. Pro ven¬ 
tricle from chaetiger 9 to 11, with 36-38 rows of muscle cells (Fig. 2G). Anal cirri twice longer 
than tentacular cirri (Fig. lA). 
Reproduction and morphology of epitokous stage: Schizogamy is by gemmiparity. The holo¬ 
type of M. puladilaw sp. nov. has a single stolon with 28 chaetigers, 2.5 mm long, without swim- 
