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Siphopteron
sp. #1
 
Siphopteron sp. #1
Maximum size:  5 mm.

Identification:  This is a bright yellow species that lacks the white margins on the parapodia found in Siphopteron quadrispinosum. Although it may have a small amount of red pigment on the siphon and/or flagellum, it's confined to their tips. The flagellum is also consistently shorter than in S. quadrispinosum.

Natural history:  Siphopteron sp. #1 is a moderately common diurnal species found in moderately exposed to highly exposed rocky habitats at depths of 1-4.5 m (3-15 ft). It swims readily when disturbed and lays a flattened, pale yellow egg mass that hatches in about four days in the laboratory.

Distribution:  Maui, Oahu and Kauai.

Taxonomic notes:  First recorded in Hawaii from Three Tables, Pupukea, Oahu by Scott Johnson on June 10, 1978.

Photo:  CP: 4.5 mm: Black Rock, Maui; April 29, 2006.

Observations and comments:

Note 1:  ( )
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