Haplosyllis crassicirrata Aguado, San Martín & Nishi, 2006

Lattig, Patricia & Martin, Daniel, 2009, A taxonomic revision of the genus Haplosyllis Langerhans, 1887 (Polychaeta: Syllidae: Syllinae), Zootaxa 2220, pp. 1-40 : 16-17

Haplosyllis crassicirrata Aguado, San Martín & Nishi, 2006

( Fig. 10 A–C)

Haplosyllis crassicirrata Aguado, San Martín & Nishi, 2006: 10 , fig. 1–2.

Examined material. Japan. Holotype MNCN 16.01/10135; 2 Paratypes MNCN 16.01/10136. Yoshio, Boso Peninsula, 35º08’10’’N 140º18’16’’E.

Diagnosis. Body fragile, up to 2.1 mm long for 16 chaetigers. Yellow-pale, with orange marks. Dorsal tentacular cirri and first dorsal cirri long and slender (11–15 and 20–27 articles, respectively); subsequent cirri similar to body width (up to 6 articles), some considerable broader and thick. Two chaetae per parapodia, all similar; MJP short and curved ( Fig. 10 A–C).

Host. Unknown. Types collected intertidally on a rocky shore.

Reproduction. Unknown.

Distribution. Boso Peninsula, Japan.

Remarks. Our observations on the type material confirm the similar chaetal morphology for all body regions. The original description was based on two small specimens, possibly juveniles, characterized by broad dorsal cirri. However, among a large collection of Australian specimens, some had broad cirri as the type specimens, while others had both broad and normal cirri, similar to the first dorsal cirri of the holotype. These specimens will be described in a subsequent paper.

Figures

FIGURE 10. Holotype of Haplosyllis crassicirrata. A—anterior chaeta; B—midbody chaetae; C—posterior chaetae. Scale bar 10 Μm.